Solar-powered device captures carbon dioxide from air to make sustainable fuel
The researchers, from the University of Cambridge, say their solar-powered reactor could be used to make fuel to power cars and planes, or the many chemicals and pharmaceuticals products we rely on. It could also be used to generate fuel in remote or off-grid locations.
Unlike most carbon capture technologies, the reactor developed by the Cambridge researchers does not require fossil-fuel-based power, or the transport and storage of carbon dioxide, but instead converts atmospheric CO2 into something useful using sunlight. The results are reported in the journal Nature Energy.
Carbon Capture and Storage (CCS) has been touted as a possible solution to the climate crisis, and has recently received £22bn in funding from the UK government. However, CCS is energy-intensive and there are concerns about the long-term safety of storing pressurised CO2 deep underground, although safety studies are currently being carried out.
“Aside from the expense and the energy intensity, CCS provides an excuse to carry on burning fossil fuels, which is what caused the climate crisis in the first place,” said Professor Erwin Reisner, who led the research. “CCS is also a non-circular process, since the pressurised CO2 is, at best, stored underground indefinitely, where it’s of no use to anyone.”
“What if instead of pumping the carbon dioxide underground, we made something useful from it?” said first author Dr Sayan Kar from Cambridge’s Yusuf Hamied Department of Chemistry. “CO2 is a harmful greenhouse gas, but it can also be turned into useful chemicals without contributing to global warming.”
The focus of Reisner’s research group is the development of devices that convert waste, water and air into practical fuels and chemicals. These devices take their inspiration from photosynthesis: the process by which plants convert sunlight into food. The devices don’t use any outside power: no cables, no batteries – all they need is the power of the sun.
The team’s newest system takes CO2 directly from the air and converts it into syngas: a key intermediate in the production of many chemicals and pharmaceuticals. The researchers say their approach, which does not require any transportation or storage, is much easier to scale up than earlier solar-powered devices.
The device, a solar-powered flow reactor, uses specialised filters to grab CO2 from the air at night, like how a sponge soaks up water. When the sun comes out, the sunlight heats up the captured CO2, absorbing infrared radiation and a semiconductor powder absorbs the ultraviolet radiation to start a chemical reaction that converts the captured CO2 into solar syngas. A mirror on the reactor concentrates the sunlight, making the process more efficient.
The researchers are currently working on converting the solar syngas into liquid fuels, which could be used to power cars, planes and more – without adding more CO2 to the atmosphere.
“If we made these devices at scale, they could solve two problems at once: removing CO2 from the atmosphere and creating a clean alternative to fossil fuels,” said Kar. “CO2 is seen as a harmful waste product, but it is also an opportunity.”
The researchers say that a particularly promising opportunity is in the chemical and pharmaceutical sector, where syngas can be converted into many of the products we rely on every day, without contributing to climate change. They are building a larger scale version of the reactor and hope to begin tests in the spring.
If scaled up, the researchers say their reactor could be used in a decentralised way, so that individuals could theoretically generate their own fuel, which would be useful in remote or off-grid locations.
“Instead of continuing to dig up and burn fossil fuels to produce the products we have come to rely on, we can get all the CO2 we need directly from the air and reuse it,” said Reisner. “We can build a circular, sustainable economy – if we have the political will to do it.”
The technology is being commercialised with the support of Cambridge Enterprise, the University’s commercialisation arm. The research was supported in part by UK Research and Innovation (UKRI), the European Research Council, the Royal Academy of Engineering, and the Cambridge Trust. Erwin Reisner is a Fellow of St John’s College, Cambridge.
Reference:
Sayan Kar et al. ‘Direct air capture of CO2 for solar fuels production in flow.’ Nature Energy (2025). DOI: 10.1038/s41560-025-01714-y
For more information on energy-related research in Cambridge, please visit the Energy IRC, which brings together Cambridge’s research knowledge and expertise, in collaboration with global partners, to create solutions for a sustainable and resilient energy landscape for generations to come.
Researchers have developed a reactor that pulls carbon dioxide directly from the air and converts it into sustainable fuel, using sunlight as the power source.
We can build a circular, sustainable economy – if we have the political will to do itErwin ReisnerSayan KarSolar-powered flow reactor
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Prioritise vaccine boosters for vulnerable immunocompromised patients, say scientists
The findings, published today in Science Advances, suggest that such individuals will need regular vaccine boosters to protect them and reduce the risk of infections that could be severe and also lead to new ‘variants of concern’ emerging.
Almost 16 million people worldwide are estimated to have died from Covid-19 during 2020 and 2021, though nearly 20 million deaths are thought to have been prevented as a result of the rapid rollout of vaccines against SARS-CoV-2, the virus that caused the pandemic.
During the pandemic, researchers discovered that immunocompromised individuals had difficulty clearing the virus, even when vaccinated. These are people whose immune systems are not functioning correctly, either as a direct result of disease or because they are on medication to dampen down their immune systems, for example to prevent organ transplant rejection. This meant that their infections lasted longer, giving the virus more opportunities to mutate.
Research from early in the pandemic showed that chronic infections can give rise to variants of concern that can then cause new waves of infection in the wider population.
When an individual is vaccinated, their immune systems produce antibodies that recognise and launch an attack on the virus. Such a process is known as seroconversion. Additional ‘booster’ vaccinations increase seroconversion and hence the likelihood of clearing infection.
However, although most immunocompromised individuals will have received three or more doses of the Covid-19 vaccine, they still account for more than a fifth of hospitalisations, admissions to intensive care units, and overall deaths associated with the disease.
To see why this is the case, scientists at the Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID) at the University of Cambridge examined immunocompromised individuals who had been vaccinated against Covid-19. These patients, recruited from Cambridge University Hospitals NHS Foundation Trust, were living with vasculitis, a group of disorders that cause inflammation of blood vessels. Data from this group was compared against individuals who were not immunocompromised.
Treatments for vasculitis rely on immunosuppressant medicines. These include drugs such as rituximab, which depletes the number of B-cells in the body – but B-cells are the immune cells responsible for producing antibodies. As such, these individuals are a severely at-risk population.
When the researchers analysed bloods samples from the vasculitis patients, they found that even though vaccination induced seroconversion, this in itself was not always sufficient to neutralise the virus. Every immunocompromised individual required at least three doses of the vaccine to protect them across a range of variants up to and include Omicron (the variant that appeared towards the end of 2021 and caused a new wave of infections). In some cases, even four vaccinations were not sufficient to adequately protect them.
Kimia Kamelian, a Gates Cambridge Scholar at CITIID and St Edmund's College, Cambridge, said: “We know that immunocompromised individuals are particularly vulnerable to diseases such as Covid-19 because their immune systems struggle to clear infections. Vaccinations offer some protection, but our study shows that only repeated vaccinations – often four or more – offer the necessary protection.”
Professor Ravi Gupta, also from CITIID and a Fellow at Homerton College, Cambridge, added: “This of course has implications for the individual, who is more likely to have prolonged infection and a much greater risk of severe infection, but it also gives the virus multiple opportunities to mutate.
“We know from our previous work that at least some of the variants of concern probably emerged during chronic infections. That’s why these individuals must be given priority for updated vaccines against new variants.”
The research was funded by Wellcome, Gates Cambridge, Addenbrooke’s Charitable Trust and Vasculitis UK, with additional support by the National Institute for Health and Care Research Cambridge Biomedical Research Centre.
Reference
Kamelian, K et al. Humoral responses to SARS-CoV-2 vaccine in vasculitis-related immune suppression. Sci Adv; 12 Feb 2025; DOI: 10.1126/sciadv.adq3342
Vaccinations alone may not be enough to protect people with compromised immune systems from infection, even if the vaccine has generated the production of antibodies, new research from the University of Cambridge has shown.
We know that immunocompromised individuals are particularly vulnerable to diseases such as Covid-19 because their immune systems struggle to clear infectionsKimia KamelianNoSystem imagesVaccination of an senior male
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Cambridge signs sustainable research agreement
Developed collaboratively by representatives from across the UK’s research and innovation sector, including universities, research institutes and funding organisations, the Concordat is a commitment and shared ambition to embed environmental sustainability in research practice, culture, and approach throughout the signed organisations, and collectively as a sector.
"Not only is the Concordat a very welcome initiative to bring the sector together and address the environmental impacts of research and innovation activities, which otherwise detract from their net benefits," says Prof Judy Hirst, chair of the University's Sustainable Research Working Group, “it is also a clear signal from funders of their increasing expectations of both institutions and individuals to cut the environmental costs of the research they fund."
By signing the Concordat (Nov 2024), the University commits to progressively embed environmental sustainability into its research and innovation practices through action in six priority areas:
- Leadership and system change
- Sustainable Infrastructure
- Sustainable procurement
- Emissions from business and academic travel
- Collaborations and partnerships
- Environmental impact and reporting data
While the University is taking action on a number of fronts to improve its operational environmental sustainability performance, the Concordat helps us to go further by embedding environmental commitments into the design and delivery of our research, focused towards the six priority areas. This in turn will strengthen the University’s ability to respond to the increasing expectations of research funding bodies in relation to environmental sustainability.
"The University’s efforts to enhance the sustainability of research practices are a key part of a wider commitment to operational environmental sustainability. Many funders, policymakers, and institutions across the Higher Education sector recognise that more must be done, and the Concordat provides an important foundation for ensuring our approaches are aligned and enabling researchers to take meaningful action," says Dr Andrew Jackson, Director of Research Services. "To effectively reduce environmental harm, we must learn from each other, establish best practice, and create the right conditions to implement it within our research community."
Last year, the University announced plans to strengthen its leadership on environmental sustainability, across both its academic and operational activities. You can read about Cambridge’s approach to academic environmental sustainability on the Climate and Nature page, and operational environmental sustainability on the Environmental Sustainability website. Further information will be shared as the University develops its plans to deliver on the commitments of the Concordat for the Environmental Sustainability of Research and Innovation Practice.
Professor Sir John Aston, Pro-Vice-Chancellor for Research, says "Signing the Concordat marks the beginning of a deeper focus on the environmental impact of doing research at the University of Cambridge. University leaders, departments, institutes, laboratories and individual researchers will all have a part to play, and I’m excited to see where bringing together the best minds in the world will lead us in enhancing the sustainability of the University’s research operations. I would very much like to thank Prof Judy Hirst and the whole Sustainable Research Working Group for their leadership in this area."
Lab-based staff and students can currently get tailored support to improve their environmental performance using the Laboratory Efficiency Assessment Framework (LEAF).
The University of Cambridge has become a signatory to the ground-breaking Concordat for the Environmental Sustainability of Research and Innovation Practice, joining 70 signatories and supporting organisations at the time of writing.
This is a very welcome initiative to bring the sector together and address the environmental impacts of research and innovation activities.Prof Judy Hirst, chair of the University's Sustainable Research Working Group
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Map of brain’s appetite centre could enable new treatments for obesity and diabetes
Published today in Nature, this comprehensive resource, called HYPOMAP, provides an unparalleled view of the brain’s appetite centre and promises to accelerate the development of treatments for obesity and diabetes.
The hypothalamus is often described as the brain’s ‘control centre’, orchestrating many of the body’s most vital processes. While much of our knowledge of the hypothalamus comes from animal studies, especially in mice, translating these findings to humans has long been a challenge. HYPOMAP bridges this gap by providing an atlas of the individual cells within the human hypothalamus. This resource not only charts over 450 unique cell types but also highlights key differences between the human and mouse hypothalamus — differences that have major implications for drug development.
“This is a game-changer for understanding the human hypothalamus,” said Professor Giles Yeo, senior author of the study from the Institute of Metabolic Science-Metabolic Research Laboratories (IMS-MRL) and MRC Metabolic Diseases Unit, University of Cambridge.
“HYPOMAP confirms the critical role of the hypothalamus in body-weight regulation and has already allowed us to identify new genes linked to obesity. It gives us a roadmap to develop more effective, human-specific therapies.”
Together with researchers at the Max Planck Institute for Metabolism Research in Cologne, Professor Yeo and colleagues used cutting-edge technologies to analyse over 400,000 cells from 18 human donors. HYPOMAP allows researchers to pinpoint specific cell types, understand their genetic profiles, and explore how they interact with neighbouring cells. This detailed cellular resolution offers invaluable insights into the circuits that regulate appetite and energy balance, as well as other functions such as sleep and stress responses.
Comparison with a mouse hypothalamus atlas revealed both similarities and critical differences. Notably, some neurons in the mouse hypothalamus have receptors for GLP-1 — targets of popular weight-loss drugs like semaglutide — that are absent in humans.
"While drugs like semaglutide have shown success in treating obesity, newer therapies target multiple receptors such as GLP-1R and GIPR. Understanding how these receptors function specifically in the human hypothalamus is now crucial for designing safer and more effective treatments," said Dr Georgina Dowsett from the Max Planck Institute for Metabolism Research and formerly at the IMS-MRL.
“Our map of the human hypothalamus is an essential tool for basic and translational research,” added Professor Jens C. Brüning, Director at the Max Planck Institute. “It allows us to pinpoint which mouse nerve cells are most comparable to human cells, enabling more targeted preclinical studies.”
HYPOMAP’s open-access nature ensures that it will be an invaluable resource for scientists worldwide. By offering insights into the hypothalamus’s role in conditions ranging from obesity to cachexia (a wasting condition associated with several illness, which involves extreme loss of muscle and fat), it provides a foundation for tackling some of the most pressing health challenges of our time.
Dr John Tadross, Consultant Pathologist at Addenbrooke’s Hospital and lead author from IMS-MRL, said: “This is just the beginning. The atlas itself is a milestone, but what could really make a difference for patients is understanding how the hypothalamus changes in people who are overweight or underweight. This could fundamentally shift our approach to metabolic health and enable more personalised therapies.”
With HYPOMAP, researchers have a new tool to unlock the secrets of the human brain’s metabolic control centre. By better understanding the human hypothalamus, science takes a significant step toward combating obesity, diabetes, and related conditions.
Reference
Tadross, JA, Steuernagel, L & Dowsett, GKC et al. A comprehensive spatio-cellular map of the human hypothalamus. Nature; 5 Feb 2025; DOI: 10.1038/s41586-024-08504-8
Adapted from a story by the Institute of Metabolic Science-Metabolic Research Laboratories and the Max Planck Institute for Metabolism Research
Scientists have created the most detailed map to date of the human hypothalamus, a crucial brain region that regulates body weight, appetite, sleep, and stress.
HYPOMAP confirms the critical role of the hypothalamus in body-weight regulation and has already allowed us to identify new genes linked to obesityGiles YeoSander DalhuisenPerson holding burger bun with vegetables and meat
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Senior Government Minister, Pat McFadden, visits Cambridge to explore how AI can transform public services
Mr McFadden was welcomed by Vice-Chancellor, Professor Deborah Prentice, to DAWN, the fastest supercomputer in Europe, where he was given a tour of the cutting-edge facility by Dr Paul Calleja, Director of the University’s Research Computing Services. He also spoke with engineers who work on the supercomputer, with industry partners at Dell, and the UK's Atomic Energy Authority.
Professor Prentice said: "I was very pleased to welcome the Minister to Cambridge to explore the rapidly-developing ways in which the University's research, and DAWN-powered AI, are driving improvements in everyday life. From improving diagnostics to speeding up planning applications, Cambridge AI research is producing positive impact in people's lives."
Following the tour of DAWN, the Minister visited Cambridge University Hospitals (CUH) to witness firsthand the practical applications of DAWN-powered AI. Mr McFadden was shown two use cases of this technology in healthcare.
Professor Fleur Kilburn-Toppin discussed the potential for AI in breast cancer diagnosis through the EDITH trial, a multicentre mammography study assessing AI’s role in enhancing cancer detection. This discussion coincided with the Government’s launch of the EDITH trial to tackle breast cancer on World Cancer Day.
The second case study was presented in the Radiography labs, by Dr Suthesh Sivapalaratnam and Professor Carola-Bibiane Schönlieb, who spoke to the Minister about the Blood Counts AI project which harnesses AI to revolutionise disease detection. The project provides an early warning system for infectious diseases, improving public health responses across the NHS.
The day concluded with a roundtable conversation with academics and clinicians around how the UK can harness the potential of AI to improve public services across various areas, ranging from healthcare to productivity and local government services.
This visit underscored the University's pivotal role in harnessing AI for societal benefit and the potential for University research in cutting-edge technology to help public service transformation.
The University welcomed the Chancellor of the Duchy of Lancaster, Rt Hon Pat McFadden MP, to tour the DAWN supercomputer and discuss the ways in which AI can transform public services and healthcare.
From improving diagnostics to speeding up planning applications, Cambridge AI research is producing positive impact in people's lives.Vice-Chancellor, Professor Deborah PrenticeUniversity of CambridgeProfessor Deborah Prentice with Pat McFadden, centre, and Dr Paul Calleja
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Researchers celebrated at the Cambridge Awards for Research Impact and Engagement
The Cambridge Awards for Research Impact and Engagement, formerly the Vice-Chancellor's Award, are held annually to recognise exceptional achievement, innovation, and creativity in developing research engagement and impact plans with significant economic, social, and cultural potential. Awarded in three categories, the winners for 2024 are:
Established Academic
Winner: Professor Sander van der Linden (Department of Psychology, School of Biological Sciences and Churchill College) and his team at the Cambridge Social Decision-Making Lab (Team application)
Project: A Psychological Vaccine Against Misinformation
Professor Sander van der Linden and team have developed a novel approach to countering the spread of harmful misinformation. This ‘psychological vaccine’ resulted in award winning public impact tools that have shown millions of people how to spot fake news online. These games have been adopted by the World Health Organisation, United Nations, UK Government and Google and led to key policy changes in the EU Digital Services Act.
Early Career Researcher
Winner: Dr Gabriel Okello (Cambridge Institute for Sustainability Leadership, School of Technology)
Project: Applying multidisciplinary, collaborative approaches to tackle air pollution in rapidly urbanising African cities
The project catalysed Uganda’s first-ever Air Quality Standards, advancing policy and public health. It drove transformative growth in the e-mobility sector and battery-swapping stations. The Clean Air Network was established as a multi-regional community of practice for air quality management across Africa. The platform now provides real-time air quality data enabling evidence-based decision-making in Uganda and eight other African countries.
Collolaboration Award
Winner:
Lead: Prof Paul Fletcher (Department of Psychiatry, School of Clinical Medicine, Clare College), Dr Dervila Glynn (Cambridge Neuroscience IRC), Dominic Matthews (Ninja Theory Ltd), Sharon Gilfoyle (Cambridgeshire and Peterborough NHS Foundation Trust)
Project: Representing psychosis in video games: Communicating clinical science and tackling stigma
This work draws together expertise in video game design and clinical neuroscience, with lived experience of mental illness to co-produce two award-winning video games vividly conveying the nature of altered experience of reality in a character with psychosis. Within conversations around mental health, psychosis is neglected and highly stigmatised.
In creating a powerful character and telling her story through gameplay, the project has enabled sensitive and thoughtful conversations about psychosis, and mental illness in general. It has had a measurably positive impact on stigma.
Find out more about the winning projects and meet our runners-up here: www.cam.ac.uk/public-engagement/cambridge-awards-2024.
From helping to inoculate the public against misinformation to tackling air pollution in rapidly urbanising African cities, researchers from across the University of Cambridge were honoured at the Cambridge Awards yesterday (Monday 3rd February) afternoon.
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Electricity prices across Europe to stabilise if 2030 targets for renewable energy are met
Hitting the current national 2030 quotas for solar and wind energy could reduce the volatility of electricity markets by an average of 20% across 29 European countries, according to a new study from the University of Cambridge.
The intensity of spikes in power prices are predicted to fall in every country by the end of the decade if commitments to green energy are met, as natural gas dependency is cut.
The UK and Ireland would be the biggest beneficiaries, with 44% and 43% reductions in the severity of electricity price spikes by 2030, compared with last year.
Germany could experience a 31% decline in electricity price volatility, with the Netherlands and Belgium seeing price spikes ease by 38% and 33% respectively.
The simulations conducted for the new study show that scaling up renewable energy minimises the market impact of fluctuations in natural gas price – increasing stability even when considering the reliance of renewable technologies on weather.
Some EU leaders and energy ministers have called for renewables targets on grounds of energy security as well as decarbonisation, particularly since Putin’s war on Ukraine stemmed the flow of Russian gas.
The study, published in the journal Nature Energy, calculates in detail how such aims would affect the volatility of wholesale electricity prices in energy markets across Europe.
“The volatility of energy prices is a major cause of damage to national economies,” said Laura Diaz Anadon, the University of Cambridge’s Professor of Climate Change Policy.
“Consumers are still reeling from sharp increases in electricity prices brought about by natural gas shortages following Russia’s invasion of Ukraine,” said Anadon. “We show that hitting renewables targets reduce the likelihood of such price spikes in the future.”
Daniel Navia, a researcher with the University’s Centre for Environment, Energy and Natural Resource Governance (CEENRG), said: “Meeting renewable energy targets is not only good for carbon neutrality, but we can see it is a boost to economic resilience”
“We had probably underestimated how costly energy price shocks are to our societies, and the last crisis has been a stark reminder.”
The Cambridge researchers used the University’s high performance computing facilities to model a wide range of factors – from fluctuations in weather patterns and energy demands to fuel capacity – to map the current and future grids of all 27 EU nations plus the UK and Switzerland.
They assessed electricity markets in 2030 based on the commitments to renewables as stated in each nation’s national energy and climate plan.
“The UK in particular is projected to see major benefits to its energy market stability from renewables,” said Anadon.
“The UK has struggled with its exposure to gas prices due to a lack of energy storage and limited connections to the European grid. This has led to more hours where electricity prices are set by natural gas.”
The research also suggests that wholesale prices of electricity could fall by over a quarter on average across all countries in the study by decade’s end if they stick to current national renewables targets.
Again, populations in the UK and Ireland stand to gain significantly, with electricity prices predicted to fall by around 45% by 2030, compared with the current situation.
Several of the Nordic nations could see over 60% reductions in electricity costs by 2030, while in Germany the price is predicted to fall by 34%, with Belgium seeing a similar drop of 31%. The study suggests the Netherlands could see the price of electricity fall by 41%.
While the study’s authors caution that trends in electricity prices depend on factors that are “impossible to predict”, they say their results are in line with recent outputs by institutions such as the International Energy Agency.
In fact, Navia and Anadon say their modelling may even underestimate the potential for electricity price stability across Europe, as the projections were calculated using data from 1990-2021 – before the energy crisis created by Russia’s attack on Ukraine.
“It makes sense to think about renewables as a security investment, and if we lose the momentum towards green energy, we are clearly harming the climate, but we also exposing ourselves to unknowable risks down the line,” said Anadon.
The new study also charts the effects on electricity prices if countries overshoot on renewables. If Europe exceeds its renewable energy goals by 30%, electricity prices could become 50% less sensitive to natural gas, compared to just meeting renewables targets.
However, the study suggests there are tipping points where renewables cause the price of power to fall so far that it stops providing sufficient return on investment, and the green energy industries may stall.
Added Navia: “If we are to fully utilise solar and wind as a security tool, Europe might have to rethink how its energy markets are designed, and what incentives it can offer the private sector to maintain the societal insurance value it gets from renewable energy.”
National targets for solar and wind power will see reliance on natural gas plummet, reducing electricity price volatility across Europe, with major beneficiaries including the UK and Ireland, the Nordics, and the Netherlands.
The UK in particular is projected to see major benefits to its energy market stability from renewablesLaura Diaz AnadonAnton Petrus via Getty images High voltage electricity towers combined with economic charts
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Tiny copper ‘flowers’ bloom on artificial leaves for clean fuel production
The researchers, from the University of Cambridge and the University of California, Berkeley, developed a practical way to make hydrocarbons – molecules made of carbon and hydrogen – powered solely by the sun.
The device they developed combines a light absorbing ‘leaf’ made from a high-efficiency solar cell material called perovskite, with a copper nanoflower catalyst, to convert carbon dioxide into useful molecules. Unlike most metal catalysts, which can only convert CO₂ into single-carbon molecules, the copper flowers enable the formation of more complex hydrocarbons with two carbon atoms, such as ethane and ethylene — key building blocks for liquid fuels, chemicals and plastics.
Almost all hydrocarbons currently stem from fossil fuels, but the method developed by the Cambridge-Berkeley team results in clean chemicals and fuels made from CO2, water and glycerol – a common organic compound – without any additional carbon emissions. The results are reported in the journal Nature Catalysis.
The study builds on the team’s earlier work on artificial leaves, which take their inspiration from photosynthesis: the process by which plants convert sunlight into food. “We wanted to go beyond basic carbon dioxide reduction and produce more complex hydrocarbons, but that requires significantly more energy,” said Dr Virgil Andrei from Cambridge’s Yusuf Hamied Department of Chemistry, the study’s lead author.
Andrei, a Research Fellow of St John’s College, Cambridge, carried out the work as part of the Winton Cambridge-Kavli ENSI Exchange programme in the lab of Professor Peidong Yang at University of California, Berkeley.
By coupling a perovskite light absorber with the copper nanoflower catalyst, the team was able to produce more complex hydrocarbons. To further improve efficiency and overcome the energy limits of splitting water, the team added silicon nanowire electrodes that can oxidise glycerol instead. This new platform produces hydrocarbons much more effectively — 200 times better than earlier systems for splitting water and carbon dioxide.
The reaction not only boosts CO₂ reduction performance, but also produces high-value chemicals such as glycerate, lactate, and formate, which have applications in pharmaceuticals, cosmetics, and chemical synthesis.
“Glycerol is typically considered waste, but here it plays a crucial role in improving the reaction rate,” said Andrei. “This demonstrates we can apply our platform to a wide range of chemical processes beyond just waste conversion. By carefully designing the catalyst’s surface area, we can influence what products we generate, making the process more selective.”
While current CO₂-to-hydrocarbon selectivity remains around 10%, the researchers are optimistic about improving catalyst design to increase efficiency. The team envisions applying their platform to even more complex organic reactions, opening doors for innovation in sustainable chemical production. With continued improvements, this research could accelerate the transition to a circular, carbon-neutral economy.
“This project is an excellent example of how global research partnerships can lead to impactful scientific advancements,” said Andrei. “By combining expertise from Cambridge and Berkeley, we’ve developed a system that may reshape the way we produce fuels and valuable chemicals sustainably.”
The research was supported in part by the Winton Programme for the Physics of Sustainability, St John’s College, the US Department of Energy, the European Research Council, and UK Research and Innovation (UKRI).
Reference:
Virgil Andrei et al. ‘Perovskite-driven solar C2 hydrocarbon synthesis from CO2.’ Nature Catalysis (2025). DOI: 10.1038/s41929-025-01292-y
Tiny copper ‘nano-flowers’ have been attached to an artificial leaf to produce clean fuels and chemicals that are the backbone of modern energy and manufacturing.
Virgil AndreiSolar fuel generator
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Cambridge recognised as the UK’s leading university for global innovation
The report, carried out by analytics firm Clarivate, looks at the critical role of research in shaping global industrial innovation and societal impact, using data and expert insights derived from academic research and patent citations.
The report highlights how knowledge flows between academia and industry across countries and regions, underscoring the global nature of innovation. It identifies the top 50 universities named on the academic papers that received the highest number of citations from patents granted to the companies and organisations on the Top 100 Global Innovators 2024 list.
Professor Deborah Prentice, Vice-Chancellor, University of Cambridge, said: “Cambridge has a thriving community of spin-outs, start-ups and partnerships that demonstrates how academia and industry can work together to transform ideas into real-world impact. The University is key to this, and we are developing hugely ambitious plans that will transform the UK economy and reinforce the UK’s status as a leader in global innovation.”
The report comes the day after Chancellor of the Exchequer Rachel Reeves unveiled her strategy to unleash the potential of the Oxford-Cambridge Growth Corridor by catalysing the growth of UK science and technology. The plan recognises the University of Cambridge as the world’s leading science and technological cluster by intensity, and its potential to rapidly build on the £30bn contribution it already makes to the UK economy.
According to the report, the top 10 universities influencing patented inventions are:
- Harvard University (US)
- Stanford University (US)
- Massachusetts Institute of Technology – MIT (US)
- University of California, Berkeley (US)
- Université Paris Cité (France)
- University of Cambridge (UK)
- University of Washington, Seattle (US)
- University of California, San Diego (US)
- University of Michigan (US)
- University of Toronto (Canada)
Among the report’s key findings was that the UK demonstrates particularly diverse international influence, with its research often serving as a bridge across regions.
Gordon Rogers, report author and Senior Manager, Data Science at the Institute for Scientific Information at Clarivate, said: “Groundbreaking ideas driving the world’s most innovative companies often originate from academic research. Our report demonstrates that by fostering collaboration between academia and industry, we can fuel technological advancements, providing solutions to societal challenges in healthcare, sustainability, and economic development.”
Read more at: The top 50 universities powering global innovation
The University of Cambridge has been named as the leading UK university in a new report on the top 50 universities powering global innovation.
Cambridge has a thriving community of spin-outs, start-ups and partnerships that demonstrates how academia and industry can work together to transform ideas into real-world impactDeborah PrenticeStudent at Maxwell Centre, University of Cambridge
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Chancellor of the Exchequer: Cambridge to drive rapid research-led economic growth
During a speech in Oxfordshire, Chancellor of the Exchequer Rachel Reeves unveiled her strategy to unleash the potential of the Oxford-Cambridge Growth Corridor by catalysing the growth of UK science and technology. The plan recognises the University of Cambridge as the world’s leading science and technological cluster by intensity, and its potential to rapidly build on the £30 billion contribution it already makes to the UK economy.
As part of the announcement, the Chancellor welcomed Cambridge’s proposal for a new large-scale innovation hub in the city centre:
“I am delighted that Cambridge University has come forward with plans for a new flagship innovation hub at the centre of Cambridge – to attract global investment and foster a community that catalyses innovation. As other cities around the world like Boston and Paris have done.”
Modelled on The Engine in Boston and Station F in Paris, the hub will be a hothouse to rapidly transform the best research ideas from across the UK into the companies of tomorrow.
Significant investment will also be made in transport and infrastructure across Cambridge and the wider Oxford-Cambridge Growth Corridor, as well as in securing water supplies and delivering new homes and associated community spaces such as schools, leisure facilities, and office and laboratory space.
Commenting on the speech and the importance of Cambridge as a partner in delivering UK growth, University Vice-Chancellor Professor Deborah Prentice said:
“It is great to see the Chancellor of the Exchequer recognising how Cambridge can help drive transformational growth for the UK. We welcome the Government's commitment to the vital infrastructure that will support sustainable growth across the region, and we are delighted to partner with the Government to establish a national innovation hub in the heart of this city. The hub will bring together brilliant tech and life sciences companies, entrepreneurs and investors in one location to deliver innovation at scale.”
The announcement follows an open letter to the Government from the University and Cambridge businesses at the start of the year that sets out the case for renewed support for a region with a proven track record and which stands ready to deliver economic growth.
Cambridge is at the heart of Government plans announced today to go ‘further and faster’ to kick start economic growth in the UK.
The text in this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Images, including our videos, are Copyright ©University of Cambridge and licensors/contributors as identified. All rights reserved. We make our image and video content available in a number of ways – on our main website under its Terms and conditions, and on a range of channels including social media that permit your use and sharing of our content under their respective Terms.