To date, research into the synthesis of solar fuels and valuable chemicals has focused on developing materials that are efficient, cost-effective and durable. Despite significant progress, it is still unclear how devices capable of artificial photosynthesis would look like at an industrial scale, and if they would be economically competitive with well-stablished, non-renewable energy conversion technologies. Addressing this requires coordinated progress across multiple disciplines, including materials science, (photo)electrochemistry, electrochemical engineering, and optics and also different time- and length-scales, spanning from the atomic to the industrial scale. These efforts are usually complemented with numerical modelling to guide system design and optimisation, and life cycle analyses to assert the technical and economic system viability. Excitingly, the field is now beginning to transition from laboratory-based studies to investigations under real and varied conditions, including outdoor operation on Earth under concentrated, direct, or diffuse irradiance, across a range of pressures, unconventional chemical substrates, and even within extraterrestrial environments. While these atypical environments unlock a wider range of applications beyond standard one-sun water splitting, they bring added technical challenges that must be addressed for effective deployment in real environments. These emerging directions set the stage for the topics explored in this symposium
- Unconventional reaction environments: exploring the effects of temperature, irradiance, pressure, or gravity
- Diverse solar-driven reactions: water splitting, CO₂ and waste valorisation, and nitrogen reduction
- Field testing of solar fuel devices: from laboratory validation to real-world performance
- Photoelectrochemical reactor engineering: integrating experimental insights with multiphysics modelling
- Thermo-photo-electrochemical system integration: understanding and harnessing synergistic effects
- Corrosion and photodegradation in photoelectrochemical devices: mechanisms and mitigation strategies
I'm an Associate Professor in the Department of Chemical Engineering at Imperial College London (ICL). My principal interests and expertise are in the science and engineering of electrochemical energy conversion, CO2 reduction, and separation processes for industrial effluent treatment and material recycling. After obtaining my MSci degree in Physics at ICL in 2007, I moved to the Department of Chemical Engineering to carry out PhD studies in electrochemical wastewater treatment through heavy metal recovery. I subsequently conducted multiple postdoctoral research projects in the same department, including in photoelectrochemical solar fuel production, waste management by electrochemical treatment of waste streams and valorisation of CO2 via conversion into fuels. Academic research projects in my group are aimed at solving industrial problems through both experimental and numerical modelling investigations.
Fatwa Abdi is an Associate Professor at the School of Energy and Environment, City University of Hong Kong. Until July 2023, he was a group leader and the deputy head of the Institute for Solar Fuels, Helmholtz-Zentrum Berlin (HZB). He obtained his PhD (cum laude) in Chemical Engineering from TU Delft, the Netherlands, in 2013. He was the recipient of the Martinus van Marum prize from the Royal Dutch Society of Sciences and Humanities. His research focusses on the development of novel (photo)electrode materials as well as engineering and scale-up of devices for solar fuels and chemicals conversion.
Virgil Andrei is a Nanyang Assistant Professor (NAP) in the School of Materials Science and Engineering at NTU Singapore. His research revolves around the integration of renewable energy technologies (photoelectrocatalysis, photovoltaics, thermoelectrics) for effective solar-to-chemical synthesis. His work places a strong focus on rational material, catalyst and device design, introducing modern fabrication techniques towards low-cost, large-scale solar fuel applications.
Virgil was born in Bucharest, Romania. He obtained his Bachelor and Master of Science degrees in chemistry from Humboldt-Universität zu Berlin, where he studied thermoelectric polymer pastes and films in the group of Prof. Klaus Rademann (2014–2016). He then pursued a Ph.D. in chemistry at the University of Cambridge (2016–2020), where he developed perovskite-based artificial leaves in the group of Prof. Erwin Reisner, working closely with the optoelectronics group of Prof. Richard Friend at the Cavendish Laboratory. During his Title A Research Fellowship at St. John’s College, Cambridge (2020-2025), he introduced unconventional concepts including floating thin-film devices for water splitting and carbon dioxide reduction, pixelated devices for long term hydrogen production, or integrated thermoelectric modules for solar waste heat harvesting. As a visiting Winton Fellow in the group of Prof. Peidong Yang at the University of California, Berkeley (2022), he expanded the reaction scope of these systems further to value-added hydrocarbons and organic oxidation products.
Sophia Haussener is a Professor heading the Laboratory of Renewable Energy Science and Engineering at the Ecole Polytechnique Federale de Lausanne (EPFL). Her current research is focused on providing design guidelines for thermal, thermochemical, and photoelectrochemical energy conversion reactors through multi-physics modelling and experimentation. Her research interests include: thermal sciences, fluid dynamics, charge transfer, electro-magnetism, and thermo/electro/photochemistry in complex multi-phase media on multiple scales. She received her MSc (2007) and PhD (2010) in Mechanical Engineering from ETH Zurich. She was a postdoctoral researcher at the Joint Center of Artificial Photosynthesis (JCAP) and the Lawrence Berkeley National Laboratory (LBNL) between 2011 and 2012. She has published over 70 articles in peer-reviewed journals and conference proceedings, and 2 books. She has been awarded the ETH medal (2011), the Dimitris N. Chorafas Foundation award (2011), the ABB Forschungspreis (2012), the Prix Zonta (2015), the Global Change Award (2017), and the Raymond Viskanta Award (2019), and is a recipient of a Starting Grant of the Swiss National Science Foundation (2014).