Water and carbon capture from seawater and their efficient conversion into fuels
Event details
| Date | 05.06.2024 |
| Hour | 16:00 › 17:00 |
| Speaker | Meng Lin is an assistant professor heading the Solar Energy Conversion and Utilization Laboratory (SECUL) at the Southern University of Science and Technology (SECUL), Shenzhen. He received his PhD (2018) in the mechanical engineering from EPFL, Switzerland. Between 2018 and 2019, he was a postdoctoral researcher at the Joint Center of Artificial Photosynthesis (JCAP) and the Chemistry and Chemical Engineering Division of California Institute of Technology (Caltech). In 2019, he joined the department of mechanical and energy engineering at SUSTech with research focus on the engineering of high-performance solar conversion materials, devices, and systems to fulfill industrial-scale needs for electricity, heat, fuels, or a combination thereof. |
| Location | |
| Category | Conferences - Seminars |
| Event Language | English |
Seawater serves as a vast reservoir of water and carbon, presenting a promising avenue for the conversion of intermittent renewable electricity into storable fuels. This presentation will firstly focuses on solar-driven interfacial evaporation technology, leveraging an advanced multiphysical model to quantify interfacial properties and gain insights into the transport and energy conversion processes, thereby contributing to the advancement of efficient device engineering. Theoretical and experimental showed that an absorption coefficient of 400 m−1 of the photo-absorber is optimal, which pins the interfacial location below the surface to minimize radiation and convection losses. Seawater carbon capture was achieved with a bipolar membrane based electrodialysis (BPMED) cell in cascading with a vapor feed CO2 electrolyzer. Departing from conventional water-splitting reactions, BPMED employs one-electron, reversible redox couples at electrodes to replace the otherwise hydrogen evolution reaction, resulting in CO2 capture with an electrochemical energy consumption of 0.98 kWh kg−1 of CO2 and a capture efficiency of 71%. In a direct-coupled, vapor-fed CO2 reduction cell, an total Faradaic efficiency of up to 95% was achieved for electrochemical CO2 reduction to CO. Finally, I will extend this technology to air capture with a showcase of green methane production from the air. This comprehensive approach underscores the potential of dilute source capture for green fuel production.
Practical information
- Expert
- Free
- This event is internal
Organizer
- LRESE
Contact
- Sophia Haussener