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BPN672: Solar Hydrogen Production by Photocatalytic Water Splitting

Project ID BPN672
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Start Date Wed 2012-Feb-01 08:37:34
Last Updated Wed 2014-Aug-13 10:31:29
Abstract Hydrogen is a promising, environmentally-friendly fuel source for replacing fossil fuels in transportation and stationary power applications. Currently, most hydrogen is produced from non-renewable sources including natural gas, oil, and coal. Photoelectrochemical (PEC) water splitting is a new renewable energy technology that aims to generate hydrogen from water using solar energy. When light is absorbed by the photocatalyst, an electron-hole pair is generated that interacts with water molecules in a surface reduction-oxidation reaction to decompose the water into hydrogen and oxygen. The current challenge in PEC water splitting is finding low-cost, stable materials with good visible light absorption and high efficiency for water splitting. Silicon has demonstrated promising capabilities as photocatalysts due to its high visible light absorption, low cost, and high abundance. This project aims to improve the performance of silicon for water splitting by developing new high-surface area silicon photoelectrodes using chemical vapor deposition silicon.
Status Continuing
Funding Source KAUST
IAB Research Area NanoTechnology: Materials, Processes & Devices
Researcher(s) Roseanne H. Warren, Emmeline Kao
Advisor(s) Liwei Lin
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