Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 366, Issue -, Pages 27-33Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2018.01.035
Keywords
Photocathode; Water splitting; Copper (I) oxide; Hydrogenase; Photoelectrochemical cell
Categories
Funding
- Stiftelsen Olle Engkvist Byggmastare [2015/456]
- J. Gust. Richert Stiftelse [2016-00231]
- Swedish Energy Agency [111674-8]
- Swedish Research Council, VR [621-2014-5670]
- Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning, Formas [213-2014-880]
- ERC [714102]
- foundation Kung Karl XVI Gustafs 50-ars-fond for vetenskap, miljo och teknik
- Wenner-Gren foundations
- China Scholarship Council (CSC)
- European Research Council (ERC) [714102] Funding Source: European Research Council (ERC)
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A Cu2O-ZnO-hydrogenase photocathode possessed enzyme/semiconductor junction has been constructed by immobilizing a biological protein catalyst, hydrogenase-CrHydA1 enzyme on the ZnO protected Cu2O electrode. With light illumination, a photocurrent of 0.8 mA/cm(2) at 0.15 V vs. RHE was obtained and hydrogen was successfully detected from the photocathode in photoelectrochemical measurements with Faradaic efficiency of ca. 1%. The construction as well as the stability of the system are also reported. The result shows that this biohybrid photocathode is capable of photocatalytic proton reduction under mild conditions. (C) 2018 Published by Elsevier B.V.
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