Hydrogen evolution by a photoelectrochemical cell based on a Cu 2 O-ZnO-[FeFe] hydrogenase electrode [Elektronisk resurs]

• 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/cm2 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. 

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Natural Sciences  (hsv)

Chemical Sciences  (hsv)

Naturvetenskap  (hsv)

Kemi  (hsv)

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government publication  (marcgt)