Photoelectrochemical reduction of aqueous protons with a CuO|CuBi2O4 heterojunction under visible light irradiation.

نویسندگان

  • Hyun S Park
  • Chong-Yong Lee
  • Erwin Reisner
چکیده

A p-type heterojunction photoelectrode consisting of platinized CuBi2O4 layered on a CuO film was prepared. The CuO|CuBi2O4|Pt electrode photo-generates H2 in pH neutral aqueous solution during visible light irradiation and exhibits a substantially enhanced photocurrent compared to CuO|Pt and CuBi2O4|Pt electrodes. Reduced electron-hole recombination by the band offsets in the heterostructure is responsible for the improved photoelectrochemical performance of CuO|CuBi2O4 with a small band-gap of approximately 1.5 eV.

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عنوان ژورنال:
  • Physical chemistry chemical physics : PCCP

دوره 16 41  شماره 

صفحات  -

تاریخ انتشار 2014