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Title: Photoelectrochemical water splitting at titanium dioxide nanotubes coated with tungsten trioxide

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.2357878· OSTI ID:20880043
; ;  [1]
  1. Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701 (Korea, Republic of)

The photocatalytic splitting of water into hydrogen and oxygen using solar light is a potentially clean and renewable source for hydrogen fuel. Titanium oxide nanotubes coated with tungsten oxide were prepared to harvest more solar light for the first time and characterized their water splitting efficiency. The tungsten trioxide coatings significantly enhanced the visible spectrum absorption of the titanium dioxide nanotube array, as well as their solar-spectrum induced photocurrents. For the sample, upon white light illumination at 150 mW/cm{sup 2}, hydrogen gas generated at the overall conversion efficiency of 0.87%.

OSTI ID:
20880043
Journal Information:
Applied Physics Letters, Vol. 89, Issue 16; Other Information: DOI: 10.1063/1.2357878; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English