Facile fabrication of an efficient oxynitride TaON photoanode for overall water splitting into H2 and O2 under visible light irradiation

J Am Chem Soc. 2010 Sep 1;132(34):11828-9. doi: 10.1021/ja1016552.

Abstract

The porous oxynitride TaON film electrode prepared on conducting glass (FTO) showed significantly high quantum efficiency (IPCE = ca. 76% at 400 nm at 0.6 V vs Ag/AgCl) in an aqueous Na(2)SO(4) solution, after loading of IrO(2) x nH(2)O nanoparticles as a cocatalyst for water oxidation. Overall water splitting into H(2) and O(2) under visible light was demonstrated using an IrO(2) x nH(2)O-loaded TaON photoanode combined with a Pt electrode under an externally applied bias (0.6-1 V).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electrochemistry
  • Electrodes
  • Hydrogen / chemistry*
  • Iridium / chemistry
  • Light*
  • Membranes, Artificial
  • Oxygen / chemistry*
  • Photochemistry
  • Porosity
  • Quantum Theory
  • Surface Properties
  • Tantalum / chemistry*
  • Water / chemistry*

Substances

  • Membranes, Artificial
  • Water
  • iridium oxide
  • Iridium
  • Tantalum
  • Hydrogen
  • Oxygen