Oxidative energy storage ability of a TiO2-Ni(OH)2 bilayer photocatalyst

Yukina Takahashi, Tetsu Tatsuma

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

A TiO2-coated indium tin oxide electrode was further coated with Ni(OH)2 by electrodeposition to obtain a TiO2-Ni(OH) 2 bilayer film. Upon irradiation of the bilayer film with UV light in a pH 10 buffer, the Ni(OH)2 layer was oxidized, and it turned from colorless to brown; oxidative energy was stored in the layer. The potential of the oxidative energy thus stored was about +0.7 V versus Ag|AgCl. The stored energy could be reversibly taken out of the film by chemical and electrochemical means. The photooxidized Ni(OH)2 was rereduced by alcohols, aldehydes, phenol, I-, H2O2, formate, and acetone.

Original languageEnglish
Pages (from-to)12357-12361
Number of pages5
JournalLangmuir
Volume21
Issue number26
DOIs
Publication statusPublished - Dec 20 2005

Fingerprint

energy storage
Photocatalysts
Energy storage
formic acid
formates
Acetone
Phenol
Tin oxides
Aldehydes
aldehydes
Electrodeposition
electrodeposition
Ultraviolet radiation
indium oxides
phenols
Indium
acetone
tin oxides
Phenols
energy

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Oxidative energy storage ability of a TiO2-Ni(OH)2 bilayer photocatalyst. / Takahashi, Yukina; Tatsuma, Tetsu.

In: Langmuir, Vol. 21, No. 26, 20.12.2005, p. 12357-12361.

Research output: Contribution to journalArticle

Takahashi, Yukina ; Tatsuma, Tetsu. / Oxidative energy storage ability of a TiO2-Ni(OH)2 bilayer photocatalyst. In: Langmuir. 2005 ; Vol. 21, No. 26. pp. 12357-12361.
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