Top > Search of International Patents > METAL OXIDE ELECTRODE CATALYST

METAL OXIDE ELECTRODE CATALYST

Foreign code F110004304
File No. A151-16WO
Posted date Jul 13, 2011
Country Canada
Application number 2577471
Gazette No. 2577471
Gazette No. 2577471
Date of filing Aug 18, 2005
Gazette Date Feb 23, 2006
Gazette Date Jan 8, 2013
Priority data
  • P2004-239589 (Aug 19, 2004) JP
  • P2005-093651 (Mar 29, 2005) JP
Title METAL OXIDE ELECTRODE CATALYST
Abstract

A corrosion-resistant electrode catalyst for oxygen reduction is characterized by including a main catalyst composed of at least one transition metal oxide selected from oxygen-deficient ZrO2, Ta2O5, Nb2O5, TiO2, V2O5, MoO3, and WO3 and a co-catalyst composed of gold, the electrode catalyst being used in contact with an acidic electrolyte at a potential at least 0.4 V higher than the reversible hydrogen electrode potential. The catalyst may be used, for example, in such a form that the transition metal oxide in the form of fine particles and gold in the form of fine particles, or fine particles including fine gold particles coated with the transition metal oxide are dispersed on a catalyst carrier which is an electron conductive powder.

This electrode catalyst is suitable as an electrode catalyst for an electrochemical system using an acidic electrolyte in the fields of water electrolysis, inorganic/organic electrolysis, fuel cells, etc.

  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • OTA, KENICHIRO,
  • MITSUSHIMA, SHIGENORI,
  • ISHIHARA, AKIMITSU,
  • YAN, LIU,
  • KAMIYA, NOBUYUKI
IPC(International Patent Classification)
Reference ( R and D project ) CREST Research and Development of System Technologies for Resource Recycling and Minimum Energy Requirement AREA
Please contact us by E-mail or facsimile if you have any interests on this patent.

PAGE TOP

close
close
close
close
close
close