METAL OXIDE ELECTRODE CATALYST
|Posted date||Jul 13, 2011|
|Date of filing||Aug 18, 2005|
|Gazette Date||Feb 23, 2006|
|Gazette Date||Jan 8, 2013|
|Title||METAL OXIDE ELECTRODE CATALYST|
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.
|IPC(International Patent Classification)|
|Reference ( R and D project )||CREST Research and Development of System Technologies for Resource Recycling and Minimum Energy Requirement AREA|
Contact Information for " METAL OXIDE ELECTRODE CATALYST "
- Japan Science and Technology Agency Department of Intellectual Property Management
- URL: http://www.jst.go.jp/chizai/
- Address: 5-3, Yonbancho, Chiyoda-ku, Tokyo, Japan , 102-8666
- Fax: 81-3-5214-8476