Metal oxide electrode catalyst

H - Electricity – 01 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01M 4/90 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2577471

A corrosion-resistant electrode catalyst for oxygen reduction characterized by comprising a main catalyst formed of at least one transition metal oxide selected from oxygen deficiency-containing ZrO2, Ta2O5, Nb2O5, SnO2, TiO2, V2O5, MoO3, and WO3, and a co-catalyst of gold, the catalyst being adapted for use in contact with an acidic electrolyte at a potential which is at least 0.4 V higher than the reversible hydrogen electrode potential. The catalyst may be used, for example, in such a form that fine particles of the transition metal oxide and gold, or fine particles comprising gold fine 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 field of water electrolysis, inorganic or organic electrolysis, fuel cells and the like.

L~invention porte sur un catalyseur à électrode résistant à la corrosion pour oxydoréduction caractérisé en ce qu~il comprend un catalyseur principal constitué d~au moins un oxyde de métal de transition sélectionné parmi les ZrO2, Ta2O5, Nb2O5, SnO2, TiO2, V2O5, MoO3 et WO3, déficients en oxygène et un co-catalyseur d~or, le catalyseur étant adapté pour s~utiliser au contact d~un électrolyte acidifère à un potentiel d~au moins 0,4 V supérieur au potentiel d~électrode d~hydrogène réversible. Le catalyseur peut servir, par exemple, sous forme telle que de fine particules de l~oxyde de métal de transition et d~or, ou de fines particules comprenant de fines particules d~or revêtues de l~oxyde de métal de transition sont dispersées sur un porte-catalyseur constitué d~une poudre conductrice électronique. Ce catalyseur à électrode convient comme catalyseur d~électrode pour système électrochimique utilisant un électrolyte acidifère dans les domaines de l~électrolyse aqueuse, de l~électrolyse inorganique ou de l~électrolyse organique, des piles à combustible et autres.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Metal oxide electrode catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Metal oxide electrode catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal oxide electrode catalyst will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1409330

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.