Process for the photocatalytic decomposition of water into hydrogen and oxygen
CA 1296672 C · Owner: Bhardwaj, Ramesh C. · Inventors: Bhardwaj, Ramesh C.; Bhardwaj, Chhaya; Khan, Mizra M.T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hydrogen and oxygen are obtained by the photocatalytic decomposition of water by passing light in an inert atmosphere through an aqueous solution of dioxygen complex of rhuthenium and EDTA in which is suspended a semiconductor of hexagonal crystal structure loaded with a noble metal and a transition metal oxide. Hydrogen and oxygen are known to have various uses. Precipitation of the semiconductor material and annealing it at a temperature from 300-350°C result in the semiconductor of hexagonal structure which is suspended in the aqueous solution.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 3, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 3, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.