Cdznms photocatalyst including cations for water decomposition and preparation thereof and method for producing hydrogen by use of the same
CA 2332544 C · Owner: Park, Dae-Chul · Inventors: Baeg, Jin-Ook; Park, Dae-Chul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Present invention relates to a CdZnMS photocatalyst for producing hydrogen from water, and a method for preparing thereof and a method for producing hydrogen by using said, photocatalyst. Said photocatalyst is characterized by the following general formula VII:, m(a)/Cd x Zn y M z S VII wherein 'm' represents at least one doped metal element as an electron acceptor selected, from the group consisting of Ni Pt, Ru or the oxidized compound of these metals; 'a', represents a % by weight of m ranging from 0.10 to 5.00; M is a catalyst element selected, from the group consisting of Mo V, Al, Cs, Ti, Mn, Fe, Pd, Pt, P, Cu, Ag Ir, Sb, Pb, Ga and, Re. 'z' represents an atom % of M/(Cd+Zn+M) …
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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
- Filed January 26, 2001 and granted October 28, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 2023.
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