Catalyst for electrochemical reduction of oxygen

Details Catalyst for electrochemical reduction of oxygen Catalyst for electrochemical reduction of oxygen

2011-06-07

2011-06-07

Hailey, Patricia L (Department: 1732)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

C502S184000, C502S216000, C502S218000, C502S220000, C502S221000, C502S223000, C429S523000, C429S526000, C429S532000, C429S534000

Reexamination Certificate

active

07956004

ABSTRACT:
The invention relates to a sulphide catalyst for electrochemical reduction of oxygen particularly stable in chemically aggressive environments such as chlorinated hydrochloric acid. The catalyst of the invention comprises a noble metal sulphide single crystalline phase supported on a conductive carbon essentially free of zerovalent metal and of metal oxide phases, obtainable by reduction of metal precursor salts and thio-precursors with a borohydride or other strong reducing agent.

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patent: 2008/0121520 (2008-05-01), Gulla et al.
Reeve et al., “Methanol Tolerant Oxygen Reduction Catalysts Based on Transition Metal Sulfides”, J. Electrochem. Soc., vol. 145, No. 10, Oct. 1998.

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