Air electrode catalyst

摘要

This invention proposes metal complexes of polyphenylenediamines as the precursors of carbonized materials used as the air electrode catalysts. Method of production includes mixing phenylenediamine monomer with a catalyst carrier in a solvent, and adding an oxidant with metal salt to produce a metal complex of polyphenylenediamine. After drying the precursor is heat treated in the temperature range 400 C.°-1000 C.° in nitrogen. Then the catalyst is leached and heat treated once again. In a modified procedure the heat treatment is carried out in air while leaching and subsequent thermal treatment are eliminated. The catalyst has demonstrated high performance and stability as the component of the air electrode of a metal-air battery.

主权项

1. A method of producing a catalyst that includes following steps
a. deposition of the precursor on the catalyst support b. drying c. heating in the temperature range 700° C.-1000° C.
whereinthe deposition of the precursor on the catalyst support is carried out by:1) forming a mixture of a catalyst carrier with phenylenediamine in a liquid2) adding solution of an oxidant mixed with a metal salt to the mixture prepared in previous step.