| 摘要 |
Electroconductive substrates are coated with substituted cobalt oxide spinels conforming substantial to the empirical formula MxZyCO3-(x+y)O4 wherein M comprises at least one metal from the Groups IB, IIA, IIB, and Z comprises at least one metal from Group IA, where x is greater than zero but not greater than one, where y is equal to or greater than zero but not greater than 0.5, and where x plus 2y is greater than 0 but not greater than 1. The composites are prepared by thermally oxidizing metal oxide precursors in-situ on the substrate, including, optionally, modifier metal oxide materials as a separate dispersed phase in the contiguous spinel structure. |
