HIGH SPECIFIC SURFACE AREA NICKEL MIXED OXIDE POWDERS LANIO3 (PEROVSKITE) AND NICO2O4 (SPINEL) VIA SOL-GEL TYPE ROUTES FOR OXYGEN ELECTROCATALYSIS IN ALKALINE MEDIA

摘要

A novel sol-gel process of preparation of oxide electrocatalysts is investigated to prepare Ni-containing mixed oxides LaNiO3 and NiCo2O4 at moderate temperatures. High surface area (20-55 m(2) g(-1)) powders and high roughness electrodes (30-1500) were obtained. Apparent and real electrocatalytical activity are compared and discussed. (C) 1995 Academic Press, Inc. [References: 26]