Abstract
A new catalyst dispersion technology to the ceramic body surface is proposed. Ni/(Ni,Mg)O composite was produced by partial reduction of a (Ni,Mg)O solid solution. Ni nanoparticles, whose diameters ranged from 10 nm to 100 nm, were segregated over the (Ni,Mg)O surface. Ni particle size was increased with increasing Ni content of the solid solution. According to the TEM cross-sectional observation, Ni particles were partially embedded in the ceramic substrate. Catalytic experiment was performed. Particles diameter and inter particles distances were uniform even after the experiment. It is inferred that this material have a good thermal resistance and the technology is promising as a new manufacturing process of a high performance catalyst. Research supported by NEDO, under the Synergy Ceramics Project promoted by METI, Japan.
