Characterization of NiO nanoparticle coating on YSZ powder prepared by precipitation

초록

NiO nanoparticle coating on YSZ particles was prepared by precipitation using Ni(NO3)2(center dot)6H(2)O solution. The coated powder was calcined in air at temperatures between 300 degrees C and 800 degrees C. XPS and X-ray line profile analysis were employed to ascertain NiO coating. The growth of NiO crystallites on YSZ particles was significantly retarded during heat treatment. The Williamson-Hall analysis suggested that the retardation of NiO growth was associated with the strain developed by underlying YSZ particles. The results of XPS showed that NiO coating was initially continuous but became discontinuous as the calcination temperature increased.

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