Conductivity and CO Methanation Activity of LaNiO3

Abstract

Abstract: In this paper, the single phase of polycrystal perovskite-type oxide, LaNiO₃, which was prepared by decomposition of nitrates at 800℃, was characterized by X-ray diffractionThe resistivity of LaNiO₃ was measuredIt was found that the resistivity of LaNiO₃ was lower than that of the mixed oxides of La and Ni, but higher than that of metal nickelIt was suggested that LaNiO₃ is a semi-metalThe activity order for catalysing COmethanation is metal nickel> LaNiO₃>NiO, which corresponds to that of their conductivities and their localized degree of d electrons in nickel atoms or ions.

Key words: LaNiO₃, Conductivity, CO rnethanation

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SHEN Yue-nian, HU Rui-sheng, LIU Xin-hua, HUANG Wen-de, SHENG Shi-shan. Conductivity and CO Methanation Activity of LaNiO₃[J]. Chem. J. Chinese Universities, 1992, 13(2): 235.

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Conductivity and CO Methanation Activity of LaNiO₃

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