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Engineering the surface of perovskite La(0.5)Sr(0.5)MnO3 for catalytic activity of CO oxidation
Keke Huang1, Xuefeng Chu, Long Yuan
1State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China. shfeng@mail.jlu.edu.cn.
Abstract:
A simple treatment of La0.5Sr0.5MnO3 with diluted HNO3 creates more B-sites (rich) on the terminated perovskite surface and improves its catalytic activity toward CO oxidation, and the perovskite catalyst possesses a higher ratio of Mn(4+)/Mn(3+) and thus enhances the O2 adsorption capability, favourable for CO oxidation and catalytic activity.
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