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低浓度甲醇完全氧化钙钛矿型La_(1-x)Sr_xMnO_3催化剂研究
Authors
张鸿斌
林国栋
王伟
Publication date
5 January 1999
Publisher
Abstract
采用溶胶-凝胶法制备钙钛矿型复合氧化物La1-xSrxMnO3,研究其对低浓度甲醇完全氧化催化性能.实验结果表明:Sr2+取代量和样品焙烧温度对催化剂活性均有显著影响,以873K焙烧的La0.6Sr0.4MnO3的催化活性为佳;催化剂的BET,XPS,O2-TPD,H2-TPR表征研究结果证实,较大的比表面,较高的表面Mn浓度和氧吸附量都有利于催化剂活性的提高
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Last time updated on 16/06/2016