甲醇合成催化剂Cu-Mn/Al_2O_3中锰的助催化作用

Abstract

甲醇合成催化剂Cu-Mn/Al2O3中锰的助催化作用李基涛张伟德高利珍（厦门大学化学系物理化学研究所厦门361005）林建毅陈华毅k.l.TAn（国立新加坡大学物理系0511）关键词甲醇合成Mn的助催化作用活性表面态铜催化剂分类号O643.32甲醇是...

Cu Mn/Al 2O 3 impregnation catalysts were studied with respect to their catalytic activity in the synthesis of methanol.Moreover, TPR, XPS and N 2O decomposition were used For the characterization of catalysts.The experimental results indicated that copper not only was present on the support but also interacted with MnO.Cu(Ⅰ)was Found on the surFace of the catalysts aFter reduction and reaction.The valence of Mn was increased aFter reaction.ThereFore, partial positive charge was obtained by surFace copper through oxygen bridge of Cu…O-Mn.So the capacity of adsorbing CO and H 2 was enhanced on the catalysts.The synthesis of methanol was promoted as a result.