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研究论文

摘要：GdFeO₃用柠檬酸络合法制备。用XRD测定GdFeO₃为钙钛矿结构,用CO还原脉冲及用O₂再氧化脉冲证实在GdFeO₃上CO氧化为Redox机理,用外循环流动无梯度反应器研究了CO氧化稳态动力学。用正文设计法估计动力学方程中的参数,还原催化剂再氧化为控制步骤。

Abstract：GdFeO₃ was prepared by the compplex method with citric acid .The perovskite struc-ture for GdFeO₃ was determined with XRD. The Redox mechanism for oxidationof CO wasproven by the pulse method of reduction with CO and reoxidation with O₂ over GdFeO₃ cata-lyst.The steady-state kinetic of oxidation for CO was inverstigated with external circulationflow reactor, The parameters of kinetic equation were estimated by the method of orthogo-nala design. The control step is the reoxidation of reduced catalyst.