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ＧｄＦｅＯ＿３用柠檬酸络合法制备．用ＸＲＤ测定ＧｄＦｅＯ＿３为钙钛矿结构，用ＣＯ还原脉冲及用Ｏ＿２再氧化脉冲证实在ＧｄＦｅＯ＿３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．
GdFeO_3 is prepared by citric acid complexation. The structure of GdFeO_3 was determined by XRD, and the oxidation of CO on GdFeO_3 to Redox was confirmed by CO reduction pulse and O_2 reoxidation pulse. The steady-state kinetics of CO oxidation was studied by external circulation flow gradientless reactor. Using the text design method to estimate the parameters in the kinetic equation, the reduction catalyst reoxidizes to the control step.