SmFeO3上CO氧化Redox机理稳态及脉冲动力学

北京大学学报（自然科学版）

SmFeO₃上CO氧化Redox机理稳态及脉冲动力学

张瑞芹,俞启全,金韵

北京大学化学与分子工程学院，北京，100871

收稿日期:1994-12-07 出版日期:1995-11-20 发布日期:1995-11-20

Steady-State and Pulse Kinetics of Redox Mechanism for the Oxidation of CO over SmFeO₃ Catalyst

ZHANG Ruigin, YU Qiquan, JIN Yun

Institute of Chemistry and Molecular Engineering, Peking University, Beijing, 100871

Received:1994-12-07 Online:1995-11-20 Published:1995-11-20

摘要/Abstract

摘要： SmFeO₃用柠檬酸络合法制备。SmFeO₃钙钛矿结构用XRD测定。SmFeO₃的CO脉冲及O₂再氧化脉冲实验证实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。用正交设计法估计Redoo方程中动力学参数。还原步骤动力学服从Bassett-Habgood脉冲方程。

关键词: SmFeO₃催化剂, Redox机理, 脉冲动力学

Abstract: SmFeO₃ was prepared by the complexation method of citric acid. The perovskite structure of SmFeO₃ was determinated by XRD. The Redoxmechanism for the oxidation of CO was proven by the pulse method of reduction with CO and reoxidation with O₂ over SmFeO₃ catalyst. The steady-state kinetics of oxidation for CO over SmFeO₃ has been investi-gated with an external circulation flow reactor. The parameters of Redox equation were estimated by the method of orthogonol design. The kinetic equation of the reduction stage obeys the Bassett-Habgood equation of pulse method.

Key words: SmFeO₃ catalyst, redox mechanism, pulse kinetics

中图分类号:

O643.31

张瑞芹,俞启全,金韵. SmFeO₃上CO氧化Redox机理稳态及脉冲动力学[J]. 北京大学学报（自然科学版）.

ZHANG Ruigin,YU Qiquan,JIN Yun. Steady-State and Pulse Kinetics of Redox Mechanism for the Oxidation of CO over SmFeO₃ Catalyst[J]. Acta Scientiarum Naturalium Universitatis Pekinensis.

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https://xbna.pku.edu.cn/CN/Y1995/V31/I6/718

SmFeO₃上CO氧化Redox机理稳态及脉冲动力学

Steady-State and Pulse Kinetics of Redox Mechanism for the Oxidation of CO over SmFeO₃ Catalyst

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