Cr-Ag/γ-Al2O3催化剂在CO氧化反应中Ag的助催化作用

引用本文: 陈平, 朱波, 钟依均, 罗孟飞, 李少华, 吴红丽. Cr-Ag/γ-Al₂O₃催化剂在CO氧化反应中Ag的助催化作用[J]. 应用化学, 1996, 13(4): 89-91. shu

Citation: Chen Ping, Zhu Bo, Zhong Yijun, Luo Mengfei, Li Shaohua, Wu Hongli. Promoter Action of Ag on Cr-Ag/γ-Al₂O₃ Catalyst for CO Oxidation[J]. Chinese Journal of Applied Chemistry, 1996, 13(4): 89-91. shu

Cr-Ag/γ-Al₂O₃催化剂在CO氧化反应中Ag的助催化作用

陈平 ^1, ,
朱波 ^1, ,
钟依均 ^1, ,
罗孟飞 ^1, ,
李少华 ^1, ,
吴红丽 ^2,

1.
1. 杭州大学催化研究所杭州 310028;
2.
2. 杭州大学中心实验室杭州 310028

摘要: 催化燃烧是一种消除有机废气污染的有效方法,催化剂是催化燃烧技术的关键之一探求用贱金属催化剂代替贵金属催化剂的研究具有重要的现实意义,并已引起人们广泛的关注.

关键词:

English

Promoter Action of Ag on Cr-Ag/γ-Al₂O₃ Catalyst for CO Oxidation

1.
1. Catalysis Institute, Hangzhou University, Hangzhou 310028;
2.
2. Central Laboratory, Hangzhou University, Hangzhou 310028
Received Date: 30 October 1995

Abstract: A series of γ-Al₂O₃-supported Cr-Ag bimetallic and individual mono-metallic catalysts was prepared by wetness impregnation method.The oxidation activity of CO was determined in a gas flow system. The effect of promoter Ag was studied by BET, XRD and TPR. The activity of Cr/γ-Al₂O₃ catalyst for CO oxidation was relatively poor. As the silver loading increased, the temperature of 100% coversion of CO over Ag/γ-Al₂O₃ catalysts decreased rapidly. The oxidation activity of catalyst was evidently enhanced by the addition of Ag, and increased with the content of Ag. The result of TPR showed that Ag could substantially change the reducibility of catalyst, T_M decreased about 75℃,and the oxidation activity of catalyst was promoted.

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Cr-Ag/γ-Al₂O₃催化剂在CO氧化反应中Ag的助催化作用

English

Promoter Action of Ag on Cr-Ag/γ-Al₂O₃ Catalyst for CO Oxidation

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