| 原位红外光谱研究镧对负载钯催化剂上甲醇车尾气氧化机理的影响 |
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| 引用本文： | 万颖,王幸宜,卢冠忠.原位红外光谱研究镧对负载钯催化剂上甲醇车尾气氧化机理的影响[J].高等学校化学学报,2001,22(2):276-279. |
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| 作者姓名： | 万颖 王幸宜 卢冠忠 |
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| 作者单位： | 华东理工大学工业催化研究所, 上海 200237 |
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| 基金项目： | 上海市高等学校青年教师学术基金!(批准号 :96JG0 5 0 5 1)资助 |
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| 摘 要： | 在色谱微反装置上考察了负载Pd催化剂的甲醇深度氧化性能.结果表明,在γ氧化铝载体中,添加镧对负载Pd催化剂催化活性和选择性影响较大,甲醇氧化含氧中间物含量大大降低.利用insituFTIR技术测定了镧改性后的负载Pd催化剂表面的吸附物种和表面的程序升温反应,对负载Pd催化剂甲醇深度氧化反应机理进行了探讨.
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| 关 键 词： | 负载钯催化剂 甲醇氧化 镧 In-situ FTIR |
| 文章编号： | 0251-0790（2001）02-0276-04 |
| 收稿时间： | 2000-03-08 |
In Situ FTIR Study of Effect of La on CH3OH Automobile Exhaust Oxidation Mechanism on Supported Palladium Catalyst |
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| WAN Ying,WANG Xing-yi,LU Guan-zhong.In Situ FTIR Study of Effect of La on CH3OH Automobile Exhaust Oxidation Mechanism on Supported Palladium Catalyst[J].Chemical Research In Chinese Universities,2001,22(2):276-279. |
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| Authors: | WAN Ying WANG Xing-yi LU Guan-zhong |
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| Institution: | Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | The performance of deep oxidation of methanol on 0.1% Pd supported on alumina was studied by a chromatograph-micro-reactor. The results showed that the addition of La into γ-Al2O3 could affect the performance of Pd catalyst greatly. Although the presence of La could not lower the light-off temperature of methanol oxidation, the partial oxidation products disappeared. By using in-situ FTIR, it is shown that La changed the adsorbed species and the methanol deep oxidation mechanism on Pd catalyst. |
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| Keywords: | Supported palladium catalyst Methanol oxidation Lanthanum In-situ FTIR |
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