| CO2加H2合成甲醇Cu－Zn－O催化剂表面化学态研究 |
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| 引用本文： | 许勇,卢冠忠,汪仁. CO2加H2合成甲醇Cu－Zn－O催化剂表面化学态研究[J]. 高等学校化学学报, 1994, 15(4): 580 |
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| 作者姓名： | 许勇 卢冠忠 汪仁 |
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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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| 摘 要： | 应用XRD、ESR、URDS、XPS及XAES等手段研究了CO2加H2合成甲醇Cu-Zn-O催化剂在还原后和反应状态下的表面化学状态,结果表明,在还原及反应状态下,催化剂表面仅能检测到Cu0,而未发现稳定的Cu2+和Cu+存在;ZnO被部分还原产生低价锌Zn2-δ(0<δ<2).关联活性测试结果认为,Cu0/Zn(2-δ)+O构成CO2加H2合成甲醇反应的活性中心。
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| 关 键 词： | CO2+H2 合成甲醇 Cu－Zn－O催化剂 活性中心 |
| 收稿时间： | 1993-06-07 |
Studies on the Surface Chemical State of Cu-Zn-O Catalyst for Methanol Synthesis from Carbon Dioxide with Hydrogen |
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| XU Yong,LU Guan-Zhong,WANG Ren. Studies on the Surface Chemical State of Cu-Zn-O Catalyst for Methanol Synthesis from Carbon Dioxide with Hydrogen[J]. Chemical Research In Chinese Universities, 1994, 15(4): 580 |
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| Authors: | XU Yong LU Guan-Zhong WANG Ren |
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| Affiliation: | Research Institutc of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237 |
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| Abstract: | XRD,ESR,UDRS,XPS and XAES have been used to examine the surface chemical state of Cu-Zn-Ocatalyst for methanol synthesis from carbon dioxide and hydrogen after the reduction and under the reaction conditions.The results show that only Cu0 on surface of the catalyst was found, no stable Cu2+ and Cu+ exist; a part of ZnO is reduced to produce lower valence Zn(2-δ)+(0<δ<2).And Cu0 and Zn(2-δ)+ is thought to be the active center of methanol synthesis reaction from carbon dioxide and hydrogen according to the activity measurement results. |
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| Keywords: | CO_2+H_2 Methanol synthesis Copper-zinc-oxygen catalyst Active center |
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