| SURFACE STUDIES ON A YBa_2Cu_3O_(6～7) CATALYST FOR CO_2 HYDROGENATION TO METHANOL |
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| 引用本文： | 高利珍,李基涛,严前古,梁翼红,于作龙.SURFACE STUDIES ON A YBa_2Cu_3O_(6～7) CATALYST FOR CO_2 HYDROGENATION TO METHANOL[J].天然气化学杂志,1998,7(3):223-228. |
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| 作者姓名： | 高利珍 李基涛 严前古 梁翼红 于作龙 |
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| 作者单位： | 中国科学院成都有机化学研究所，厦门大学化学系固体表面物理化学国家重点实验室 |
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| 摘 要： | 研究了ＹＢａ２Ｃｕ３Ｏ６～７超导催化剂上ＣＯ２的加氢反应。应用ＴＰＤ、ＴＰＲ、ＳＥＭ和原位ＦＴＩＲ等技术对催化剂进行表征发现，ＣＯ２极易吸附到ＹＢａ２Ｃｕ３Ｏ６～７催化剂的氧空位上。反应过的催化剂易被还原。反应的中间物种是醛基和甲酸根。根据ＦＴＩＲ结果提出甲醇是ＣＯ２和Ｈ２反应的直接产物，ＣＯ２＋Ｈ２→ＣＨ３ＯＨ＋Ｈ２Ｏ和ＣＯ２＋Ｈ２→ＣＯ＋Ｈ２Ｏ是体系中存在的平行反应
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| 关 键 词： | CO_2加氢 YBa_2Cu_3O_(6～7)超导催化剂 原位FTIR 中间物种 |
SURFACE STUDIES ON A YBa2Cu3O6-7 CATALYST FOR CO2 HYDROGENATION TO METHANOL |
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| Lizhen Gao,Jitao Li,Qiangu Yan,Yihong Liang,Zuolong Yu.SURFACE STUDIES ON A YBa2Cu3O6-7 CATALYST FOR CO2 HYDROGENATION TO METHANOL[J].Journal of Natural Gas Chemistry,1998,7(3):223-228. |
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| Authors: | Lizhen Gao Jitao Li Qiangu Yan Yihong Liang Zuolong Yu |
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| Institution: | Chengdu Institute of Organic Chemistry, The Chinese Academy of Sciences Chengdu, Sichuan 610041; Department of Chemistry and State Key Laboratory, Xiamen University |
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| Abstract: | CO 2 hydrogenation over a YBaCu3O6-7 catalyst has been investigated. TPD, TPR, in situ FTIR and SEM techniques have been used to characterize the surface of the YBaCu3O6-7. It is shown that CO 2 was easily adsorbed at oxygen vacancies of the YBaCu3O6-7. The used YBaCu3O6-7 was easily to be further reduced. CO2 hydrogenation reaction intermediates were methoxy and aldehyde groups. Based on FTIR results, we propose that methanol may form directly from CO. |
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| Keywords: | CO2 hydrogenation methanol YBaCu3O6-7 catalyst in situ FTIR |
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