高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (7): 1296.

• 研究快报 • 上一篇    下一篇

沉淀还原法制备高性能CO2加氢合成甲醇Cu/ZnO/Al2O3催化剂

曹勇1, 陈立芳1, 戴维林1, 范康年1, 吴东2, 孙予罕2   

  1. 1. 复旦大学化学系, 上海市分子催化与创新材料重点实验室, 上海 200433;
    2. 中国科学院山西煤炭化学研究所, 煤转化国家重点实验室, 太原 030001
  • 收稿日期:2003-03-19 出版日期:2003-07-24 发布日期:2003-07-24
  • 通讯作者: 曹勇(1973年出生),男,博士,副教授,从事多相催化和原位光谱研究.E-mail:yongcao@fudan.edu.cn E-mail:yongcao@fudan.edu.cn
  • 基金资助:

    上海市科技发展基金(批准号:0112NM076);煤转化国家重点实验室2002/2003年度开放基金资助

Preparation of High Performance Cu/ZnO/Al2O3 Catalyst for Methanol Synthesis from CO2 Hydrogenation by Coprecipitation-reduction

CAO Yong1, CHEN Li-Fang1, DAI Wei-Lin1, FAN Kang-Nian1, WU Dong2, SUN Yu-Han2   

  1. 1. Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China;
    2. State Key Laboratory of Coal-conversion, Institute of Coal Chemistry of Shanxi, Chinese Academy of Sciences, Taiyuan 030001, China
  • Received:2003-03-19 Online:2003-07-24 Published:2003-07-24

关键词: 沉淀还原法, 碳酸盐共沉淀, 液相化学还原, CO2加氢, 甲醇合成

Abstract: A novel coprecipitation-reduction process has been proposed for preparing highly selective Cu/ZnO/Al2O3 catalysts for methanol synthesis from CO2 hydrogenation. Compared to the catalysts prepared by the conventional method, the new catalysts prepared via the new method exhibit much higher BET surface area and pore size, much smaller crystallite size and higher catalytic activity and selectivity in CO2 hydrogenation to methanol. It is also found that the molar ratio of Cu+ to Cu0 on the surface of the catalyst obtained by coprecipitation-reduction is much higher than that on the reduced catalyst obtained by the conventional method, which could be crucial for its high activity and selectivity for catalytic hydrogenation of CO2 to methanol.

Key words: Coprecipitation-reduction method, Carbonate coprecipitation, Liquid phase chemical reduction, CO2 hydrogenation, Methanol synthesis

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