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

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (7): 1296.

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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. 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

Abstract

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

CLC Number:

O634

TrendMD:

CAO Yong, CHEN Li-Fang, DAI Wei-Lin, FAN Kang-Nian, WU Dong, SUN Yu-Han . Preparation of High Performance Cu/ZnO/Al₂O₃ Catalyst for Methanol Synthesis from CO₂ Hydrogenation by Coprecipitation-reduction[J]. Chem. J. Chinese Universities, 2003, 24(7): 1296.

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

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