Volume 7 Issue 4
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Fan Zhang, Xiaoying Xu, Zhengpu Qiu, Bo Feng, Yuan Liu, Aihua Xing, Maohong Fan. Improved methanol synthesis performance of Cu/ZnO/Al2O3 catalyst by controlling its precursor structure. Green Energy&Environment, 2022, 7(4): 772-781. doi: 10.1016/j.gee.2020.11.027
Citation: Fan Zhang, Xiaoying Xu, Zhengpu Qiu, Bo Feng, Yuan Liu, Aihua Xing, Maohong Fan. Improved methanol synthesis performance of Cu/ZnO/Al2O3 catalyst by controlling its precursor structure. Green Energy&Environment, 2022, 7(4): 772-781. doi: 10.1016/j.gee.2020.11.027
shu

Improved methanol synthesis performance of Cu/ZnO/Al2O3 catalyst by controlling its precursor structure

doi: 10.1016/j.gee.2020.11.027

  • a National Institute of Clean-and-Low-Carbon Energy, Beijing, 102211, China;

  • b Departments of Chemical and Petroleum Engineering, University of Wyoming, Laramie, WY, 82071, USA

Funds:

D Program of China (2018YFB0604701), the CHN ENERGY Group Corp. Ltd. (CF9300200004). The authors thank Professor Haiquan Su and Jianli Li from Inner Mongolia University for their kind assistances.

This work was supported by the National Key R&

  • Received date 26 July 2020, Accepted date 26 November 2020, RevRecd date 09 November 2020, Publish date 30 November 2020,
    Abstract
  • Methanol, a versatile chemical, fuel additive and potential H2 carrier, has attracted great attention. Despite of the wide industrialization, improvement of Cu-based methanol-synthesis catalysts is highly anticipated. Accordingly, a series of Cu/ZnO/Al2O3 with designed precursor structures were prepared, and its structure-function relationship was investigated to make progress on this area. Results showed the catalyst derived from highly zinc-substituted malachite demonstrated the best catalytic performance in this work. It was found that the well-behaved catalyst possessed relatively high Cu specific surface area and exposed Cu concentration, and the well Cu/ZnO synergy. CuZn alloy was found by In-situ XRD tests, and its effect on the catalyst's thermostability was discussed. Fractional precipitation, which facilitated the Cu2+ substitution by Zn2+ in malachite lattice, could be an efficient preparation method of the Cu/ZnO/Al2O3 catalyst.

     

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