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Platinum and Frustrated Lewis Pairs on Ceria as Dual-Active Sites for Efficient Reverse Water-Gas Shift Reaction at Low Temperatures  期刊论文   WOS高被引论文

  • 编号:
    CAE1AD5713089439D618EE19434E7A1C
  • 作者:
  • 语种:
    英文
  • 期刊:
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION ISSN:1433-7851 2023 年 62 卷 37 期 ; SEP 11
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  • 关键词:
  • 摘要:

    The low-temperature reverse water-gas shift (RWGS) reaction faces the following obstacles: low activity and unsatisfactory selectivity. Herein, the dual-active sites of platinum (Pt) clusters and frustrated Lewis pair (FLP) on porous CeO2 nanorods (Pt-cluster/PN-CeO2) provide an interface-independent pathway to boost high performance RWGS reaction at low temperatures. Mechanistic investigations illustrate that Pt clusters can effectively activate and dissociate H-2. The FLP sites, instead of the metal and support interfaces, not only enhance the strong adsorption and activation of CO2, but also significantly weaken CO adsorption on FLP to facilitate CO release and suppress the CH4 formation. With the help of hydrogen spillover from Pt to PN-CeO2, the Pt-cluster/PN-CeO2 catalysts achieved a CO yield of 29.6 %, which is very close to the thermodynamic equilibrium yield of CO (29.8 %) at 350 & DEG;C. Meanwhile, the Pt-cluster/PN-CeO2 catalysts delivered a large turnover frequency of 8720 h(-1). Moreover, Pt-cluster/PN-CeO2 operated stably and continuously for at least 840 h. This finding provides a promising path toward optimizing the RWGS reaction.

  • 推荐引用方式
    GB/T 7714:
    Li Wenbin,Gan Jie,Liu Yuxuan, et al. Platinum and Frustrated Lewis Pairs on Ceria as Dual-Active Sites for Efficient Reverse Water-Gas Shift Reaction at Low Temperatures [J].ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2023,62(37).
  • APA:
    Li Wenbin,Gan Jie,Liu Yuxuan,Zou Yong,&Qu Yongquan.(2023).Platinum and Frustrated Lewis Pairs on Ceria as Dual-Active Sites for Efficient Reverse Water-Gas Shift Reaction at Low Temperatures .ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,62(37).
  • MLA:
    Li Wenbin, et al. "Platinum and Frustrated Lewis Pairs on Ceria as Dual-Active Sites for Efficient Reverse Water-Gas Shift Reaction at Low Temperatures" .ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 62,37(2023).
  • 入库时间:
    9/14/2023 1:32:13 AM
  • 更新时间:
    9/14/2023 1:32:13 AM
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