Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (11): 1998-2003.DOI: 10.1016/S1872-2067(12)60649-4

• Communications • Previous Articles     Next Articles

Cu nanoclusters supported on Co nanosheets for selective hydrogenation of CO

Dong Lü, Yan Zhu, Yuhan Sun   

  1. Low-Carbon Conversion Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
  • Received:2013-05-30 Revised:2013-06-27 Online:2013-10-18 Published:2013-10-18
  • Contact: Yan Zhu,Yuhan Sun
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21273151) and the Shell-CAS Frontier Science Foundation (PT19979).

Abstract:

Cu nanoclusters supported on Co nanosheets (denoted Cu/Co) were prepared using lysine as a surfactant template. The shape of the Cu/Co catalyst promotes selective hydrogenation of CO, enhancing CO conversion and the selectivity for higher alcohols, and decreasing methane selectivity, which is in marked contrast to current Cu-Co bimetallic nanoparticle catalysts. The distinct functional interface of the Cu(111) surface with face-centered cubic structure with the Co(100) surface with hexagonal closed-packed structure in the Cu/Co catalyst provides a breakthrough in understanding the catalytic nature of metal-metal interactions. The design of this bimetallic catalyst bridges the gap between model catalysts and realistic catalytic applications, and will ultimately allow us to gain a fundamental understanding of the mechanism of syngas conversion to higher alcohols.

Key words: Copper nanocluster, Cobalt nanosheet, Bimetallic catalyst, Functional interface, Carbon monoxide hydrogenation