Highly Tunable Selectivity for Syngas‐Derived Alkenes over Zinc and Sodium‐Modulated Fe<sub>5</sub>C<sub>2</sub> Catalyst

  • Peng Zhai
    Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
  • Cong Xu
    School of Chemical Engineering Beijing Institute of Petrochemical Technology Beijing 102617 China
  • Rui Gao
    State Key Laboratory of Coal Conversion Institute of Coal Chemistry, Chinese Academy of Sciences P.O. Box 165 Taiyuan Shanxi 030001 P.R. China
  • Xi Liu
    State Key Laboratory of Coal Conversion Institute of Coal Chemistry, Chinese Academy of Sciences P.O. Box 165 Taiyuan Shanxi 030001 P.R. China
  • Mengzhu Li
    Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
  • Weizhen Li
    Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
  • Xinpu Fu
    Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering Shandong University Jinan 250100 China
  • Chunjiang Jia
    Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering Shandong University Jinan 250100 China
  • Jinglin Xie
    Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
  • Ming Zhao
    School of Chemical Engineering Beijing Institute of Petrochemical Technology Beijing 102617 China
  • Xiaoping Wang
    State Key Laboratory of Coal Conversion Institute of Coal Chemistry, Chinese Academy of Sciences P.O. Box 165 Taiyuan Shanxi 030001 P.R. China
  • Yong‐Wang Li
    State Key Laboratory of Coal Conversion Institute of Coal Chemistry, Chinese Academy of Sciences P.O. Box 165 Taiyuan Shanxi 030001 P.R. China
  • Qianwen Zhang
    School of Chemical Engineering Beijing Institute of Petrochemical Technology Beijing 102617 China
  • Xiao‐Dong Wen
    State Key Laboratory of Coal Conversion Institute of Coal Chemistry, Chinese Academy of Sciences P.O. Box 165 Taiyuan Shanxi 030001 P.R. China
  • Ding Ma
    Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering Peking University Beijing 100871 China

Description

<jats:title>Abstract</jats:title><jats:p>Zn‐ and Na‐modulated Fe catalysts were fabricated by a simple coprecipitation/washing method. Zn greatly changed the size of iron species, serving as the structural promoter, while the existence of Na on the surface of the Fe catalyst alters the electronic structure, making the catalyst very active for CO activation. Most importantly, the electronic structure of the catalyst surface suppresses the hydrogenation of double bonds and promotes desorption of products, which renders the catalyst unexpectedly reactive toward alkenes—especially C<jats:sub>5+</jats:sub> alkenes (with more than 50% selectivity in hydrocarbons)—while lowering the selectivity for undesired products. This study enriches C<jats:sub>1</jats:sub> chemistry and the design of highly selective new catalysts for high‐value chemicals.</jats:p>

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