催化学报 ›› 2019, Vol. 40 ›› Issue (11): 1679-1685.DOI: 10.1016/S1872-2067(19)63316-4

• 论文 • 上一篇    下一篇

氮掺杂碳上单原子锌:CO2固定和转化的高效稳定催化剂

Xinjiang Cuia, Xingchao Daib, Annette-Enrica Surkusa, Kathrin Jungea, Carsten Kreyenschultea, Giovanni Agostinia, Nils Rockstroha, Matthias Bellera   

  1. a 莱布尼茨催化研究所, 罗斯托克 18059, 德国;
    b 中国科学院兰州化学物理研究所绿色化学与催化中心, 羰基合成与选择氧化国家重点实验室, 甘肃兰州 730000, 中国
  • 收稿日期:2019-01-21 修回日期:2019-01-27 出版日期:2019-11-18 发布日期:2019-09-06
  • 通讯作者: Matthias Beller
  • 基金资助:
    国家重点研发计划(2017YFA0403103);梅克伦堡-西波美拉尼亚州和德国联邦教育和研究部项目资助

Zinc single atoms on N-doped carbon: An efficient and stable catalyst for CO2 fixation and conversion

Xinjiang Cuia, Xingchao Daib, Annette-Enrica Surkusa, Kathrin Jungea, Carsten Kreyenschultea, Giovanni Agostinia, Nils Rockstroha, Matthias Bellera   

  1. a Leibniz-Institut für Katalyse e.V. Albert-Einstein-Str. 29a, 18059 Rostock, Germany;
    b State Key Laboratory for Oxo Synthesis and Selective Oxidation, Centre for Green Chemistry and Catalysis, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China
  • Received:2019-01-21 Revised:2019-01-27 Online:2019-11-18 Published:2019-09-06
  • Contact: Matthias Beller
  • Supported by:
    This work was supported by the National Key R&D Program of China (2017YFA0403103), the state of Mecklenburg-Vorpommern and the Bundesministerium für Bildung und Forschung.

摘要: 环氧化合物与CO2环加成反应是环状碳酸酯合成和CO2利用的一种直接的原子经济方法,目前主要采用均相金属络合物催化此类转化反应.本文报道了一种新型多相Zn基催化剂,它可方便地通过热解活性炭负载的邻菲啰啉络合Zn(OAc)2而得到.详细的结构表征证实该材料中存在单原子Zn活性位.与Zn基纳米粒子催化剂相比,本文制备的单原子Zn催化剂在环氧化物环加成反应中表现出更高的活性和稳定性.采用该优化的催化剂成功地以高产率得到了一系列碳酸酯,该催化剂具有较好的基团容忍性.

关键词: 多相催化, 单原子催化剂, 锌, 二氧化碳, 环加成, 碳酸酯

Abstract: The cycloaddition of epoxides and carbon dioxide represents a straightforward and atom-efficient method for synthesis of cyclic carbonates and utilization of CO2. So far, homogeneous metal complexes have been mainly applied for such transformations. Here, we describe the synthesis of novel heterogeneous Zn-based catalysts, which were conveniently prepared by pyrolysis of an active-carbon-supported phenanthroline-ligated Zn(OAc)2 complex. Detail structural characterizations proved the existence of single zinc sites in the active material. Compared to a Zn-based nanoparticle (Zn-NP) catalyst, the resulting single metal atom catalyst (SAC) displayed improved activity and stability for the cycloaddition of epoxides. By applying the optimal catalyst, a variety of carbonates were successfully obtained in high yields with good functional group tolerance.

Key words: Heterogeneous catalysis, Single atom catalyst, Zinc, Carbon dioxide, Cycloaddition, Carbonate