SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2023, Vol. 55 ›› Issue (3): 222-229.DOI: 10.1016/j.cjche.2022.06.020

• Full Length Article • 上一篇    下一篇

Boron-doped lamellar porous carbon supported copper catalyst for dimethyl oxalate hydrogenation

Peipei Ai, Li Zhang, Jinchi Niu, Huiqing Jin, Wei Huang   

  1. State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
  • 收稿日期:2022-04-13 修回日期:2022-05-30 出版日期:2023-03-28 发布日期:2023-06-03
  • 通讯作者: Peipei Ai,E-mail:aipeipei@tyut.edu.cn;Wei Huang,E-mail:huangwei@tyut.edu.cn
  • 基金资助:
    This work is financially supported by the National Natural Science Foundation of China (22008166), Natural Science Foundation of Shanxi (201901D211047), and Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (2019L0185).

Boron-doped lamellar porous carbon supported copper catalyst for dimethyl oxalate hydrogenation

Peipei Ai, Li Zhang, Jinchi Niu, Huiqing Jin, Wei Huang   

  1. State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
  • Received:2022-04-13 Revised:2022-05-30 Online:2023-03-28 Published:2023-06-03
  • Contact: Peipei Ai,E-mail:aipeipei@tyut.edu.cn;Wei Huang,E-mail:huangwei@tyut.edu.cn
  • Supported by:
    This work is financially supported by the National Natural Science Foundation of China (22008166), Natural Science Foundation of Shanxi (201901D211047), and Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (2019L0185).

摘要: Doping heteroatoms on carbon materials could bring some special advantages for using as catalyst support. In this work, a boron doped lamellar porous carbon (B-LPC) was prepared facilely and utilized as carbon-based support to construct Cu/B-LPC catalyst for dimethyl oxalate (DMO) hydrogenation. Doping boron could make the B-LPC own more defects on surface and bigger pore size than B-free LPC, which were beneficial to disperse and anchor Cu nanoparticles. Moreover, the interaction between Cu species and B-LPC could be strengthened by the doped B, which not only stabilized the Cu nanoparticles, but also tuned the valence of Cu species to maintain more Cu+. Therefore, the B-doped Cu/B-LPC catalyst exhibited stronger hydrogenation ability and obtained higher alcohols selectivity than Cu/LPC, as well as high stability without decrease of DMO conversion and ethylene glycol selectivity even after 300 h of reaction at 240 ℃.

关键词: Hydrogenation, Cu-based catalyst, Boron doping, Porous carbon, Catalyst support, Alcohol

Abstract: Doping heteroatoms on carbon materials could bring some special advantages for using as catalyst support. In this work, a boron doped lamellar porous carbon (B-LPC) was prepared facilely and utilized as carbon-based support to construct Cu/B-LPC catalyst for dimethyl oxalate (DMO) hydrogenation. Doping boron could make the B-LPC own more defects on surface and bigger pore size than B-free LPC, which were beneficial to disperse and anchor Cu nanoparticles. Moreover, the interaction between Cu species and B-LPC could be strengthened by the doped B, which not only stabilized the Cu nanoparticles, but also tuned the valence of Cu species to maintain more Cu+. Therefore, the B-doped Cu/B-LPC catalyst exhibited stronger hydrogenation ability and obtained higher alcohols selectivity than Cu/LPC, as well as high stability without decrease of DMO conversion and ethylene glycol selectivity even after 300 h of reaction at 240 ℃.

Key words: Hydrogenation, Cu-based catalyst, Boron doping, Porous carbon, Catalyst support, Alcohol