Nanocarbon Catalysts: Recent Understanding Regarding the Active Sites

Advanced Science

Yumeng Shi¹  Lu‐Hua Zhang¹  Ye Wang²  N. Raveendran Shiju³ 

[1] International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province Institute of Microscale Optoelectronics Shenzhen University Shenzhen 518060 China;Key Laboratory of Material Physics of Ministry of Education School of Physics and Microelectronics Zhengzhou University Zhengzhou 450052 China;Van't Hoff Institute for Molecular Sciences University of Amsterdam P.O. Box 94157 Amsterdam 1090GD The Netherlands;

关键词: edge sites and topological defects;    heteroatom doping;    M–Nx–C;    nanocarbon catalysts;    surface functionalization;   

DOI  :  10.1002/advs.201902126

来源: DOAJ

【 摘 要 】

Abstract Although carbon itself acts as a catalyst in various reactions, the classical carbon materials (e.g., activated carbons, carbon aerogels, carbon black, carbon fiber, etc.) usually show low activity, stability, and oxidation resistance. With the recent availability of nanocarbon catalysts, the application of carbon materials in catalysis has gained a renewed momentum. The research is concentrated on tailoring the surface chemistry of nanocarbon materials, since the pristine carbons in general are not active for heterogeneous catalysis. Surface functionalization, doping with heteroatoms, and creating defects are the most used strategies to make efficient catalysts. However, the nature of the catalytic active sites and their role in determining the activity and selectivity is still not well understood. Herein, the types of active sites reported for several mainstream nanocarbons, including carbon nanotubes, graphene‐based materials, and 3D porous nanocarbons, are summarized. Knowledge about the active sites will be beneficial for the design and synthesis of nanocarbon catalysts with improved activity, selectivity, and stability.

【 授权许可】

Unknown