Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (5): 1430.doi: 10.7503/cjcu20200575

• Review • Previous Articles     Next Articles

Recent Advances in Indium Oxide Based Nanocatalysts for Selective Hydrogenation of CO2

LIU Hanlin1,3, YIN Linlin1,2, CHEN Xifeng1, LI Guodong1,3()   

  1. 1.CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,CAS Center for Excellence in Nanoscience,National Center for Nanoscience and Technology,Beijing 100190,China
    2.College of Chemistry,Zhengzhou University,Zhengzhou 450001,China
    3.School of Nanoscience and Technology,University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2020-08-18 Online:2021-05-10 Published:2021-05-08
  • Contact: LI Guodong E-mail:liguodong@nanoctr.cn
  • Supported by:
    the Strategic Priority Research Program of Chinese Academy of Sciences(XDB36000000);the National Natural Science Foundation of China(21722102);the Beijing Natural Science Foundation, China(2182087);the Youth Innovation Promotion Association of Chinese Academy of Sciences(2016036)

Abstract:

Selective hydrogenation of CO2 not only mitigates the anthropogenic CO2 emission but also produces various carbon compounds that can be used as platform molecules for producing the value-added chemicals and fuels. However, due to the extreme inertness of CO2, the high C—C coupling barrier and the many competing reactions, it is of vital importance to develop the effective nanocatalysts for achieving the activation and transformation of CO2 into diverse products. Recently, In2O3 based nanocatalysts have aroused great interest in CO2 hydrogenation due to their low cost and abundant oxygen vacancies as active sites to adsorb and activate both CO2 and H2. Moreover, by modulating In2O3 with different components, the possible products could be tuned from C1 to C2+ products. To better understand the reaction mechanism and design the potential high-performance nanocatalysts, it is necessary to summarize the recent progress in In2O3 based nanocatalysts for CO2 hydrogenation. In this review, we first summarize the fabrication of different crystal-phase In2O3 samplesand their derivative composites with metal oxides or metal nanoparticles for selective hydrogenation of CO2 into C1 products. Then, we discuss the catalytic hydrogenation of CO2 into diverse C2+ products by In2O3 combined with different zeolites. Finally, we propose the emergent challenges and future developments of selective hydrogenation of CO2 over In2O3 based nanocatalysts. We hope that this review will provide some insights for designing novel In2O3 based nanocatalysts to achieve the hydrogenation of CO2 into the target pro-ducts with high activity, excellent selectivity, and good stability.

Key words: Indium oxide, Defective site, Hybrid nanocatalyst, CO2 hydrogenation, Diverse product

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