高等学校化学学报

• 综合评述 •    

氧化铟基纳米催化剂用于二氧化碳选择性加氢的研究进展

刘瀚林,尹琳琳,陈西凤,李国栋   

  1. 1.中国科学院纳米系统与多级次制造重点实验室, 中国科学院纳米科学卓越创新中心,国家纳米科学中心, 北京 100190
    2.郑州大学化学学院, 郑州 450001
    3.中国科学院大学纳米科学与技术学院, 北京 100049
  • 收稿日期:2020-08-18
  • 基金资助:
    中国科学院战略性先导科技专项(B类)(XDB36000000);国家自然科学基金(批准号(21722102);51672053)、 北京市自然科学基金(2182087);中国科学院青年创新促进会项目(2016036)

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
  • 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)

摘要:

二氧化碳选择性加氢反应不仅能减少二氧化碳排放, 而且能够制备多种含碳产物, 可以作为生产高附加价值化学品与燃料的平台化合物. 然而, 由于二氧化碳的高化学惰性、 碳-碳偶联过程的高能垒和诸多的竞争反应, 开发高效的纳米催化剂以促进二氧化碳的活化并转化为多样性的产物显得至关重要. 最近, 基于氧化铟的纳米催化剂在催化二氧化碳加氢方面受到广泛关注, 主要由于其成本低廉, 且具有丰富的氧缺陷位点, 可有效吸附并活化二氧化碳和氢气. 为深入了解反应机理并设计更高性能的潜在纳米催化剂, 需对氧化铟基纳米催化剂在二氧化碳加氢方面的研究进展进行总结. 本综述首先总结了不同晶型的氧化铟及其与金属氧化物或金属纳米粒子形成的复合催化剂用于催化二氧化碳选择性加氢制备C1产物的性能. 随后, 探讨了氧化铟与不同类型的沸石的复合物用于催化二氧化碳加氢制备C2+产物的性能. 最后, 提出了目前氧化铟基纳米催化剂在催化二氧化碳选择性加氢方面存在的挑战和未来的发展方向. 希望本文能够为设计具有高活性、 高选择性和高稳定性催化二氧化碳加氢的新型氧化铟基纳米催化剂提供一些思路.

关键词: 氧化铟, 缺陷位点, 复合纳米催化剂, 二氧化碳加氢, 多样产物

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 products with high activity, excellent selectivity, and good stability.

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

中图分类号: