Chemical Industry and Engineering Progress ›› 2021, Vol. 40 ›› Issue (6): 3181-3190.DOI: 10.16085/j.issn.1000-6613.2020-1434

• Industrial catalysis • Previous Articles     Next Articles

Research progress of three-dimensional ordered macroporous perovskite metal oxides as highly efficient combustion catalysts

LI Cuicui(), ZHANG Ting, AN Jing, ZENG Jianyou, MA Haixia()   

  1. School of Chemical Engineering, Northwest University, Xi’an 710069, Shaanxi, China
  • Received:2020-07-24 Revised:2020-12-05 Online:2021-06-22 Published:2021-06-06
  • Contact: MA Haixia

三维有序大孔钙钛矿金属氧化物作为高效燃烧催化剂的研究进展

李翠翠(), 张婷, 安静, 曾见有, 马海霞()   

  1. 西北大学化工学院,陕西 西安 710069
  • 通讯作者: 马海霞
  • 作者简介:李翠翠(1994—),女,硕士研究生,研究方向为纳米材料的制备。E-mail:lcc6560141@163.com
  • 基金资助:
    国家自然科学基金(21373161)

Abstract:

Three-dimensional ordered macroporous (3DOM) materials have attracted great interests because of their unique structure, adjustable composition, high stability, high electron transport capability, and high specific surface area. In present work, the applications of 3DOM perovskite catalysts or carriers in the catalytic combustion of soot, volatile organic compounds and methane are introduced. The relationship of preparation conditions and structural characteristics to catalytic performance is discussed. The results show that 3DOM perovskite materials have excellent catalytic combustion stability, high molecular adsorption and diffusion capacity and high oxygen mobility, allowing them to be good combustion catalyst. Moreover, they can significantly decrease the redox temperature and apparent activation energy. Therefore, more novel and cost-effective 3DOM materials should be developed. Additionally, the improvement of the surface properties and the catalytic combustion mechanism of 3DOM materials still need further study.

Key words: three-dimensional ordered macroporous, perovskite, catalyst, carrier, multiphase reaction

摘要:

三维有序大孔(3DOM)材料因为具有独特的结构、可调的组成、高稳定性、高电子传递能力以及高比表面积而引起很多学者的研究兴趣。本文主要介绍了3DOM钙钛矿材料作为催化剂或载体在催化碳烟、挥发性有机物和甲烷燃烧方面取得的成果,分析了制备条件、结构特征对催化性能的影响;指出了3DOM钙钛矿材料具有优异的催化燃烧稳定性、高分子吸附和扩散能力以及高氧迁移率,能够显著降低氧化还原温度和表观活化能,因此可以作为高效燃烧催化剂。最后提出了未来研究重点和发展方向,在未来的研究中应该开发出更多可以与贵金属相媲美的廉价的新型3DOM材料以拓展3DOM材料应用范围。另外,3DOM 材料表面性能的提升以及用于催化燃烧的作用机理需进一步深入研究。

关键词: 三维有序大孔, 钙钛矿, 催化剂, 载体, 多相反应

CLC Number: 

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