化工进展 ›› 2019, Vol. 38 ›› Issue (01): 315-323.DOI: 10.16085/j.issn.1000-6613.2018-1106

• 工业催化 • 上一篇    下一篇

高比表面积二氧化锆的合成及其催化应用

朱杰(),李文慧,刘邦荐,慕旻辰,郭新闻()   

  1. 大连理工大学化工学院,宾州-大连联合能源研究中心,精细化工国家重点实验室,辽宁 大连 116024
  • 收稿日期:2018-05-29 修回日期:2018-10-12 出版日期:2019-01-05 发布日期:2019-01-05
  • 通讯作者: 郭新闻
  • 作者简介:朱杰(1994—),男,博士研究生,研究方向为多孔材料。E-mail:<email>dut_zj@163.com</email>。|郭新闻,教授,博士生导师,研究方向为多孔材料、新催化反应及工艺。E-mail:<email>guoxw@dlut.edu.cn</email>。
  • 基金资助:
    国家重点研发计划(2016YFB0600902-5);国家重点研发计划(2016YFB0600902-5)。

Preparation of high-surface-area ZrO2 and its application in catalysis

Jie ZHU(),Wenhui LI,Bangjian LIU,Minchen MU,Xinwen GUO()   

  1. State Key Laboratory of Fine Chemicals,PSU-DUT Joint Center for Energy Research,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China
  • Received:2018-05-29 Revised:2018-10-12 Online:2019-01-05 Published:2019-01-05
  • Contact: Xinwen GUO

摘要:

二氧化锆(ZrO2)是一种优异的催化材料,同时具有表面酸碱性,易产生氧空位,耐高温、抗腐蚀,机械强度高。然而传统方法合成的二氧化锆比表面积和孔容较小,限制了其应用。本文介绍了近年来高比表面积多孔二氧化锆的合成方法和技术,包括模板法、MOF热解法、静电纺丝等以及提高其热稳定性的措施,同时简述了其在催化领域的应用。研究表明,此类高比表面积的二氧化锆可以提高负载金属分散度,加强金属-载体相互作用,进而提高催化剂活性和稳定性,同时其粒径大小、形貌、孔结构均会影响其催化性能。高效低成本合成热稳定的高比表面积二氧化锆并对对其形貌和结构进行精准调控,将使其未来具有更广的催化应用前景。

关键词: 二氧化锆, 比表面积, 催化, 多孔材料, 纳米材料

Abstract:

Zirconium dioxide (ZrO2) is an excellent catalytic material, due to its high-temperature resistance, corrosion resistance and high mechanical strength. Besides, it has both acid and basic sites on the surface and is able to produce oxygen vacancy. However, ZrO2 prepared by conventional methods has low surface area and pore volume, which may limit its broad applications. The recent preparation methods or techniques of high-surface-area ZrO2, including templating methods, MOF pyrolysis, and electrostatic spinning,so as to improve its thermal stability and to extend its applications in catalysis are reviewed. The studies showed that the porous ZrO2 can improve the dispersion of the supported metal and the metal-support interaction, giving rise to the enhanced activity and stability of the catalysts. Meanwhile, its particle size, morphology and pore structure also have effects on the catalytic performance. The high-efficient and low-cost preparation methods of thermal stable high-surface-area ZrO2, and the accurate regulation of its morphology or structure, will give it a broader catalytic application prospect in the future.

Key words: zirconium dioxide(ZrO2), specific surface area, catalysis, porous materials, nanomaterials

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