化工进展 ›› 2019, Vol. 38 ›› Issue (01): 485-494.DOI: 10.16085/j.issn.1000-6613.2018-1378

• 材料科学与技术 • 上一篇    下一篇

生物模板法制备金属氧化物及其催化应用研究进展

姜霞1,2(),李雯3,郭云龙1,2,王璐1,2,李群1,2,李清彪1,2,3()   

  1. 1. 厦门大学化学化工学院,福建 厦门 361005
    2. 厦门大学醇醚酯化工清洁生产国家工程实验室,福建 厦门 361005
    3. 厦门大学环境与生态学院,福建 厦门 361005
  • 收稿日期:2018-07-05 修回日期:2018-09-29 出版日期:2019-01-05 发布日期:2019-01-05
  • 通讯作者: 李清彪
  • 作者简介:姜霞(1989—),女,博士研究生,研究方向为工业催化。E-mail:<email>xingyu20080923@126.com</email>。|李清彪,教授,博士生导师,研究方向为工业催化、生物化工和环境工程。E-mail:<email>kelqb@xmu.edu.cn</email>。
  • 基金资助:
    国家自然科学基金(21536010);国家自然科学基金(21536010)。

Progress on bio-templated synthesis of metal oxides and their catalytic applications

Xia JIANG1,2(),Wen LI3,Yunlong GUO1,2,Lu WANG1,2,Qun LI1,2,Qingbiao LI1,2,3()   

  1. 1. College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
    2. National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, Fujian, China
    3. College of the Environment& Ecology, Xiamen University, Xiamen 361005, Fujian, China
  • Received:2018-07-05 Revised:2018-09-29 Online:2019-01-05 Published:2019-01-05
  • Contact: Qingbiao LI

摘要:

自然环境中长期进化形成的多层次、多维和多尺度天然硬模板结构和一些具有多层次多维结构的天然“软”生物分子可为多级结构纳米材料的设计与制备提供了新的思路。金属氧化物通常作为催化剂的重要组成部分,其制备与催化应用得到广泛关注,生物模板法为金属氧化物的制备提供了一条简单、绿色、有效的合成路线。本文从基于生物模板的制备方法、生物模板在氧化物制备过程中的作用和生物模板在金属氧化物催化应用时的作用方面总结近十年来的研究进展。基于硬模板的制备方法简单高效,可完美地复制结构类似的金属氧化物材料,而软模板能够灵活地调控金属氧化物颗粒的尺寸和分散性。基于生物模板制备金属氧化物的过程往往经历“吸附-成核-生长-组装”多步骤,生物模板起着表面吸附、空间限域、导向等重要作用。就所得金属氧化物的催化应用而言,生物模板法的优势在于能够实现氧化物材料元素的自掺杂、有效改善传质以及特殊的表面结构赋予催化剂优异的催化性能。

关键词: 生物模板, 金属氧化物, 纳米材料, 催化剂

Abstract:

In natural environment, multilevel and multidimensional, and multi-scale natural hard template structure from long-term evolution and some "soft" natural biological molecules with multi-level, multi-dimensional structure provide a new venue for hierarchically structural design and preparation of nanomaterials. Metal oxides are usually employed as an important component of the catalyst. Therefore, their preparation and catalytic applications have received much attention. Bio-templated synthesis provides a simple, green and efficient synthetic route to the metal oxide. This review summarized the research progress in recent ten years from the aspects of preparation methods based on bio-templates, the roles of biological templates in the oxide preparation process and in catalytic application of metal oxides. The preparation method based on hard template is simple and efficient and can perfectly duplicate metal oxide materials with similar structures, while the soft template can flexibly regulate the size and dispersibility of metal oxide particles. Based on the bio-templated synthesis, the formation of metal oxide often experiences multi-steps of "adsorption-nucleation and growth-assembly", where bio-template plays important roles in the surface adsorption, confinement, orientation, etc. For catalytic applications of the metal oxide, bio-templated synthesis offers the advantage to enable the elemental self-doping of metal oxide, effectively improve mass transfer, and special surface structure of metal oxide endows the resulting catalyst with excellent catalytic performance.

Key words: biotemplate, metal oxide, nanomaterial, catalyst

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