高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (5): 855-871.doi: 10.7503/cjcu20190688

• 庆祝《高等学校化学学报》复刊40周年专栏 • 上一篇    下一篇

中空多壳层结构材料的制备及气体传感应用研究进展

孙辉,赖小勇()   

  1. 宁夏大学省部共建煤炭高效利用与绿色化工国家重点实验室, 银川 750021
  • 收稿日期:2019-12-18 出版日期:2020-05-10 发布日期:2020-02-17
  • 通讯作者: 赖小勇 E-mail:xylai@nxu.edu.cn
  • 基金资助:
    国家自然科学基金(51672138)

Progress in Preparation and Gas-sensing Application of Hollow Multi-shell Structured Materials

SUN Hui,LAI Xiaoyong()   

  1. State Key Laboratory of High Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China
  • Received:2019-12-18 Online:2020-05-10 Published:2020-02-17
  • Contact: Xiaoyong LAI E-mail:xylai@nxu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(51672138)

摘要:

先进气体传感器技术在现代社会安全生产生活中扮演着极为重要的角色, 而高效敏感材料的设计与开发是其中的关键. 中空多壳层结构材料因其独特的层层嵌套的多壳层与多腔体结构而表现出特别的物理化学性质, 在气体传感领域显现出巨大的应用潜力. 传统的硬模板法、 软模板法以及基于奥斯特瓦尔德熟化和柯肯德尔效应的无模板法在中空多壳层纳米结构材料的普适制备及壳层结构的精确调控等方面存在诸多限制. 次序模板法的出现突破了上述限制, 促进了该领域的迅速发展. 本文简要回顾了中空多壳层结构材料制备方法的发展历程, 介绍了其在甲醛、 乙醇、 丙酮、 甲苯及二氧化氮等有害气体检测中的具体应用, 分析了其在气体传感领域的独特优势, 最后对该领域面临的挑战和发展前景进行了总结与展望.

关键词: 中空多壳层结构, 金属氧化物半导体, 次序模板法, 气体传感

Abstract:

Advanced gas sensing technology plays a very important role in the safe production and life of modern society, where the keypoint is the design and development of efficient sensing materials. Hollow multi-shell structured materials possess special physical and chemical properties due to their unique structures with both multiple shells and multi spaces and thus great potential in application for gas sensing. The conventional hard template and soft template methods as well as template-free method based on Osterwald ripening or Kirkendall effect have some limitations in the general preparation of hollow multi-shell structured materials and the precise control of the shell structure. The emergence of the sequential template approach greatly broke through the above-mentioned limitations and promoted the rapid development of the field. This paper briefly reviews the development of the preparative method of hollow multi-shell structured materials, introduces their applications in detecting formaldehyde, ethanol, acetone, toluene, nitrogen dioxide and other harmful gases, and analyzes their unique advantages in gas sensing, and finally summarizes and prospects the challenges and prospects.

Key words: Hollow multi-shell structure, Metal oxide semiconductor, Sequential templating approach, Gas sensing

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