Ordered porous metal oxide semiconductors for gas sensing  

作　　者：Xinran Zhou Xiaowei Cheng Yongheng Zhu Ahmed A. Elzatahry Abdulaziz Alghamdi Yonghui Deng Dongyuan Zhao 

机构地区：[1]Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China [2]College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China [3]Materials Sdence and Technology Program, College of Arts and Sdences, Qatar University, Doha 2713, Qatar [4]Center for Advanced Materials, Qatar University, Doha 2713, Qatar [5]Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia [6]State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China

出　　处：《Chinese Chemical Letters》2018年第3期405-416,共12页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.51372041,51422202, and 21673048);the "Shu Guang" Project(No. 13SG02)supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation;the National Youth Top-notch Talent Support Program in China, China Postdoctoral Science Foundation(No. KLH1615138);Shanghai Nature Science Foundation of China(Nos. 14ZR1416600 and 15ZR1402000);Shanghai Pujiang Program, China(No.16PJ1401100);the International Scientific Partnership Program ISPP at King Saud University for funding this research work through ISPP# 0094

摘　　要：Among various gas sensing materials, metal oxide semiconductors have shown great potential as resistive type sensors. The ordered porous structural metal oxide semiconductors with well-defined meso- or macro-pores chemically synthesized via soft-templating method and nanocasting strategy have high porosity, highly interconnected pore channels and high surface area with enormous active sites for interacting with gaseous molecules. These features enable them good performance in gas sensing, including high sensitivity, fast response and recovery, good selectivity. This review gives a comprehensive summary about the porous metal oxides with focus on the synthesis methods, structure related properties, as well as the modification strategies for gas sensing improved performances.Among various gas sensing materials, metal oxide semiconductors have shown great potential as resistive type sensors. The ordered porous structural metal oxide semiconductors with well-defined meso- or macro-pores chemically synthesized via soft-templating method and nanocasting strategy have high porosity, highly interconnected pore channels and high surface area with enormous active sites for interacting with gaseous molecules. These features enable them good performance in gas sensing, including high sensitivity, fast response and recovery, good selectivity. This review gives a comprehensive summary about the porous metal oxides with focus on the synthesis methods, structure related properties, as well as the modification strategies for gas sensing improved performances.

关 键 词：Porous materials Metal oxides Templating-synthesis Gas sensing 

分 类 号：O611.62[理学—无机化学]