文献类型：期刊文献

英文题名：Combinatorial Material Strategy: Parallel Synthesis and High-Throughput Screening of WO3 Nanoplates Decorated with Noble Metals for VOCs Sensor

作者：Ma, Yanjia[1];Hou, Ming[1];Yang, Li[1];Gao, Jiyun[1];Zhang, Guozhu[2];Guo, Ronghui[3];Guo, Shenghui[1]

机构：[1]Kunming Univ Sci & Technol, Dept Met & Energy Engn, Kunming 650093, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai Key Lab Intelligent Sensing & Detect Tech, Shanghai 200237, Peoples R China;[3]Sichuan Univ, Coll Biomass Sci & Engn, Chengdu 610065, Peoples R China

年份：2023

卷号：11

期号：4

外文期刊名：CHEMOSENSORS

收录：;EI(收录号：20243416894854);WOS:【SCI-EXPANDED(收录号:WOS:000979178500001)】；

基金：This research was supported by Yunnan Province Science and Technology Major Project for Materials Genetic Engineering of Rare and Precious Metal (202002AB080001); National Natural Science Foundation of China (51864028); Science Research Foundation of Yunnan Provincial Education Department (2022J0441); Sichuan Science and Technology Program (22QYCX0097).

语种：英文

外文关键词：high-throughput screening; volatile organic compounds; WO3; surface modification; array optimization

摘要：In this study, we report on the rapid preparation of WO3 nanoplates decorated with noble metals and evaluate their gas-sensing performance using a high-throughput screening technique. The incorporation of Pd significantly enhanced the gas-sensing properties, and, among all of the samples tested, the WO3 nanoplate containing 0.3 mol% Pd exhibited the highest response to 100 ppm xylene at 250 degrees C (R-a/R-g = 131.2), which was almost 56 times greater than that of the pure WO3 sample. Additionally, this sample demonstrated rapid response and recovery times (tau(response) = 3.9 s and tau(recovery) = 189.2 s, respectively). The nanoplate samples were also classified and screened using cluster analysis, and the selected samples were optimized for use in a sensor array. By applying principal component analysis and Fisher discriminant analysis, four typical gases were identified and a potential sensitization mechanism was elucidated.