文献类型：期刊文献

英文题名：Polyaniline-Modified Quartz Crystal Microbalance Sensor for Detection of Formic Acid Gas

作者：Yan, Ying[1];Lu, Dandan[1];Zhou, Hao[2];Hou, Haiping[1];Zhang, Ting[1];Wu, Laiming[2];Cai, Lankun[1]

机构：[1]E China Univ Sci & Technol, Coll Resource & Environm Engn, Shanghai 200237, Peoples R China;[2]Shanghai Museum, Sci Conservat & Archaeol Lab, Shanghai 200050, Peoples R China

年份：2012

卷号：223

期号：3

起止页码：1275

外文期刊名：WATER AIR AND SOIL POLLUTION

收录：;EI(收录号：20121414919668);WOS:【SCI-EXPANDED(收录号:WOS:000303385500028)】；

基金：This work was supported by the National Rolling Project of Scientific and Technical Supporting Programs Funded by Ministry of Science & Technology of China (2010BAK67B15), the Project of Natural Science Foundation of Shanghai City (10ZR1407900), and the Opening Project of Shanghai Museum (2008001).

语种：英文

外文关键词：QCM; Gas sensor; Polyaniline; Formic acid; On-line monitoring

摘要：A polyaniline-modified quartz crystal microbalance (QCM) sensor was obtained through immobilizing the polyaniline film on the silver electrode surface of quartz crystal resonator by an electrochemical method. The sensor was studied for detecting the formic acid gas of different concentrations, and the results showed that the resonant frequency of QCM decreased quickly in the beginning and tended to be constant in the end when exposed to formic acid gas. The frequency shifts decreased faster as the concentration of formic acid gas increased. And the frequency shifts of the QCM sensors were found to be linearly related to the concentration of formic acid gas, which might be used to estimate the concentration level of the formic acid gas within the range of experimental concentrations. The result of on-line monitoring test fully indicated that the QCM sensor responded effectively to the increasing concentration of formic acid and had important practical significance and broad application prospect in real-time detection of antique conservation environment in the museum.