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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：集成电路学院副院长
性别：男
毕业院校：英国利兹大学
学位：博士
所在单位：集成电路学院
学科：微电子学与固体电子学
联系方式：Email：lixg@dlut.edu.cn
电子邮箱：lixg@dlut.edu.cn
Preparation of modified MWCNTs-doped PANI nanorods by oxygen plasma and their ammonia-sensing properties
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论文类型：期刊论文
发表时间：2013-05-01
发表刊物：JOURNAL OF MATERIALS SCIENCE
收录刊物：SCIE、EI
卷号：48
期号：9
页面范围：3597-3604
ISSN号：0022-2461
摘要：Multi-wall carbon nanotubes (MWCNTs)-doped polyaniline (PANI) nanopowders were prepared by chemical oxidation polymerization. Then, the MWCNTs-doped PANI nanopowders were modified by a radio frequency (RF) oxygen plasma source. The morphology and structure of modified MWCNTs-doped PANI nanorods were analyzed by SEM and FI-IR. Gas sensors were fabricated based on plasma modified MWCNTs-doped PANI nanorods to detect ammonia at room temperature. The response amplitude of the gas sensor based on modified MWCNTs-doped PANI nanorods was much higher than those of MWCNTs-doped PANI nanopowders and pure PANI nanopowders sensors, respectively, in ammonia concentration range of 10-150 ppm. Cross responses of modified MWCNTs-doped PANI nanorods sensor to ammonia, ethanol, formaldehyde, and toluene were tested. The sensor showed good selectivity and stability. The sensing mechanism of modified MWCNTs-doped PANI nanorods gas sensor was analyzed.