Preparation of modified MWCNTs-doped PANI nanorods by oxygen plasma and their ammonia-sensing properties
发表时间：2019-03-09
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- 论文类型：
- 期刊论文
- 第一作者：
- Du, Hai-Ying
- 通讯作者：
- Wang, J (reprint author), Dalian Univ Technol, Sch Elect Sci & Technol, Dalian 116023, Peoples R China.
- 合写作者：
- Wang, Jing,Yao, Peng-Jun,Hao, Yu-Wen,Li, Xiao-Gan
- 发表时间：
- 2013-05-01
- 发表刊物：
- JOURNAL OF MATERIALS SCIENCE
- 收录刊物：
- SCIE、EI
- 文献类型：
- J
- 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.
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- 否
