Indexed by:
期刊论文
First Author:
Du, Hai-Ying
Correspondence Author:
Wang, J (reprint author), Dalian Univ Technol, Sch Elect Sci & Technol, Dalian 116023, Peoples R China.
Co-author:
Wang, Jing,Yao, Peng-Jun,Hao, Yu-Wen,Li, Xiao-Gan
Date of Publication:
2013-05-01
Journal:
JOURNAL OF MATERIALS SCIENCE
Included Journals:
SCIE、EI
Document Type:
J
Volume:
48
Issue:
9
Page Number:
3597-3604
ISSN No.:
0022-2461
Abstract:
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.
Translation or Not:
no
