期刊
2012 INTERNATIONAL WORKSHOP ON INFORMATION AND ELECTRONICS ENGINEERING
卷 29, 期 -, 页码 4107-4111出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.proeng.2012.01.628
关键词
MWNTs; gas sensor; modification; SF6 decomposition products; gas sensing response
Detecting and analyzing SF6 decomposition products under partial discharge (PD) is an effective way of diagnosing the internal operating status of gas insulated switchgear (GIS). In this text, three different gas sensors are developed, whose gas-sensing materials are pure MWNTs, MWNTs modified by mixed acid and NiCl2-doped MWNTs respectively. The gas sensing response for SF6 PD decomposition products based on three MWNTs sensors is tested. The results show the mixed acid modifying could improve the sensitivity of MWNTs to detect SF6 PD decomposition products and the doping NiCl2 further improves the gas sensitivity of MWNTs, which makes MWNTs have better sensitivity and fast response characteristic. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Harbin University of Science and Technology
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