Multi-walled Carbon Nanotube-based Gas Sensor for NH3 Detection at Room Temperature

摘要：

Gas sensors based on Multi-walled carbonnanotubes(MWNTs) for Ammonia(NH3) detection at roomtemperature were studied. MWNT were prepared by chemical vapordeposition method, and coated on Au electrodes, which weresputtered on anodised aluminium substrate and then immersed inthiol solution for 24h.It is found that the MWNT based sensors havea reversible sensing capacity to NH3 gas with response time andrecovery time were less than 1min, respectively. At room temperatureof 25 ℃, resistance changes of the sensor were logarithmic dependenton NH3 gas concentrations. It is suggested that MWNTs could be apromising sensing material for NH3 detection at room temperature.

作者: Guo Miao Wu Kai-Hua Xu Ying Wang Ren-Hui Pan Min

作者单位: Institute Of Biomedical Engineering and Instrument Hangzhou Dianzi University Hangzhou, China Department of Biomedical Engineering Zhejiang University Hangzhou, China

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-3

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）