title: Methanol Gas-Sensing Properties of SWCNT-MIP Composites.
abstract: The single-walled carbon nanotube (SWCNT)-molecularly imprinted powder (MIP) composites in this paper were prepared by mixing SWCNTs with MIPs. The structure and micrograph of the as-prepared SWCNTs-MIPs samples were characterized by XRD and TEM. The gas-sensing properties were tested through indirect-heating sensors based on SWCNT-MIP composites fabricating on an alumina tube with Au electrodes and Pt wires. The results showed that the structure of SWCNTs-MIPs is of orthogonal perovskite and the average particle size of the SWCNTs-MIPs was in the range of 10-30 nm. SWCNTs-MIPs exhibit good methanol gas-sensitive properties. At 90 °C, the response to 1 ppm methanol is 19.7, and the response to the interferent is lower than 5 to the other interferent gases (ethanol, formaldehyde, toluene, acetone, ammonia, and gasoline). The response time and recovery time are 50 and 58 s, respectively. The as prepared SWCNTs-MIPs possesses good selectivity and high response to low concentrationmethanol.
authors.affiliation: School of Materials Science and Engineering, Yunnan Key Laboratory of Micro/Nano Materials and Technology, Yunnan University, Kunming, 650091, People's Republic of China.|The State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co., Ltd., Kunming, 650106, People's Republic of China.
authors.forename: Jin
authors.initials: J
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Engineering, Yunnan Key Laboratory of Micro/Nano Materials and Technology, Yunnan University, Kunming, 650091, People's Republic of China.|The State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co., Ltd., Kunming, 650106, People's Republic of China.
authors.forename: Qin
authors.initials: Q
authors.lastname: Zhu
authors.affiliation: School of Materials Science and Engineering, Yunnan Key Laboratory of Micro/Nano Materials and Technology, Yunnan University, Kunming, 650091, People's Republic of China.|The State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co., Ltd., Kunming, 650106, People's Republic of China.
authors.forename: Yumin
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Engineering, Yunnan Key Laboratory of Micro/Nano Materials and Technology, Yunnan University, Kunming, 650091, People's Republic of China.|The State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co., Ltd., Kunming, 650106, People's Republic of China.
authors.forename: Zhongqi
authors.initials: Z
authors.lastname: Zhu
authors.affiliation: School of Materials Science and Engineering, Yunnan Key Laboratory of Micro/Nano Materials and Technology, Yunnan University, Kunming, 650091, People's Republic of China. qjliu@ynu.edu.cn.|The State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co., Ltd., Kunming, 650106, People's Republic of China. qjliu@ynu.edu.cn.
authors.forename: Qingju
authors.initials: Q
authors.lastname: Liu
keywords: Gas-sensing properties; Methanol gas; SWCNT-MIP composites