Proceedings title: Materials Science Forum
Editors: Zhao GM, Chen LX, Tang Y, He L, Long B, Nie ZY, Chen HH
Publisher: Trans Tech Publications
Volume number: 809-810
Conference information: 2014 China Functional Materials Technology and Industry Forum
Abstract: A new gas sensor with high response and selectivity was fabricated by using molecularly imprinted powders (MIPs) which provide special recognition sites to methanol. The MIPs were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and fourier transform infrared spectrometer (FT-IR), respectively. The gas sensing properties of MIPs to methanol were investigated. The experimental results indicate that the sensors based on the MIPs show excellent gas sensing properties to methanol vapor, and the properties of the sensor with x=6:10 (x= methyl acrylic acid: LaFeO3, molar ratio) are the best. At the optimal operating temperature of 130 °C, the response of the sensor (x=6:10) to 1 ppm methanol is 21, and the response and recovery times are 57 s and 67 s, respectively.
Template and target information: methanol
Author keywords: gas sensor, methanol, Molecularly Imprinted Powders (MIPs)