Improving anti-sulfur performance of methane sensors by new vectors and active components

作     者：WANG Ying, TONG Minming, ZHANG Tao School of Information and Electrical Engineering, China University of Mining & Technology, Xuzhou 221008, China 

作者机构：[a] School of Information Electrical Engineering China University of Mining & Technology Xuzhou 221008 China 

出 版 物：《Mining Science and Technology》 (矿业科学技术（英文版）)

年 卷 期：2010年第20卷第6期

页      面：913-916页

核心收录：

学科分类：0819[工学-矿业工程] 081903[工学-安全技术及工程] 08[工学] 

基　　金：support for this work  provided by the National Natural Science Foundation of China (No60910005) 

主　　题：Cerium anti-sulfur stability sensitivity 

摘      要：Conventional Pd/γ-A12O3 methane sensors are easily poisoned in a sulfur-containing atmosphere, with a subsequent decrease in sensitivity and the working life of methane sensors. We mainly investigated the effect of nanotechnology and a cerium co-catalyst on the stability and anti-sulfur performance of methane sensors. In our experiment, an anti-sulfur methane sensor was prepared by immersing cerium-containing γ-alumina nanometer elements into a Pt-Pd bimetallic nanometer catalyst. The experi- ment about the sensitivity and stability performance of different catalytic methane sensors indicate that sensitivity, decreased by catalyst sulfur poisoning, is improved significantly by adding cerium to the vector. As well, the long-term operational stability of methane sensors increased significantly.