摘要
采用多壁碳纳米管(MWNTs)改善传统载体的盲孔性结构,提升传感器性能。向Al2O3粉体中掺入不同比例的羟基化MWNTs,制备了MWNTs和Al2O3质量分数比0.05%、0.1%和0.5%的3种载体,制成了微悬梁结构的甲烷传感器。测试表明:MWNTs的掺杂显著地提高了Al2O3气敏材料对甲烷气体的灵敏度及响应时间,灵敏度14 mV/1%CH4,响应恢复时间分别为7 s和9 s。研究成果为改善传统载体甲烷传感器的性能提供了有益参考。
Multiwall carbon nanotubes (MWNTs)is used to improve the blind structure of the traditional carrier and improve the performance of the sensor.After hydroxylation three kinds of carriers with MWNTs and Al2O3mass fraction ratio of 0.05%,0.1%and 0.5%were prepared by adding different proportions of MWNTs to Al2O3powder.A methane sensor with micro-cantilever structure was prepared,The test result shows that the doping of-MWNTs significantly improved the sensitivity,and response time of Al2O3-gas sensitive materials to methane gas.When the methane gas concentration is 1%,the sensitivity of the component is 14mV,and the response and recovery time was 7s and 9s respectively.The research results provide useful references for improving the performance of traditional carrier methane Sensor.to improve the'blind structure of the
作者
蔡长霖
沈斌
曹胜武
杨培青
CAI chang-lin;SHEN Bin;CAO Sheng-wu;YANG Pei-qing(College of Communication and Information Technology,North University of China,Taiyuan 030051,China;School of Safety Engineering and Technology lHeilongjiang University of Science and Technology,Harbin 150022,China;National Central Laboratory of Hydrocarbon Gas Transportation Pipeline Safety,Heilongjiang University of Science and Technology,Harbin 150022,China)
出处
《煤炭技术》
CAS
2018年第12期302-304,共3页
Coal Technology
基金
国家自然科学基金(51504088)
哈尔滨市科技创新人才研究专项资金项目(2017RAQXJ118)
