基于CuO-Co3O4的催化燃烧型一氧化碳传感器

黄彩霞 高国强

引用本文: 黄彩霞, 高国强. 基于CuO-Co3O4的催化燃烧型一氧化碳传感器[J]. 无机化学学报, 2013, 29(6): 1135-1140. doi: 10.3969/j.issn.1001-4861.2013.00.157 shu
Citation:  HUANG Cai-Xia, GAO Guo-Qiang. Catalytic Combustion Type Carbon Monoxide Sensor Based on CuO-Co3O4 Catalyst[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(6): 1135-1140. doi: 10.3969/j.issn.1001-4861.2013.00.157 shu

基于CuO-Co3O4的催化燃烧型一氧化碳传感器

摘要: 采用共沉淀法制备了CuO-Co3O4复合材料,并以其为催化剂,负温度系数热敏电阻(NTCT)为加热电阻,制备了一种催化燃烧型CO传感器,该传感器对CO的定量限为0.034 9 mg·L-1。利用X射线衍射(XRD)和场发射扫描电子显微镜(FESEM)对复合材料的物相和表面形貌进行表征。当CuO-Co3O4的煅烧温度为400 ℃时,传感器对CO的灵敏度最高。在桥电压为9 V,CO的浓度为0.034 9~0.582 mg·L-1时,传感器的响应信号与CO浓度之间呈现良好的线性关系,线性相关系数为0.979。90%的响应和恢复时间分别为24 s和68 s。

English

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  • 收稿日期:  2012-12-07
  • 网络出版日期:  2013-02-28
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