Effective improvement of sensing performance of amperometric NO2 sensor   by Ag-modified nano-structured CuO sensing electrode

doi:10.1016/j.snb.2014.10.125

CORC > 北京大学 > 化学与分子工程学院

	Effective improvement of sensing performance of amperometric NO2 sensor by Ag-modified nano-structured CuO sensing electrode
	Wang, Ling ; Han, Bingxu ; Wang, Zhouji ; Dai, Lei ; Zhou, Huizhu ; Li, Yuehua ; Wang, Huan
刊名	sensors and actuators b chemical
	2015
关键词	NO2 sensor La10Si5AlO26.5 Amperometric-type Impregnating method CuO-Ag OXIDE FUEL-CELLS SILVER-MODIFIED BA0.5SR0.5CO0.8FE0.2O3-DELTA STABILIZED ZIRCONIA HIGH-TEMPERATURE IMPREGNATING METHOD COMPOSITE CATHODES SOLID-ELECTROLYTE APATITE BEHAVIOR PLANAR
DOI	10.1016/j.snb.2014.10.125
英文摘要	An amperometric-type NO2 gas sensor using La10Si5AlO26.5 (LSAO) with the configuration of dense electrolyte porous electrolyte, Ag-modified nano-structured CuO sensing electrode was investigated. The composition and microstructure of the sensor sample were characterized by SEM and XRD and the performance of the sensor was examined. The prepared Ag-modified nano-structured CuO particles sensing electrode by impregnation technique are homogeneously dispersed in LSAO porous backbone. The sensor displays good response to NO2 and the response currents are almost linear to NO2 concentrations in the range of 0-500 ppm at 550-700 degrees C. Ag addition to the CuO sensing electrode can remarkably increase sensor sensitivity, showing that the performance of the sensor is effectively improved by introducing Ag. The best performance is observed at molar ratio of 1:0.5 for CuO: Ag. The cross-sensitivities of the sensor to co-existant gases (H-2, CH4, CO2, NH3 and toluene) are rather small. (C) 2014 Elsevier B.V. All rights reserved.; Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation; SCI(E); 0; ARTICLE; tswling@126.com; 791-800; 207
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/206229]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang, Ling,Han, Bingxu,Wang, Zhouji,et al. Effective improvement of sensing performance of amperometric NO2 sensor by Ag-modified nano-structured CuO sensing electrode[J]. sensors and actuators b chemical,2015.
APA	Wang, Ling.,Han, Bingxu.,Wang, Zhouji.,Dai, Lei.,Zhou, Huizhu.,...&Wang, Huan.(2015).Effective improvement of sensing performance of amperometric NO2 sensor by Ag-modified nano-structured CuO sensing electrode.sensors and actuators b chemical.
MLA	Wang, Ling,et al."Effective improvement of sensing performance of amperometric NO2 sensor by Ag-modified nano-structured CuO sensing electrode".sensors and actuators b chemical (2015).