Ultrasensitive room-temperature detection of NO2 with tellurium nanotube based chemiresistive sensor

CORC > 苏州纳米技术与纳米仿生研究所 > 中国科学院苏州纳米技术与纳米仿生研究所 > 纳米研究国际实验室 > 张珽团队

	Ultrasensitive room-temperature detection of NO2 with tellurium nanotube based chemiresistive sensor
	Zhang T(张珽)
刊名	SENSORS AND ACTUATORS B-CHEMICAL
	2014-06
卷号	196 期号:0 页码:321-327
关键词	Gas sensor Te nanotube NO2 Microwave heating Hydrothermal synthesis
通讯作者	Wang, S
英文摘要	Te nanotubes were synthesized through a microwave reflux method that employed a mixture of polyethylene glycol and water as solvent. The water content was used to manipulate the boiling temperature of the solvent. Characterizations of the Te products with scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy and X-ray diffraction spectroscopy indicate that the growth of Te nanotubes is governed by both diffusion-limited depletion at the surface of seeds and dissolution-crystallization process. A chemiresistive sensor constructed with the as-prepared Te nanotubes exhibits excellent sensitivity and selectivity to trace amount of NO2 at room temperature, where the low detection limit is found to near 500 ppt. The response of the gas sensor is totally reversible with the assistance of UV irradiation, in which increasing the UV exposure reduces the sensor recovery time to less than 5 min. The great performance of this Te-based gas sensor is attributed to the large surface-to-volume ratio and high crystallinity of these Te nanotubes. (C) 2014 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000333652400044
公开日期	2014-12-08
内容类型	期刊论文
源URL	[http://ir.sinano.ac.cn/handle/332007/1669]
专题	苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_张珽团队
推荐引用方式 GB/T 7714	Zhang T. Ultrasensitive room-temperature detection of NO2 with tellurium nanotube based chemiresistive sensor[J]. SENSORS AND ACTUATORS B-CHEMICAL,2014,196(0):321-327.
APA	Zhang T.(2014).Ultrasensitive room-temperature detection of NO2 with tellurium nanotube based chemiresistive sensor.SENSORS AND ACTUATORS B-CHEMICAL,196(0),321-327.
MLA	Zhang T."Ultrasensitive room-temperature detection of NO2 with tellurium nanotube based chemiresistive sensor".SENSORS AND ACTUATORS B-CHEMICAL 196.0(2014):321-327.