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题名: Controllable synthesis of Ag-WO3 core-shell nanospheres for light-enhanced gas sensors
作者: Yao, Yao1, 2;  Yin, Mingli1;  Yan, Junqing1;  Yang, Dong1;  Liu, Shengzhong (Frank)1, 3
关键词: Ag-WO3 ;  Core-shell ;  Nanosphere ;  Sensor ;  Plasmonic
刊名: SENSORS AND ACTUATORS B-CHEMICAL
发表日期: 2017-11-01
DOI: 10.1016/j.snb.2017.05.007
卷: 251, 页:583-589
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Analytical ;  Electrochemistry ;  Instruments & Instrumentation
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Instruments & Instrumentation
英文摘要: Ag-WO3 core-shell nanospheres (CSNSs) are fabricated for gas sensor applications. It is found that the sensor based on Ag-WO3 CSNSs dramatically improve the sensor performance towards alcohol vapor, with significantly lower optimum working temperature (260 degrees C) and superior detection limit (0.20 ppm) comparing to pure WO3 hollow nanospheres (HNSs). The Ag-WO3 sensor displays an ultrahigh sensitivity under visible light illumination. When illuminated under a 150 W xenon arc light source, the response is increased from 62 to 160, the optimum working temperature is reduced from 260 to 190 degrees C, and the detection limit is improved from 0.20 to 0.032 ppm. This work may offer an attractive strategy to improve sensitivity of light-enhanced plasmonic metal-oxide based gas sensors. (C) 2017 Published by Elsevier B.V.
关键词[WOS]: SENSING PROPERTIES ;  ROOM-TEMPERATURE ;  HYDROTHERMAL SYNTHESIS ;  OPTICAL-PROPERTIES ;  TUNGSTEN-OXIDES ;  NANOPARTICLES ;  NANOSTRUCTURES ;  PERFORMANCE
语种: 英语
WOS记录号: WOS:000406184600070
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149943
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem, Natl Minist Educ,Sch Mat Sci & Engn, Shaanxi Key Lab Adv Energy Devices,Shaanxi Engn L, Xian 710119, Shaanxi, Peoples R China
2.Ningxia Normal Univ, Coll Chem & Chem Engn, Guyuan 756000, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, iChEM, Dalian 116023, Peoples R China

Recommended Citation:
Yao, Yao,Yin, Mingli,Yan, Junqing,et al. Controllable synthesis of Ag-WO3 core-shell nanospheres for light-enhanced gas sensors[J]. SENSORS AND ACTUATORS B-CHEMICAL,2017,251:583-589.
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