CeO2 Enhanced Ethanol Sensing Performance in a CdS Gas Sensor

被引：25

作者：

Li, Meishan ^{[1
]}

Ren, Wei ^{[2
]}

Wu, Rong ^{[1
]}

Zhang, Min ^{[1
]}

机构：

[1] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China

[2] Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China

来源：

SENSORS | 2017年 / 17卷 / 07期

基金：

中国国家自然科学基金;

关键词：

ethanol sensors; nanowires; CdS; CeO2; ROOM-TEMPERATURE; SENSITIVITY; NANOWIRES; MECHANISM; ACETONE; SURFACE;

D O I：

10.3390/s17071577

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

CdS nanowires (NWs) were fabricated through a facile low-temperature solvothermal method, following which CeO2 nanoparticles were modified on the NWs. The ethanol sensing characteristics of pure CdS and decorated ones with different CeO2 content were studied. It was found that the sensing performance of CdS was significantly improved after CeO2 decoration. In particular, the 5 at% CeO2/CdS composite exhibited a much higher response to 100 ppm ethanol (about 52), which was 2.6 times larger than that of pure CdS. A fast response and recovery time (less than 12 s and 3 s, respectively) were obtained as well as an excellent selectivity. These results make the CeO2-decorated CdS NWs good candidates for ethanol sensing applications.

引用

页数：7

共 25 条

[1] SnO2 decorated SiO2 chemical sensors: Enhanced sensing performance toward ethanol and acetone [J].

Asgari, Mehrdad ;

Saboor, Fahimeh Hooriabad ;

Mortazavi, Yadollah ;

Khodadadi, Abbas Ali .

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2017, 68 :87-96

[2] Cr2O3 nanoparticle-functionalized WO3 nanorods for ethanol gas sensors [J].

Choi, Seungbok ;

Bonyani, Maryam ;

Sun, Gun-Joo ;

Lee, Jae Kyung ;

Hyun, Soong Keun ;

Lee, Chongmu .

APPLIED SURFACE SCIENCE, 2018, 432 :241-249

[3] ZnO enhanced NiO-based gas sensors towards ethanol [J].

Deng, Xiaolan ;

Zhang, Lilan ;

Guo, Jing ;

Chen, Qinjun ;

Ma, Jianmin .

MATERIALS RESEARCH BULLETIN, 2017, 90 :170-174

[4] CO sensing mechanism of LaCoO3 [J].

Ding, Jun-Chao ;

Li, Hua-Yao ;

Guo, Xin .

SOLID STATE IONICS, 2015, 272 :155-159

[5] Highly efficient rapid ethanol sensing based on In2-xNixO3 nanofibers [J].

Feng, Caihui ;

Li, Wei ;

Li, Chao ;

Zhu, Linghui ;

Zhang, Haifeng ;

Zhang, Ying ;

Ruan, Shengping ;

Chen, Weiyou ;

Yu, Lianxiang .

SENSORS AND ACTUATORS B-CHEMICAL, 2012, 166 :83-88

[6] Ethanol sensing properties of LaCoxFe1-xO3 nanoparticles: Effects of calcination temperature, Co-doping, and carbon nanotube-treatment [J].

Feng, Caihui ;

Ruan, Shengping ;

Li, Jiajing ;

Zou, Bo ;

Luo, Junyu ;

Chen, Weiyou ;

Dong, Wei ;

Wu, Fengqing .

SENSORS AND ACTUATORS B-CHEMICAL, 2011, 155 (01) :232-238

[7] Two-dimensional net-like SnO2/ZnO heteronanostructures for high-performance H2S gas sensor [J].

Fu, Diyu ;

Zhu, Chunling ;

Zhang, Xitian ;

Li, Chunyan ;

Chen, Yujin .

JOURNAL OF MATERIALS CHEMISTRY A, 2016, 4 (04) :1390-1398

[8] US nanobelts as photoconductors [J].

Gao, T ;

Li, QH ;

Wang, TH .

APPLIED PHYSICS LETTERS, 2005, 86 (17) :1-3

[9] Room temperature H2S gas sensor based on rather aligned ZnO nanorods with flower-like structures [J].

Hosseini, Z. S. ;

Zad, A. Iraji ;

Mortezaali, A. .

SENSORS AND ACTUATORS B-CHEMICAL, 2015, 207 :865-871

[10] Detection of ethanol gas using In2O3 nanoparticle-decorated ZnS nanowires [J].

Kim, Kyoung-Kook ;

Kim, Dongjun ;

Kang, Soo-Hyun ;

Park, Sunghoon .

SENSORS AND ACTUATORS B-CHEMICAL, 2017, 248 :43-49

← 1 2 3 →