Fabrication of Lettuce-Like ZnO Gas Sensor with Enhanced H2S Gas Sensitivity

被引：41

作者：

Yu, Ziyang ^{[1
]}

Gao, Jie ^{[2
]}

Xu, Longxiao ^{[1
]}

Liu, Tianyu ^{[1
]}

Liu, Yueying ^{[1
]}

Wang, Xiangyue ^{[3
]}

Suo, Hui ^{[1
]}

Zhao, Chun ^{[1
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130118, Peoples R China

[2] Jilin Univ, Coll Elect Sci & Engn, Changchun 130118, Peoples R China

[3] Jilin Univ, Coll Chem, Changchun 130118, Peoples R China

来源：

CRYSTALS | 2020年 / 10卷 / 03期

基金：

中国国家自然科学基金;

关键词：

ZnO; microspheres; gas sensors; H2S; fast response; SENSING PROPERTIES; ZINC-OXIDE; TIN OXIDE; NANOWIRES; MECHANISM; REGIME;

D O I：

10.3390/cryst10030145

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

In this work, a lettuce-like ZnO gas sensor with high sensitivity for H2S detection was successfully fabricated by a one-step hydrothermal method. Characterization analysis of the phases, crystallinities, morphology, and chemical compositions indicated that lettuce-like ZnO has a lettuce-like microsphere structure composed of wurtzite hexagonal ZnO sheets. A gas sensitivity test of the lettuce-like ZnO showed that the sensor had a high H2S response (113.04 for 100 ppm H2S) and H2S selectivity. The lettuce-like ZnO sensor has fast response characteristics while maintaining high sensitivity, and has a response time as low as 15 seconds and a recovery time of 90 seconds, and the detection limit reaches 1 ppm. The sensitive mechanism of lettuce-like ZnO sensor to H2S is also discussed.

引用

页数：9

共 36 条

[1] OXYGEN-CHEMISORPTION ON TIN OXIDE - CORRELATION BETWEEN ELECTRICAL-CONDUCTIVITY AND ELECTRON-PARAMAGNETIC-RES MEASUREMENTS [J].

CHANG, SC .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY, 1980, 17 (01) :366-369

[2] One-pot synthesis of zinc oxide - polyaniline nanocomposite for fabrication of efficient room temperature ammonia gas sensor [J].

Das, Mausumi ;

Sarkar, D. .

CERAMICS INTERNATIONAL, 2017, 43 (14) :11123-11131

[3] CO sensing characteristics of In-doped ZnO semiconductor nanoparticles [J].

Dhahri, R. ;

Hjiri, M. ;

El Mir, L. ;

Alamri, H. ;

Bonavita, A. ;

Iannazzo, D. ;

Leonardi, S. G. ;

Neri, G. .

JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES, 2017, 2 (01) :34-40

[4] Multi-layer ZnO architectures Polymer induced synthesis and their application as gas sensors [J].

Geng, Baoyou ;

Liu, Jun ;

Wang, Chunhua .

SENSORS AND ACTUATORS B-CHEMICAL, 2010, 150 (02) :742-748

[5] A REVIEW OF THE HEALTH-EFFECTS OF HYDROGEN-SULFIDE EXPOSURE [J].

GLASS, DC .

ANNALS OF OCCUPATIONAL HYGIENE, 1990, 34 (03) :323-327

[6] Optimal Packing of a Rotating Packed Bed for H2S Removal [J].

Guo, Kai ;

Wen, Jiawu ;

Zhao, Ying ;

Wang, Yu ;

Zhang, Zhenzhen ;

Li, Zongxiang ;

Qian, Zhi .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2014, 48 (12) :6844-6849

[7] Metal oxides and metal salt nanostructures for hydrogen sulfide sensing: mechanism and sensing performance [J].

Guo, Zhi ;

Chen, Guiqiu ;

Zeng, Guangming ;

Liu, Lingzhi ;

Zhang, Chang .

RSC ADVANCES, 2015, 5 (67) :54793-54805

[8] Study of the photoconductive ZnO UV detector based on the electrically floated nanowire array [J].

He, Yongning ;

Zhang, Wen ;

Zhang, Songchang ;

Kang, Xue ;

Peng, Wenbo ;

Xu, Youlong .

SENSORS AND ACTUATORS A-PHYSICAL, 2012, 181 :6-12

[9] Sulfuration-desulfuration reaction sensing effect of intrinsic ZnO nanowires for high-performance H2S detection [J].

Huang, Haiyun ;

Xu, Pengcheng ;

Zheng, Dan ;

Chen, Chuanzhao ;

Li, Xinxin .

JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (12) :6330-6339

[10] H2S sensing in the ppb regime with zinc oxide nanowires [J].

Huber, Florian ;

Riegert, Soeren ;

Madel, Manfred ;

Thonke, Klaus .

SENSORS AND ACTUATORS B-CHEMICAL, 2017, 239 :358-363

← 1 2 3 4 →