Co3O4-SWCNT composites for H2S gas sensor application

被引：75

作者：

Moon, Soyeon ^{[1
]}

Nguyen Minh Vuong ^{[2
]}

Lee, Dongsuk ^{[2
]}

Kim, Dahye ^{[2
]}

Lee, Hyundong ^{[1
]}

Kim, Dojin ^{[1
,2
]}

Hong, Soon-Ku ^{[1
,2
]}

Yoon, Soon-Gil ^{[1
,2
]}

机构：

[1] Chungnam Natl Univ, Dept Adv Circuit Substrate Engn, Taejon 305764, South Korea

[2] Chungnam Natl Univ, Dept Mat Sci & Engn, Taejon 305764, South Korea

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2016年 / 222卷

关键词：

Hydrogen sulfide; Gas sensor; Co3O4; Carbon nanotubes; Arc-discharge; SNO2; THIN-FILMS; HYDROGEN-SULFIDE; SENSING PROPERTIES; CARBON NANOTUBES; MECHANISM;

D O I：

10.1016/j.snb.2015.08.072

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An arc-discharge method to fabricate Co3O4 nanoparticles and Co3O4-single walled carbon nanotube (SWCNT) nanocomposite structures is developed. The insertion of variable Co content into the graphite tube produced proportionally different compositions of Co nanoparticles in the web of SWCNTs synthesized. The oxidation temperature employed determines the content of SWCNT that remains in the composites as well as the crystallinity of the cobalt oxide nanoparticles. The fabricated Co3O4-SWCNT nanocomposite structures were applied as a gas sensor to detect the H2S gas species with high selectivity among reducing gases including NH3, CH4 and H-2. The Co3O4-SWCNTcomposite structure exhibited better performance than a pure Co3O4 nanoparticle structure due to the high defect density in the Co3O4 nanoparticles. In general, films made of nanoparticle agglomerations showed better performance than thin film type sensors, illustrating the nano effect. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：166 / 172

页数：7

共 45 条

[1] Chemiresistive gas sensing properties of nanocrystalline Co3O4 thin films [J].

Balouria, Vishal ;

Samanta, S. ;

Singh, A. ;

Debnath, A. K. ;

Mahajan, Aman ;

Bedi, R. K. ;

Aswal, D. K. ;

Gupta, S. K. .

SENSORS AND ACTUATORS B-CHEMICAL, 2013, 176 :38-45

[2] Unmodified versus caustics-impregnated carbons for control of hydrogen sulfide emissions from sewage treatment plants [J].

Bandosz, TJ ;

Bagreev, A ;

Adib, F ;

Turk, A .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2000, 34 (06) :1069-1074

[3]

Barreca D, 2001, CHEM MATER, V13, P588, DOI 10.1021/cm00104lx

[4] Defect Chemistry and Catalytic Activity of Nanosized Co3O4 [J].

Casas-Cabanas, M. ;

Binotto, G. ;

Larcher, D. ;

Lecup, A. ;

Giordani, V. ;

Tarascon, J. -M. .

CHEMISTRY OF MATERIALS, 2009, 21 (09) :1939-1947

[5] Response speed of SnO2-based H2S gas sensors with CuO nanoparticles [J].

Chowdhuri, A ;

Gupta, V ;

Sreenivas, K ;

Kumar, R ;

Mozumdar, S ;

Patanjali, PK .

APPLIED PHYSICS LETTERS, 2004, 84 (07) :1180-1182

[6] MECHANISM OF TRACE LEVEL H2S GAS SENSING USING RF SPUTTERED SnO2 THIN FILMS WITH CuO CATALYTIC OVERLAYER [J].

Chowdhuri, Arijit ;

Haridas, Divya ;

Sreenivas, K. ;

Gupta, Vinay .

INTERNATIONAL JOURNAL ON SMART SENSING AND INTELLIGENT SYSTEMS, 2009, 2 (04) :540-548

[7] Design of an atomic layer deposition reactor for hydrogen sulfide compatibility [J].

Dasgupta, Neil P. ;

Mack, James F. ;

Langston, Michael C. ;

Bousetta, Al ;

Prinz, Fritz B. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2010, 81 (04)

[8] Beaded cobalt oxide nanoparticles along carbon nanotubes: Towards more highly integrated electronic devices [J].

Fu, L ;

Liu, ZM ;

Liu, YQ ;

Han, BX ;

Hu, PG ;

Cao, LC ;

Zhu, DB .

ADVANCED MATERIALS, 2005, 17 (02) :217-+

[9] Development of sensors based on CuO-doped SnO2 hollow spheres for ppb level H2S gas sensing [J].

He, Lifang ;

Jia, Yong ;

Meng, Fanli ;

Li, Minqiang ;

Liu, Jinhuai .

JOURNAL OF MATERIALS SCIENCE, 2009, 44 (16) :4326-4333

[10]

Hoa N.D., 2010, SENS ACTUATORS B, V266

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