Thin film chemiresistive gas sensor on single-walled carbon nanotubes-functionalized with polyethylenimine (PEI) for NO2 gas sensing

被引：0

作者：

Kumar, Sunil ^{[1
,4
]}

Pavelyev, Vladimir ^{[1
]}

Mishra, Prabhash ^{[1
,2
,3
]}

Tripathi, Nishant ^{[1
]}

机构：

[1] Samara Natl Res Univ, Dept Nanoengn, Samara 443086, Russia

[2] MIPT, Ctr Photon & 2D Mat, Dolgoprudnyi 141700, Russia

[3] Jamia Millia Islamia, Ctr Nanosci & Nanotechnol, New Delhi 110025, India

[4] Univ Politecn Madrid, ISOM, ETSI Telecommun, E-28040 Madrid, Spain

来源：

BULLETIN OF MATERIALS SCIENCE | 2020年 / 43卷 / 01期

关键词：

Carbon nanotubes; polyethylenimine (PEI); sensor NO2; TEMPERATURE MODULATION; ARC-DISCHARGE; POLYMER; PERFORMANCE; NH3;

D O I：

10.1007/s12034-020-2043-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chemical detection of toxic gases, such as greenhouse gases is still very important as a research topic. To design gas sensor detectors based on single-walled carbon nanotubes (SWCNTs) with high sensitivity and selectivity for the toxic environment is a continuous process. The aim is to detect NO2substrate and it is functionalized with polyethylenimine (PEI). It has been established that PEI functionalized SWCNTs (F-SWCNTs) show high sensitivity towards strong electron-withdrawing particles. It was found that at room temperature, SWCNTs-PEI functionalized gas sensor exhibited a higher sensitivity of 37.00% as compared with bare SWCNTs gas sensor. The gas sensor has shown the repeatable response for the entire concentration range studied. The sensing properties and the PEI functionalization duration effects on the behaviour of SWCNTs-based gas sensors were demonstrated.

引用

页数：7

共 46 条

[41] A novel SnO2 gas sensor doped with carbon nanotubes operating at room temperature [J].

Wei, BY ;

Hsu, MC ;

Su, PG ;

Lin, HM ;

Wu, RJ ;

Lai, HJ .

SENSORS AND ACTUATORS B-CHEMICAL, 2004, 101 (1-2) :81-89

[42]

WHO, WHO 2016 WHO REL COU

[43]

Yamada T, 2011, NAT NANOTECHNOL, V6, P296, DOI [10.1038/nnano.2011.36, 10.1038/NNANO.2011.36]

[44] Vertically aligned MoS2/ZnO nanowires nanostructures with highly enhanced NO2 sensing activities [J].

Zhao, Shufen ;

Wang, Guojing ;

Liao, Jiecui ;

Lv, Shasha ;

Zhu, Zhenan ;

Li, Zhengcao .

APPLIED SURFACE SCIENCE, 2018, 456 :808-816

[45] Highly enhanced response of MoS2/porous silicon nanowire heterojunctions to NO2 at room temperature [J].

Zhao, Shufen ;

Li, Zhengcao ;

Wang, Guojing ;

Liao, Jiecui ;

Lv, Shasha ;

Zhu, Zhenan .

RSC ADVANCES, 2018, 8 (20) :11070-11077

[46] UV light activated NO2 gas sensing based on Au nanoparticles decorated few-layer MoS2 thin film at room temperature [J].

Zhou, Yong ;

Zou, Cheng ;

Lin, Xiaogang ;

Guo, Yongcai .

APPLIED PHYSICS LETTERS, 2018, 113 (08)

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