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Stably dispersed carbon nanotubes covalently bonded to phthalocyanine cobalt(II) for ppb-level H2S sensing at room temperature
Wu, Hao; Chen, Zhimin; Zhang, Jialin; Wu, Feng; He, Chunying; Wang, Bin; Wu, Yiqun; Ren, Zhiyu; zmchen@siom.ac.cn; zyren@hlju.edu.cn
2016
Source PublicationJ. Mater. Chem. A
Volume4Issue:3Pages:1096
AbstractCost-efficient, highly sensitive and stable sensing materials play a key role in developing H2S sensors. Herein, tetra-beta-carboxyphenyloxyphthalocyanine cobalt(II) (cPcCo) has been successfully bonded on the surface of acidified multiwalled carbon nanotubes (aCNTs) by a facile two-step condensation reaction in the presence of N,N'-dicyclohexylcarbodiimide (DCC), using hydroquinone (HQ), p-aminophenol (PAP), and p-phenylenediamine (PPD) as linking molecules, respectively. The obtained cPcCo-B-aCNT (B= HQ, PAP, and PPD) hybrids display good dispersibility in ethanol, which is beneficial to construct uniform sensing devices. The cPcCo-B-aCNT sensors, with a loose network-like structure, present abundant exposed sensing sites, oriented transmission of charges, and unimpeded pathways for H2S diffusion, which endow the cPcCo-B-aCNT hybrids with excellent sensing performance, in terms of sensitivity, reliability, reproducibility, and detection limit. The detection limit of the sensors composed of cPcCo-BaCNT hybrids towards H2S reaches the ppb-level at room temperature, which is about the same as the odor threshold level for humans. For the cPcCo-HQ-aCNT sensor, the response to H2S varies linearly with respect to its concentration from 20 to 160 ppb and from 320 to 2560 ppb, with the highest gas response of 2.5% to 80 ppb H2S and a low detection limit of 5 ppb. Furthermore, the linking molecules play a critical role in the sensitivity of H2S, as evidenced from the current-voltage characteristics. The systematic study developed here provides a valid way to fabricate other high-efficient H2S sensors.
SubtypeArticle
Department存储
DOI10.1039/c5ta09213b
Funding OrganizationNational Natural Science Foundation of China [51002046, 51102082, 51202061, 21573062]; Natural Science Foundation for the Returned Overseas Scholars of Heilongjiang Province [LC2012C02]; Natural Science Foundation of Heilongjiang Province of China [B20130 ; National Natural Science Foundation of China [51002046, 51102082, 51202061, 21573062]; Natural Science Foundation for the Returned Overseas Scholars of Heilongjiang Province [LC2012C02]; Natural Science Foundation of Heilongjiang Province of China [B20130 ; National Natural Science Foundation of China [51002046, 51102082, 51202061, 21573062]; Natural Science Foundation for the Returned Overseas Scholars of Heilongjiang Province [LC2012C02]; Natural Science Foundation of Heilongjiang Province of China [B20130 ; National Natural Science Foundation of China [51002046, 51102082, 51202061, 21573062]; Natural Science Foundation for the Returned Overseas Scholars of Heilongjiang Province [LC2012C02]; Natural Science Foundation of Heilongjiang Province of China [B20130
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [51002046, 51102082, 51202061, 21573062]; Natural Science Foundation for the Returned Overseas Scholars of Heilongjiang Province [LC2012C02]; Natural Science Foundation of Heilongjiang Province of China [B20130 ; National Natural Science Foundation of China [51002046, 51102082, 51202061, 21573062]; Natural Science Foundation for the Returned Overseas Scholars of Heilongjiang Province [LC2012C02]; Natural Science Foundation of Heilongjiang Province of China [B20130 ; National Natural Science Foundation of China [51002046, 51102082, 51202061, 21573062]; Natural Science Foundation for the Returned Overseas Scholars of Heilongjiang Province [LC2012C02]; Natural Science Foundation of Heilongjiang Province of China [B20130 ; National Natural Science Foundation of China [51002046, 51102082, 51202061, 21573062]; Natural Science Foundation for the Returned Overseas Scholars of Heilongjiang Province [LC2012C02]; Natural Science Foundation of Heilongjiang Province of China [B20130
WOS IDWOS:000367625000045
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/28256
Collection高密度光存储技术实验室
Corresponding Authorzmchen@siom.ac.cn; zyren@hlju.edu.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Wu, Hao,Chen, Zhimin,Zhang, Jialin,et al. Stably dispersed carbon nanotubes covalently bonded to phthalocyanine cobalt(II) for ppb-level H2S sensing at room temperature[J]. J. Mater. Chem. A,2016,4(3):1096.
APA Wu, Hao.,Chen, Zhimin.,Zhang, Jialin.,Wu, Feng.,He, Chunying.,...&zyren@hlju.edu.cn.(2016).Stably dispersed carbon nanotubes covalently bonded to phthalocyanine cobalt(II) for ppb-level H2S sensing at room temperature.J. Mater. Chem. A,4(3),1096.
MLA Wu, Hao,et al."Stably dispersed carbon nanotubes covalently bonded to phthalocyanine cobalt(II) for ppb-level H2S sensing at room temperature".J. Mater. Chem. A 4.3(2016):1096.
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