Enhanced NH 3 -sensing behavior of 2,9,16,23-tetrakis(2,2,3,3-tetrafluoropropoxy) metal(II) phthalocyanine/multi-walled carbon nanotube hybrids: An investigation of the effects of central metals

Liang, Xiuhua; Chen, Zhimin; Wu, Hao; Guo, Liangxiao; He, Chao; Wang, Bin; Wu, Yiqun

doi:10.1016/j.carbon.2014.08.065

Cited by 90 publications

(71 citation statements)

References 70 publications

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“…Pairing CNTs with such systems having photoactive properties can lead to the development of devices for energy conversion, analyte sensing or catalytic systems. Several studies have thus been conducted in which CNTs are non-covalently functionalized by metalloporphyrins [213][214][215][216][217][218][219][220][221][222][223][224][225][226][227][228] or phthalocyanines [220,[229][230][231][232].…”

Section: Supportmentioning

confidence: 99%

Coordination chemistry on carbon surfaces

Axet¹,

Dechy‐Cabaret²,

Durand³

et al. 2016

Coordination Chemistry Reviews

112

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Section: Supportmentioning

confidence: 99%

Coordination chemistry on carbon surfaces

Axet¹,

Dechy‐Cabaret²,

Durand³

et al. 2016

Coordination Chemistry Reviews

112

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“…12 In addition, various kinds of MPcs based hybrid structures such as polypyrrole/ phthalocyanine, TFPMPCs/MWCNT, CoPc functionalized by carbon nanotube etc., have also been employed in gas the sensing applications. [20][21][22][23] In addition, several other materials used for the detection of Cl 2 have been summarized in Table 1. [24][25][26][27][28][29][30][31][32][33] The sensitivity and operating temperature of these sensors have also been shown.…”

Section: 13mentioning

confidence: 99%

Enhanced Cl₂ sensitivity of cobalt-phthalocyanine film by utilizing a porous nanostructured surface fabricated on glass

et al. 2017

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In this paper, we demonstrate a very simple and effective approach to improve the sensitivity and the low detection limit of cobalt phthalocyanine (CoPc) films towards the detection of chlorine by creating a porous nanostructured surface on a glass substrate via a vapor phase etching process. CoPc films grown on etched glass (CoPc-etched films) exhibited entirely different morphology as compared to CoPc films grown on plain glass (CoPc-plain films). For 60 nm thickness, randomly distributed CoPc nanostructures were grown on the etched surface, whereas the CoPc-plain film showed an elongated granular structure. For 250 ppb Cl 2 exposure, the CoPc-etched film showed a response of $105%, which is $5 times higher than the CoPc-plain film (20%). In addition, it can detect Cl 2 down to 100 ppb concentration; this low detection limit is superior to CoPc-plain film (250 ppb). The improved gas sensing property of CoPc-etched film is ascribed to the presence of more interaction sites for gas adsorption, which is confirmed by charge transport, X-ray photoelectron spectroscopy and Kelvin probe measurement. This novel approach of improving the sensitivity and low detection limit paves a new way for the application of surface etching in the gas sensing field of organic semiconductors.

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“…1 Its global production exceeds 100 million tons per year. 2 Such a colorless gas with pungent odor is not only harmful to human's health but 25 also has negative impact on the surrounding environment and ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticle cluster gas sensor: Pt activated SnO₂ nanoparticles for NH₃ detection with ultrahigh sensitivity

et al. 2015

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Pt activated SnO2 nanoparticle clusters were synthesized by a simple solvothermal method. The structure, morphology, chemical state and specific surface area were analyzed by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and N2-sorption studies, respectively. The SnO2 nanoparticle cluster matrix consists of tens of thousands of SnO2 nanoparticles with an ultra-small grain size estimated to be 3.0 nm. And there are abundant random-packed wormhole-like pores, caused by the inter-connection of the SnO2 nanoparticles, throughout each cluster. The platinum element is present in two forms including metal (Pt) and tetravalent metal oxide (PtO2) in the Pt activated SnO2 nanoparticle clusters. The as-synthesized pure and Pt activated SnO2 nanoparticle clusters were used to fabricate gas sensor devices. It was found that the gas response toward 500 ppm of ammonia was improved from 6.48 to 203.44 through the activation by Pt. And the results indicate that the sensor based on Pt activated SnO2 not only has ultrahigh sensitivity but also possesses good response-recovery properties, linear dependence, repeatability, selectivity and long-term stability, demonstrating the potential to use Pt activated SnO2 nanoparticle clusters as ammonia gas sensors. At the same time, the formation mechanisms of the unique nanoparticle clusters and highly enhanced sensitivity are also discussed.

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Enhanced NH 3 -sensing behavior of 2,9,16,23-tetrakis(2,2,3,3-tetrafluoropropoxy) metal(II) phthalocyanine/multi-walled carbon nanotube hybrids: An investigation of the effects of central metals

Cited by 90 publications

References 70 publications

Coordination chemistry on carbon surfaces

Coordination chemistry on carbon surfaces

Enhanced Cl₂ sensitivity of cobalt-phthalocyanine film by utilizing a porous nanostructured surface fabricated on glass

Nanoparticle cluster gas sensor: Pt activated SnO₂ nanoparticles for NH₃ detection with ultrahigh sensitivity

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Enhanced NH 3 -sensing behavior of 2,9,16,23-tetrakis(2,2,3,3-tetrafluoropropoxy) metal(II) phthalocyanine/multi-walled carbon nanotube hybrids: An investigation of the effects of central metals

Cited by 90 publications

References 70 publications

Coordination chemistry on carbon surfaces

Coordination chemistry on carbon surfaces

Enhanced Cl2 sensitivity of cobalt-phthalocyanine film by utilizing a porous nanostructured surface fabricated on glass

Nanoparticle cluster gas sensor: Pt activated SnO2 nanoparticles for NH3 detection with ultrahigh sensitivity

Contact Info

Product

Resources

About

Enhanced Cl₂ sensitivity of cobalt-phthalocyanine film by utilizing a porous nanostructured surface fabricated on glass

Nanoparticle cluster gas sensor: Pt activated SnO₂ nanoparticles for NH₃ detection with ultrahigh sensitivity