Ammonia detection of 1-D ZnO/polypyrrole nanocomposite: Effect of CSA doping and their structural, chemical, thermal and gas sensing behavior

Jain, Shilpa; Karmakar, Narayan; Shah, Akshara P.; Kothari, D.C.; Mishra, Satyendra; Shimpi, Navinchandra G.

doi:10.1016/j.apsusc.2016.11.154

Cited by 64 publications

(27 citation statements)

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“…Formed ZnO‐NRs/MIP‐Ppy nanocomposite showed several new peaks at 1049, 1249, 1379, 1591, 2885, 2980 and 3423 cm −1 , which are corresponding to Ppy, formed over ZnO‐NRs. Bare Ppy has absorption peaks at 792 (CH wagging), 912 (plane ring deformation), 1044 (CH in plane vibration), 1120 (CH stretching), 1204 (CN stretching), 1289 (CC stretching), 1409 (CN stretching in benzoyl ring), 1556 (CC stretching in benzoyl ring), 1719 (CN), 2852 (stretching CH2), 2926 (antisymmetric stretching CH2), and 3115–3300 cm −1 (NH stretching) . According to results, reported in other researches, the quenching and shifting of FTIR peaks of Ppy after the electrochemical deposition on ZnO point to forming of nanocomposite.…”

Section: Resultsmentioning

confidence: 53%

“…Bare Ppy has absorption peaks at 792 (CH wagging), 912 (plane ring deformation), 1044 (CH in plane vibration), 1120 (CH stretching), 1204 (CN stretching), 1289 (CC stretching), 1409 (CN stretching in benzoyl ring), 1556 (CC stretching in benzoyl ring), 1719 (CN), 2852 (stretching CH2), 2926 (antisymmetric stretching CH2), and 3115–3300 cm −1 (NH stretching) . According to results, reported in other researches, the quenching and shifting of FTIR peaks of Ppy after the electrochemical deposition on ZnO point to forming of nanocomposite. In other researches has been supposed that hydrogen bonds are formed between oxygen of ZnO‐nanorod‐structure and hydrogen involved in NH groups of Ppy …”

Section: Resultsmentioning

confidence: 53%

“…According to results, reported in other researches, the quenching and shifting of FTIR peaks of Ppy after the electrochemical deposition on ZnO point to forming of nanocomposite. In other researches has been supposed that hydrogen bonds are formed between oxygen of ZnO‐nanorod‐structure and hydrogen involved in NH groups of Ppy …”

Section: Resultsmentioning

confidence: 61%

“…To improve selectivity, the surface of ZnO nanostructures can be effectively functionalized by different groups, which are suitable for covalent binding of biomolecules . Moreover, ZnO nanostructures are compatible with other organic nanomaterials, such as conducting polymers (CP), therefore, nanocomposites based on ZnO and conducting polymers are used for sensor design …”

Section: Introductionmentioning

confidence: 99%

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Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

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Kunene

Genys

et al. 2019

Macro Chemistry & Physics

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Molecularly imprinted polymers are important tools for the design of sensors and other molecular recognition based analytical systems. In this paper the development of a photoelectrochemical sensor for selective bisphenol determination is reported. The sensor is based on a glass/ZnO/MIP‐Ppy structure consisting of glass modified by a ZnO layer (glass/ZnO), which is functionalized by molecularly imprinted conducting polymer polypyrrole (MIP‐Ppy). The sensitivity of the sensor to bisphenol is in the range of 0.7–12.5 µm. Selectivity tests to other bisphenolic compounds are performed. Some aspects of a photoinduced response mechanism in glass/ZnO/MIP‐Ppy nanostructures are predicted and discussed.

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Section: Resultsmentioning

confidence: 53%

Section: Resultsmentioning

confidence: 53%

Section: Resultsmentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

Viter

Kunene

Genys

et al. 2019

Macro Chemistry & Physics

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“…Such type of materials have good gas sensing properties because the target gas on interaction with, produces change in the electrical resistance of the depleted region . The composites of PPy have been synthesized and applied as practical gas sensors . The composites of MnO 2 with other metal oxides have worked well for gas detection but at higher temperature .…”

Section: Introductionmentioning

confidence: 99%

Highly selective and sensitive response of Polypyrrole–MnO₂ based composites towards ammonia gas

et al. 2018

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Polypyrrole (PPy) and PPy/MnO2 composites of varying wt% of MnO2 were synthesized by chemical oxidation polymerization. The synthesis of the required samples was confirmed by Fourier transform infrared spectroscopic studies. The PPy was amorphous and all its composites with MnO2 were of crystalline nature as confirmed by x‐ray diffraction analyses. The PPy was of globular morphology while the composites were of elongated shape maintaining the morphology of MnO2 as ratified by scanning electron microscopy. The actual relative amount of MnO2 in the composites was greater than the amount added. The gas sensitivity and selectivity of the samples was checked for ammonia gas and some organic liquid vapors using LCR (L = inductance, C = capacitance, R = resistance) meter as resistance detector. The effect of MnO2 amount in the composites, concentration of ammonia and working temperature was studied on sensitivity of the materials. The composite with 10 wt% of MnO2 was found to be of the best performance having working range of 1–30 ppm and limit of detection 0.4 ppm. Similarly, this material showed excellent dynamic response, sensitivity and selectivity towards ammonia gas with response and recovery time of 32 and 40 s respectively. POLYM. COMPOS., 40:1676–1683, 2019. © 2018 Society of Plastics Engineers

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Polyaniline/zinc oxide nanocomposite as room‐temperature sensing layer for methane

Sen

Mishra

Sonawane

et al. 2017

Polymer Engineering & Sci

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Methane detection in ambient condition has become essential as it is being increasingly used as compressed natural gas in many industrial processes and for domestic and transportation purposes. Hence, in this work, we report a room‐temperature methane sensor based on polyaniline/zinc oxide (PANI/ZnO) nanocomposite. The PANI/ZnO nanocomposite was prepared by chemical polymerization of aniline in the presence of ZnO nanoparticles. Electron microscopy results revealed the successful formation of nanocomposites with rod‐like ZnO nanoparticles embedded into the network of nanofibrillar PANI matrix. The PANI/ZnO nanocomposites exhibited a high response to methane at room temperature within a short response time of 20 s for a methane concentration (500 ppm) much lower than its flammability limit. Moreover, the humidity dependence of the sensor response was found to be very low. POLYM. ENG. SCI., 58:1438–1445, 2018. © 2017 Society of Plastics Engineers

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Ammonia detection of 1-D ZnO/polypyrrole nanocomposite: Effect of CSA doping and their structural, chemical, thermal and gas sensing behavior

Cited by 64 publications

References 50 publications

Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

Highly selective and sensitive response of Polypyrrole–MnO₂ based composites towards ammonia gas

Polyaniline/zinc oxide nanocomposite as room‐temperature sensing layer for methane

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Ammonia detection of 1-D ZnO/polypyrrole nanocomposite: Effect of CSA doping and their structural, chemical, thermal and gas sensing behavior

Cited by 64 publications

References 50 publications

Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

Photoelectrochemical Bisphenol S Sensor Based on ZnO‐Nanoroads Modified by Molecularly Imprinted Polypyrrole

Highly selective and sensitive response of Polypyrrole–MnO2 based composites towards ammonia gas

Polyaniline/zinc oxide nanocomposite as room‐temperature sensing layer for methane

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Product

Resources

About

Highly selective and sensitive response of Polypyrrole–MnO₂ based composites towards ammonia gas