Gas sensing properties of conducting polymer/Au-loaded ZnO nanoparticle composite materials at room temperature

© 2014, Kruefu et al.; licensee Springer. In this work, a new poly (3-hexylthiophene):1.00 mol% Au-loaded zinc oxide nanoparticles (P3HT:Au/ZnO NPs) hybrid sensor is developed and systematically studied for ammonia sensing applications. The 1.00 mol% Au/ZnO NPs were synthesized by a one-step flame s...

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Main Authors: Viruntachar Kruefu, Anurat Wisitsoraat, Adisorn Tuantranont, Sukon Phanichphant
Format: Journal
Published: 2018
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84919924263&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/45655
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spelling th-cmuir.6653943832-456552018-01-24T06:14:35Z Gas sensing properties of conducting polymer/Au-loaded ZnO nanoparticle composite materials at room temperature Viruntachar Kruefu Anurat Wisitsoraat Adisorn Tuantranont Sukon Phanichphant © 2014, Kruefu et al.; licensee Springer. In this work, a new poly (3-hexylthiophene):1.00 mol% Au-loaded zinc oxide nanoparticles (P3HT:Au/ZnO NPs) hybrid sensor is developed and systematically studied for ammonia sensing applications. The 1.00 mol% Au/ZnO NPs were synthesized by a one-step flame spray pyrolysis (FSP) process and mixed with P3HT at different mixing ratios (1:1, 2:1, 3:1, 4:1, and 1:2) before drop casting on an Al 2 O 3 substrate with interdigitated gold electrodes to form thick film sensors. Particle characterizations by X-ray diffraction (XRD), nitrogen adsorption analysis, and high-resolution transmission electron microscopy (HR-TEM) showed highly crystalline ZnO nanoparticles (5 to 15 nm) loaded with ultrafine Au nanoparticles (1 to 2 nm). Film characterizations by XRD, field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray (EDX) spectroscopy, and atomic force microscopy (AFM) revealed the presence of P3HT/ZnO mixed phases and porous nanoparticle structures in the composite thick film. The gas sensing properties of P3HT:1.00 mol% Au/ZnO NPs composite sensors were studied for reducing and oxidizing gases (NH 3 , C 2 H 5 OH, CO, H 2 S, NO 2 , and H 2 O) at room temperature. It was found that the composite film with 4:1 of P3HT:1.00 mol% Au/ZnO NPs exhibited the best NH 3 sensing performances with high response (approximately 32 to 1,000 ppm of NH 3 ), fast response time (4.2 s), and high selectivity at room temperature. Plausible mechanisms explaining the enhanced NH 3 response by composite films were discussed. 2018-01-24T06:14:35Z 2018-01-24T06:14:35Z 2014-01-01 Journal 1556276X 19317573 2-s2.0-84919924263 10.1186/1556-276X-9-467 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84919924263&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/45655
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description © 2014, Kruefu et al.; licensee Springer. In this work, a new poly (3-hexylthiophene):1.00 mol% Au-loaded zinc oxide nanoparticles (P3HT:Au/ZnO NPs) hybrid sensor is developed and systematically studied for ammonia sensing applications. The 1.00 mol% Au/ZnO NPs were synthesized by a one-step flame spray pyrolysis (FSP) process and mixed with P3HT at different mixing ratios (1:1, 2:1, 3:1, 4:1, and 1:2) before drop casting on an Al 2 O 3 substrate with interdigitated gold electrodes to form thick film sensors. Particle characterizations by X-ray diffraction (XRD), nitrogen adsorption analysis, and high-resolution transmission electron microscopy (HR-TEM) showed highly crystalline ZnO nanoparticles (5 to 15 nm) loaded with ultrafine Au nanoparticles (1 to 2 nm). Film characterizations by XRD, field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray (EDX) spectroscopy, and atomic force microscopy (AFM) revealed the presence of P3HT/ZnO mixed phases and porous nanoparticle structures in the composite thick film. The gas sensing properties of P3HT:1.00 mol% Au/ZnO NPs composite sensors were studied for reducing and oxidizing gases (NH 3 , C 2 H 5 OH, CO, H 2 S, NO 2 , and H 2 O) at room temperature. It was found that the composite film with 4:1 of P3HT:1.00 mol% Au/ZnO NPs exhibited the best NH 3 sensing performances with high response (approximately 32 to 1,000 ppm of NH 3 ), fast response time (4.2 s), and high selectivity at room temperature. Plausible mechanisms explaining the enhanced NH 3 response by composite films were discussed.
format Journal
author Viruntachar Kruefu
Anurat Wisitsoraat
Adisorn Tuantranont
Sukon Phanichphant
spellingShingle Viruntachar Kruefu
Anurat Wisitsoraat
Adisorn Tuantranont
Sukon Phanichphant
Gas sensing properties of conducting polymer/Au-loaded ZnO nanoparticle composite materials at room temperature
author_facet Viruntachar Kruefu
Anurat Wisitsoraat
Adisorn Tuantranont
Sukon Phanichphant
author_sort Viruntachar Kruefu
title Gas sensing properties of conducting polymer/Au-loaded ZnO nanoparticle composite materials at room temperature
title_short Gas sensing properties of conducting polymer/Au-loaded ZnO nanoparticle composite materials at room temperature
title_full Gas sensing properties of conducting polymer/Au-loaded ZnO nanoparticle composite materials at room temperature
title_fullStr Gas sensing properties of conducting polymer/Au-loaded ZnO nanoparticle composite materials at room temperature
title_full_unstemmed Gas sensing properties of conducting polymer/Au-loaded ZnO nanoparticle composite materials at room temperature
title_sort gas sensing properties of conducting polymer/au-loaded zno nanoparticle composite materials at room temperature
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84919924263&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/45655
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