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...
Saved in:
Main Authors: | , , , |
---|---|
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 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Chiang Mai University |
id |
th-cmuir.6653943832-45655 |
---|---|
record_format |
dspace |
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 |
_version_ |
1681422785875804160 |