The monitoring of H 2S and SO 2 noxious gases from Industrial environment with sensors based on flame-spray-made SnO 2 nanoparticles
The noxious gas sensors were developed successfully using flame-spray-made SnO 2 nanoparticles as the sensing materials. The functionalized nanoparticle properties were further analyzed by XRD, BET and TEM analyses. The SnO 2 nanoparticles (SSA...
Saved in:
Main Authors: | , , , |
---|---|
Format: | Journal |
Published: |
2018
|
Subjects: | |
Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84863789931&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/51618 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Chiang Mai University |
id |
th-cmuir.6653943832-51618 |
---|---|
record_format |
dspace |
spelling |
th-cmuir.6653943832-516182018-09-04T06:05:23Z The monitoring of H 2S and SO 2 noxious gases from Industrial environment with sensors based on flame-spray-made SnO 2 nanoparticles Chaikarn Liewhiran Nittaya Tamaekong Anurat Wisitsora-at Sukon Phanichphant Engineering The noxious gas sensors were developed successfully using flame-spray-made SnO 2 nanoparticles as the sensing materials. The functionalized nanoparticle properties were further analyzed by XRD, BET and TEM analyses. The SnO 2 nanoparticles (SSA BET: 141.6 m 2/g) were investigated revealing non-agglomerated spherical, hexagonal, rectangle (3-10 nm), and rod-like (3-5 nm in width and 5-20 nm in length) morphologies. The sensing films were prepared by spin coating onto the Al 2O 3 substrates interdigitated with Au electrodes. The sensing films were significantly developed in order to detect with H 2S (0.5-10 ppm) and SO 2 (20-500 ppm) at the operating temperature ranging from 200-350°C. After sensing test, the cross-section of sensing film was analyzed by SEM analyses. It was found that SnO 2 sensing film showed higher sensitivity to H 2S gas with very fast response at lower concentrations (3s, to 10 ppm). The cross sensitivities of the sensor towards different concentrations of H 2S, CO, H 2, and C 2H 2 were measured at 300°C. The sensor evidently shows much less response to CO, H 2, and C 2H 2 than to H 2S indicating higher selectivity for H 2S of the SnO 2 sensor at the lower concentration (10 ppm). Therefore, the SnO 2 sensor was the most suitable candidate for the efficient detection of H 2S noxious gas. 2018-09-04T06:05:23Z 2018-09-04T06:05:23Z 2012-07-18 Journal 01258281 2-s2.0-84863789931 10.4186/ej.2012.16.3.123 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84863789931&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/51618 |
institution |
Chiang Mai University |
building |
Chiang Mai University Library |
country |
Thailand |
collection |
CMU Intellectual Repository |
topic |
Engineering |
spellingShingle |
Engineering Chaikarn Liewhiran Nittaya Tamaekong Anurat Wisitsora-at Sukon Phanichphant The monitoring of H 2S and SO 2 noxious gases from Industrial environment with sensors based on flame-spray-made SnO 2 nanoparticles |
description |
The noxious gas sensors were developed successfully using flame-spray-made SnO 2 nanoparticles as the sensing materials. The functionalized nanoparticle properties were further analyzed by XRD, BET and TEM analyses. The SnO 2 nanoparticles (SSA BET: 141.6 m 2/g) were investigated revealing non-agglomerated spherical, hexagonal, rectangle (3-10 nm), and rod-like (3-5 nm in width and 5-20 nm in length) morphologies. The sensing films were prepared by spin coating onto the Al 2O 3 substrates interdigitated with Au electrodes. The sensing films were significantly developed in order to detect with H 2S (0.5-10 ppm) and SO 2 (20-500 ppm) at the operating temperature ranging from 200-350°C. After sensing test, the cross-section of sensing film was analyzed by SEM analyses. It was found that SnO 2 sensing film showed higher sensitivity to H 2S gas with very fast response at lower concentrations (3s, to 10 ppm). The cross sensitivities of the sensor towards different concentrations of H 2S, CO, H 2, and C 2H 2 were measured at 300°C. The sensor evidently shows much less response to CO, H 2, and C 2H 2 than to H 2S indicating higher selectivity for H 2S of the SnO 2 sensor at the lower concentration (10 ppm). Therefore, the SnO 2 sensor was the most suitable candidate for the efficient detection of H 2S noxious gas. |
format |
Journal |
author |
Chaikarn Liewhiran Nittaya Tamaekong Anurat Wisitsora-at Sukon Phanichphant |
author_facet |
Chaikarn Liewhiran Nittaya Tamaekong Anurat Wisitsora-at Sukon Phanichphant |
author_sort |
Chaikarn Liewhiran |
title |
The monitoring of H 2S and SO 2 noxious gases from Industrial environment with sensors based on flame-spray-made SnO 2 nanoparticles |
title_short |
The monitoring of H 2S and SO 2 noxious gases from Industrial environment with sensors based on flame-spray-made SnO 2 nanoparticles |
title_full |
The monitoring of H 2S and SO 2 noxious gases from Industrial environment with sensors based on flame-spray-made SnO 2 nanoparticles |
title_fullStr |
The monitoring of H 2S and SO 2 noxious gases from Industrial environment with sensors based on flame-spray-made SnO 2 nanoparticles |
title_full_unstemmed |
The monitoring of H 2S and SO 2 noxious gases from Industrial environment with sensors based on flame-spray-made SnO 2 nanoparticles |
title_sort |
monitoring of h 2s and so 2 noxious gases from industrial environment with sensors based on flame-spray-made sno 2 nanoparticles |
publishDate |
2018 |
url |
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84863789931&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/51618 |
_version_ |
1681423802217529344 |