Highly sensitive and selective ethylene gas sensors based on CeO<inf>x</inf>-SnO<inf>2</inf> nanocomposites prepared by a Co-precipitation method
© 2020 Elsevier B.V. CeOx-SnO2 nanocomposites (NCs) with different Ce:Sn compositions of 0:100, 20:80, 25:75, 33:67, 50:50 and 100:0 were synthesized via a two-reactant co-precipitation method. The phase, morphology, particles size, elemental composition and chemical state of as-prepared CeOx-SnO2 n...
Saved in:
Main Authors: | , , , , , |
---|---|
Format: | Journal |
Published: |
2020
|
Subjects: | |
Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85087748500&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/70677 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Chiang Mai University |
id |
th-cmuir.6653943832-70677 |
---|---|
record_format |
dspace |
spelling |
th-cmuir.6653943832-706772020-10-14T08:48:39Z Highly sensitive and selective ethylene gas sensors based on CeO<inf>x</inf>-SnO<inf>2</inf> nanocomposites prepared by a Co-precipitation method Pimpan Leangtanom Anurat Wisitsoraat Kata Jaruwongrungsee Narong Chanlek Sukon Phanichphant Viruntachar Kruefu Materials Science Physics and Astronomy © 2020 Elsevier B.V. CeOx-SnO2 nanocomposites (NCs) with different Ce:Sn compositions of 0:100, 20:80, 25:75, 33:67, 50:50 and 100:0 were synthesized via a two-reactant co-precipitation method. The phase, morphology, particles size, elemental composition and chemical state of as-prepared CeOx-SnO2 nanoparticles (NPs) were characterized by X-ray diffraction, nitrogen adsorption, electron microscopy and X-ray spectroscopy. The results revealed that the highly crystalline solid solution phases structure of CeOx-SnO2 were formed exhibiting approximately round morphologies with average particles sizes of ~5–20 nm. The sensor properties towards ethylene gas were characterized in terms of response, response times, stability and selectivity. The gas-sensing data showed that the addition of CeOx to SnO2 provided significant enhancement of ethylene response and the CeOx-SnO2 NPs (Ce:Sn = 33:67) offered the highest response of 5.18 with a short response time of 12 s to 10 ppm ethylene at 350 °C. Additionally, the sensor exhibited a low minimum detectable ethylene concentration of 0.3 ppm, high ethylene selectivity and good stability. Therefore, the sensor based on coprecipitated CeOx-SnO2 NPs could ce a promising candidate for detection of ethylene in fruit-ripeness monitoring applications. 2020-10-14T08:37:59Z 2020-10-14T08:37:59Z 2020-11-01 Journal 02540584 2-s2.0-85087748500 10.1016/j.matchemphys.2020.123540 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85087748500&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/70677 |
institution |
Chiang Mai University |
building |
Chiang Mai University Library |
continent |
Asia |
country |
Thailand Thailand |
content_provider |
Chiang Mai University Library |
collection |
CMU Intellectual Repository |
topic |
Materials Science Physics and Astronomy |
spellingShingle |
Materials Science Physics and Astronomy Pimpan Leangtanom Anurat Wisitsoraat Kata Jaruwongrungsee Narong Chanlek Sukon Phanichphant Viruntachar Kruefu Highly sensitive and selective ethylene gas sensors based on CeO<inf>x</inf>-SnO<inf>2</inf> nanocomposites prepared by a Co-precipitation method |
description |
© 2020 Elsevier B.V. CeOx-SnO2 nanocomposites (NCs) with different Ce:Sn compositions of 0:100, 20:80, 25:75, 33:67, 50:50 and 100:0 were synthesized via a two-reactant co-precipitation method. The phase, morphology, particles size, elemental composition and chemical state of as-prepared CeOx-SnO2 nanoparticles (NPs) were characterized by X-ray diffraction, nitrogen adsorption, electron microscopy and X-ray spectroscopy. The results revealed that the highly crystalline solid solution phases structure of CeOx-SnO2 were formed exhibiting approximately round morphologies with average particles sizes of ~5–20 nm. The sensor properties towards ethylene gas were characterized in terms of response, response times, stability and selectivity. The gas-sensing data showed that the addition of CeOx to SnO2 provided significant enhancement of ethylene response and the CeOx-SnO2 NPs (Ce:Sn = 33:67) offered the highest response of 5.18 with a short response time of 12 s to 10 ppm ethylene at 350 °C. Additionally, the sensor exhibited a low minimum detectable ethylene concentration of 0.3 ppm, high ethylene selectivity and good stability. Therefore, the sensor based on coprecipitated CeOx-SnO2 NPs could ce a promising candidate for detection of ethylene in fruit-ripeness monitoring applications. |
format |
Journal |
author |
Pimpan Leangtanom Anurat Wisitsoraat Kata Jaruwongrungsee Narong Chanlek Sukon Phanichphant Viruntachar Kruefu |
author_facet |
Pimpan Leangtanom Anurat Wisitsoraat Kata Jaruwongrungsee Narong Chanlek Sukon Phanichphant Viruntachar Kruefu |
author_sort |
Pimpan Leangtanom |
title |
Highly sensitive and selective ethylene gas sensors based on CeO<inf>x</inf>-SnO<inf>2</inf> nanocomposites prepared by a Co-precipitation method |
title_short |
Highly sensitive and selective ethylene gas sensors based on CeO<inf>x</inf>-SnO<inf>2</inf> nanocomposites prepared by a Co-precipitation method |
title_full |
Highly sensitive and selective ethylene gas sensors based on CeO<inf>x</inf>-SnO<inf>2</inf> nanocomposites prepared by a Co-precipitation method |
title_fullStr |
Highly sensitive and selective ethylene gas sensors based on CeO<inf>x</inf>-SnO<inf>2</inf> nanocomposites prepared by a Co-precipitation method |
title_full_unstemmed |
Highly sensitive and selective ethylene gas sensors based on CeO<inf>x</inf>-SnO<inf>2</inf> nanocomposites prepared by a Co-precipitation method |
title_sort |
highly sensitive and selective ethylene gas sensors based on ceo<inf>x</inf>-sno<inf>2</inf> nanocomposites prepared by a co-precipitation method |
publishDate |
2020 |
url |
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85087748500&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/70677 |
_version_ |
1681752946282332160 |