Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature

Ameer Azam,1 Sami S Habib,1 Numan A Salah,1 Faheem Ahmed21Centre of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia; 2School of Nano and Advanced Materials Engineering, Changwon National University, Changwon, South KoreaAbstract: High-quality single-crystalline SnO2 nanorods were syn...

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Autores principales:	Azam A, Habib SS, Salah NA, Ahmed F
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2013
Materias:	Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/883d7e5477064faf9efccf992579f38c
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spelling	oai:doaj.org-article:883d7e5477064faf9efccf992579f38c2021-12-02T00:40:17ZMicrowave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature1176-91141178-2013https://doaj.org/article/883d7e5477064faf9efccf992579f38c2013-10-01T00:00:00Zhttp://www.dovepress.com/microwave-assisted-synthesis-of-sno2-nanorods-for-oxygen-gas-sensing-a-a14622https://doaj.org/toc/1176-9114https://doaj.org/toc/1178-2013Ameer Azam,1 Sami S Habib,1 Numan A Salah,1 Faheem Ahmed21Centre of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia; 2School of Nano and Advanced Materials Engineering, Changwon National University, Changwon, South KoreaAbstract: High-quality single-crystalline SnO2 nanorods were synthesized using a microwave-assisted solution method. The nanorods were characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), ultraviolet-visible and Raman spectroscopy, Brunauer–Emmett–Teller (BET), and electrical resistance measurements. The XRD pattern indicated the formation of single-phase SnO2 nanorods with rutile structure. FE-SEM and TEM images revealed tetragonal nanorods of about 450–500 nm in length and 60–80 nm in diameter. The nanorods showed a higher BET surface area of 288 m2/g, much higher than that of previously reported work. The Raman scattering spectra indicated a typical rutile phase of the SnO2. The absorption spectrum showed an absorption peak centered at 340 nm, and the band-gap value was found to be 3.64 eV. The gas-sensing properties of the SnO2 nanorods for oxygen gas with different concentrations were measured at room temperature. It was found that the value of resistance increased with the increase in oxygen gas concentration in the test chamber. The SnO2 nanorods exhibited high sensitivity and rapid response-recovery characteristics to oxygen gas, and could detect oxygen concentration as low as 1, 3, 5, and 10 ppm.Keywords: SnO2, nanorods, microwave, gas sensorAzam AHabib SSSalah NAAhmed FDove Medical PressarticleMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol 2013, Iss Issue 1, Pp 3875-3882 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine (General) R5-920
spellingShingle	Medicine (General) R5-920 Azam A Habib SS Salah NA Ahmed F Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature
description	Ameer Azam,1 Sami S Habib,1 Numan A Salah,1 Faheem Ahmed21Centre of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia; 2School of Nano and Advanced Materials Engineering, Changwon National University, Changwon, South KoreaAbstract: High-quality single-crystalline SnO2 nanorods were synthesized using a microwave-assisted solution method. The nanorods were characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), ultraviolet-visible and Raman spectroscopy, Brunauer–Emmett–Teller (BET), and electrical resistance measurements. The XRD pattern indicated the formation of single-phase SnO2 nanorods with rutile structure. FE-SEM and TEM images revealed tetragonal nanorods of about 450–500 nm in length and 60–80 nm in diameter. The nanorods showed a higher BET surface area of 288 m2/g, much higher than that of previously reported work. The Raman scattering spectra indicated a typical rutile phase of the SnO2. The absorption spectrum showed an absorption peak centered at 340 nm, and the band-gap value was found to be 3.64 eV. The gas-sensing properties of the SnO2 nanorods for oxygen gas with different concentrations were measured at room temperature. It was found that the value of resistance increased with the increase in oxygen gas concentration in the test chamber. The SnO2 nanorods exhibited high sensitivity and rapid response-recovery characteristics to oxygen gas, and could detect oxygen concentration as low as 1, 3, 5, and 10 ppm.Keywords: SnO2, nanorods, microwave, gas sensor
format	article
author	Azam A Habib SS Salah NA Ahmed F
author_facet	Azam A Habib SS Salah NA Ahmed F
author_sort	Azam A
title	Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature
title_short	Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature
title_full	Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature
title_fullStr	Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature
title_full_unstemmed	Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature
title_sort	microwave-assisted synthesis of sno2 nanorods for oxygen gas sensing at room temperature
publisher	Dove Medical Press
publishDate	2013
url	https://doaj.org/article/883d7e5477064faf9efccf992579f38c
work_keys_str_mv	AT azama microwaveassistedsynthesisofsno2nanorodsforoxygengassensingatroomtemperature AT habibss microwaveassistedsynthesisofsno2nanorodsforoxygengassensingatroomtemperature AT salahna microwaveassistedsynthesisofsno2nanorodsforoxygengassensingatroomtemperature AT ahmedf microwaveassistedsynthesisofsno2nanorodsforoxygengassensingatroomtemperature
_version_	1718403567480471552

Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature

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