Effect of platinum impregnation on ZnO tetrapods for ethanol sensor

Platinum impregnated ZnO tetrapods were prepared and studied for the detection of ethanol vapor. ZnO tetrapods were synthesized by oxidation reaction technique by heating a mixer of zinc powder (99.99%) and hydrogen peroxide solution (30 wt.%) at 1, 000°C in air. Platinum was impregnated by dropping...

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Main Authors: Hongsith N., Choopun S.
Format: Conference or Workshop Item
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-62949133642&partnerID=40&md5=c51f26265113cd71709898caf767a06e
http://cmuir.cmu.ac.th/handle/6653943832/5382
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-53822014-08-30T02:56:28Z Effect of platinum impregnation on ZnO tetrapods for ethanol sensor Hongsith N. Choopun S. Platinum impregnated ZnO tetrapods were prepared and studied for the detection of ethanol vapor. ZnO tetrapods were synthesized by oxidation reaction technique by heating a mixer of zinc powder (99.99%) and hydrogen peroxide solution (30 wt.%) at 1, 000°C in air. Platinum was impregnated by dropping hydrogen hexachloroplatinate (IV) hydrate, H2Cl6Pt.aq, solution with different concentration on ZnO tetrapods and then, heated at 350°C for 1 hr. The platinum impregnated ZnO tetrapods were characterized by field emission scanning electron microscopy (FE-SEM) and energy dispersive spectroscopy (EDS) for morphology and chemical composition, respectively. The particles were observed on the surface of ZnO tetrapods. The EDS spectrum suggested that the particles were platinum. Platinum impregnated ZnO tetrapods were tested ethanol sensing properties under ethanol concentration of 50-1,000 ppm. The ethanol sensing results indicated that the sensitivity of the sensors depended on the platinum impregnated concentration. Moreover, the sensors based on platinum impregnated ZnO tetrapods of 0.035 wt.% exhibited higher sensitivity compare to those of non-impregnation ZnO tetrapods. © 2008 Trans Tech Publications, Switzerland. 2014-08-30T02:56:28Z 2014-08-30T02:56:28Z 2008 Conference Paper 9780878493562 10226680 75596 http://www.scopus.com/inward/record.url?eid=2-s2.0-62949133642&partnerID=40&md5=c51f26265113cd71709898caf767a06e http://cmuir.cmu.ac.th/handle/6653943832/5382 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Platinum impregnated ZnO tetrapods were prepared and studied for the detection of ethanol vapor. ZnO tetrapods were synthesized by oxidation reaction technique by heating a mixer of zinc powder (99.99%) and hydrogen peroxide solution (30 wt.%) at 1, 000°C in air. Platinum was impregnated by dropping hydrogen hexachloroplatinate (IV) hydrate, H2Cl6Pt.aq, solution with different concentration on ZnO tetrapods and then, heated at 350°C for 1 hr. The platinum impregnated ZnO tetrapods were characterized by field emission scanning electron microscopy (FE-SEM) and energy dispersive spectroscopy (EDS) for morphology and chemical composition, respectively. The particles were observed on the surface of ZnO tetrapods. The EDS spectrum suggested that the particles were platinum. Platinum impregnated ZnO tetrapods were tested ethanol sensing properties under ethanol concentration of 50-1,000 ppm. The ethanol sensing results indicated that the sensitivity of the sensors depended on the platinum impregnated concentration. Moreover, the sensors based on platinum impregnated ZnO tetrapods of 0.035 wt.% exhibited higher sensitivity compare to those of non-impregnation ZnO tetrapods. © 2008 Trans Tech Publications, Switzerland.
format Conference or Workshop Item
author Hongsith N.
Choopun S.
spellingShingle Hongsith N.
Choopun S.
Effect of platinum impregnation on ZnO tetrapods for ethanol sensor
author_facet Hongsith N.
Choopun S.
author_sort Hongsith N.
title Effect of platinum impregnation on ZnO tetrapods for ethanol sensor
title_short Effect of platinum impregnation on ZnO tetrapods for ethanol sensor
title_full Effect of platinum impregnation on ZnO tetrapods for ethanol sensor
title_fullStr Effect of platinum impregnation on ZnO tetrapods for ethanol sensor
title_full_unstemmed Effect of platinum impregnation on ZnO tetrapods for ethanol sensor
title_sort effect of platinum impregnation on zno tetrapods for ethanol sensor
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-62949133642&partnerID=40&md5=c51f26265113cd71709898caf767a06e
http://cmuir.cmu.ac.th/handle/6653943832/5382
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