Successive reduction for preparation of various Pd<inf>x</inf>Pt<inf>y</inf>-MWCNTs catalysts for formic acid oxidation

© 2016, Chiang Mai University. All rights reserved. The development of catalysts for fuel cell electrode is our approach. Platinum (Pt) and palladium (Pd) were used to prepare various Pd x Pt y catalysts by reduction method to study their electrocatalytic activities of the formic acid oxidation rea...

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Main Authors: Wongthep P., Waenkaew P., Sarakonsri T., Lapanantnoppakhun S., Saipanya S.
Format: Journal
Published: 2017
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84961771397&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/42200
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spelling th-cmuir.6653943832-422002017-09-28T04:25:45Z Successive reduction for preparation of various Pd<inf>x</inf>Pt<inf>y</inf>-MWCNTs catalysts for formic acid oxidation Wongthep P. Waenkaew P. Sarakonsri T. Lapanantnoppakhun S. Saipanya S. © 2016, Chiang Mai University. All rights reserved. The development of catalysts for fuel cell electrode is our approach. Platinum (Pt) and palladium (Pd) were used to prepare various Pd x Pt y catalysts by reduction method to study their electrocatalytic activities of the formic acid oxidation reaction. The support used multi-walled carbon nanotubes (MWCNTs) was functionalized by mixed solution of HNO 3 and H 2 SO 4 to promote oxygen-containing functional groups and then further load the catalyst nanoparticles onto that functionalized MWCNT surface. The functionalized MWCNTs were characterized their functional groups by Fourier transform infrared spectroscopy (FT-IR) while X-ray diffraction (XRD) was used to probing of the prepared catalyst compositions. The prepared Pd x Pt y -MWCNT catalyst electrodes were studied in electrooxidation of formic acid by cyclic voltammetry (CV) and chronoamperometry (CA). The prepared Pd x Pt y -MWCNT catalysts results show excellent activities and stabilities for the formic acid electrooxidation indicated by their lower onset potential and higher current density peak. Incorporation of Pt and Pd on the functionalized MWCNTs matrix enhances the electrochemical active surface area to achieve the catalytic oxidation reactions. 2017-09-28T04:25:45Z 2017-09-28T04:25:45Z 2016-01-01 Journal 01252526 2-s2.0-84961771397 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84961771397&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/42200
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description © 2016, Chiang Mai University. All rights reserved. The development of catalysts for fuel cell electrode is our approach. Platinum (Pt) and palladium (Pd) were used to prepare various Pd x Pt y catalysts by reduction method to study their electrocatalytic activities of the formic acid oxidation reaction. The support used multi-walled carbon nanotubes (MWCNTs) was functionalized by mixed solution of HNO 3 and H 2 SO 4 to promote oxygen-containing functional groups and then further load the catalyst nanoparticles onto that functionalized MWCNT surface. The functionalized MWCNTs were characterized their functional groups by Fourier transform infrared spectroscopy (FT-IR) while X-ray diffraction (XRD) was used to probing of the prepared catalyst compositions. The prepared Pd x Pt y -MWCNT catalyst electrodes were studied in electrooxidation of formic acid by cyclic voltammetry (CV) and chronoamperometry (CA). The prepared Pd x Pt y -MWCNT catalysts results show excellent activities and stabilities for the formic acid electrooxidation indicated by their lower onset potential and higher current density peak. Incorporation of Pt and Pd on the functionalized MWCNTs matrix enhances the electrochemical active surface area to achieve the catalytic oxidation reactions.
format Journal
author Wongthep P.
Waenkaew P.
Sarakonsri T.
Lapanantnoppakhun S.
Saipanya S.
spellingShingle Wongthep P.
Waenkaew P.
Sarakonsri T.
Lapanantnoppakhun S.
Saipanya S.
Successive reduction for preparation of various Pd<inf>x</inf>Pt<inf>y</inf>-MWCNTs catalysts for formic acid oxidation
author_facet Wongthep P.
Waenkaew P.
Sarakonsri T.
Lapanantnoppakhun S.
Saipanya S.
author_sort Wongthep P.
title Successive reduction for preparation of various Pd<inf>x</inf>Pt<inf>y</inf>-MWCNTs catalysts for formic acid oxidation
title_short Successive reduction for preparation of various Pd<inf>x</inf>Pt<inf>y</inf>-MWCNTs catalysts for formic acid oxidation
title_full Successive reduction for preparation of various Pd<inf>x</inf>Pt<inf>y</inf>-MWCNTs catalysts for formic acid oxidation
title_fullStr Successive reduction for preparation of various Pd<inf>x</inf>Pt<inf>y</inf>-MWCNTs catalysts for formic acid oxidation
title_full_unstemmed Successive reduction for preparation of various Pd<inf>x</inf>Pt<inf>y</inf>-MWCNTs catalysts for formic acid oxidation
title_sort successive reduction for preparation of various pd<inf>x</inf>pt<inf>y</inf>-mwcnts catalysts for formic acid oxidation
publishDate 2017
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84961771397&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/42200
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