Methanol electro-oxidation using Rurh@Pt/C

A core-shell structure RuRh@Pt/C nanoparticles was prepared by using a two-step reduction method under ultrasonic promotion. The catalytic performance was tested in methanol electrooxidation. X-ray diffraction (XRD), scanning electron microscope (SEM) combined with cyclic voltammetry (CV) were used...

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Main Authors: Guang Ying Wang, Li Fang, Fei Fei Li, Surin Saipanya
Format: Book Series
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/53546
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-535462018-09-04T09:51:24Z Methanol electro-oxidation using Rurh@Pt/C Guang Ying Wang Li Fang Fei Fei Li Surin Saipanya Engineering A core-shell structure RuRh@Pt/C nanoparticles was prepared by using a two-step reduction method under ultrasonic promotion. The catalytic performance was tested in methanol electrooxidation. X-ray diffraction (XRD), scanning electron microscope (SEM) combined with cyclic voltammetry (CV) were used to characterize the obtained catalyst. The results showed that there was no alloy formed between the core RuRh and the shell Pt. The electrocatalytic activity of RuRh@Pt/C varied with the Ru/Rh ratio in the bimetallic core, among which the catalyst with the Ru/Rh ratio 1:2 and the Pt-shell thickness of 1.5 (Ru1Rh2@Pt1.5/C) showed the highest catalytic activity for methanol. With this catalyst, the current density of the oxidation peak for methanol electro-oxidation reached 2.3 times as that of Pt1.5/C while the corresponding peak potential shifted 60 mV negatively in comparing to that of Pt1.5/C. In addition, the catalyst with the core-shell structure of RuRh@Pt/C possessed much higher CO-tolerance for methanol electro-oxidation, indicating its promising application in low temperature fuel cell. © (2014) Trans Tech Publications, Switzerland. 2018-09-04T09:51:24Z 2018-09-04T09:51:24Z 2014-01-01 Book Series 16628985 10226680 2-s2.0-84904055566 10.4028/www.scientific.net/AMR.953-954.1297 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84904055566&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/53546
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
spellingShingle Engineering
Guang Ying Wang
Li Fang
Fei Fei Li
Surin Saipanya
Methanol electro-oxidation using Rurh@Pt/C
description A core-shell structure RuRh@Pt/C nanoparticles was prepared by using a two-step reduction method under ultrasonic promotion. The catalytic performance was tested in methanol electrooxidation. X-ray diffraction (XRD), scanning electron microscope (SEM) combined with cyclic voltammetry (CV) were used to characterize the obtained catalyst. The results showed that there was no alloy formed between the core RuRh and the shell Pt. The electrocatalytic activity of RuRh@Pt/C varied with the Ru/Rh ratio in the bimetallic core, among which the catalyst with the Ru/Rh ratio 1:2 and the Pt-shell thickness of 1.5 (Ru1Rh2@Pt1.5/C) showed the highest catalytic activity for methanol. With this catalyst, the current density of the oxidation peak for methanol electro-oxidation reached 2.3 times as that of Pt1.5/C while the corresponding peak potential shifted 60 mV negatively in comparing to that of Pt1.5/C. In addition, the catalyst with the core-shell structure of RuRh@Pt/C possessed much higher CO-tolerance for methanol electro-oxidation, indicating its promising application in low temperature fuel cell. © (2014) Trans Tech Publications, Switzerland.
format Book Series
author Guang Ying Wang
Li Fang
Fei Fei Li
Surin Saipanya
author_facet Guang Ying Wang
Li Fang
Fei Fei Li
Surin Saipanya
author_sort Guang Ying Wang
title Methanol electro-oxidation using Rurh@Pt/C
title_short Methanol electro-oxidation using Rurh@Pt/C
title_full Methanol electro-oxidation using Rurh@Pt/C
title_fullStr Methanol electro-oxidation using Rurh@Pt/C
title_full_unstemmed Methanol electro-oxidation using Rurh@Pt/C
title_sort methanol electro-oxidation using rurh@pt/c
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84904055566&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/53546
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