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Uniformly dispersed platinum-cobalt alloy nanoparticles with stable compositions on carbon substrates for methanol oxidation reaction
Liu, Hui1,2; Li, Chengyin1; Chen, Dong1; Cui, Penglei1; Ye, Feng1; Yang, Jun1,2,3
2017-09-12
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume7
Abstract

Alloying platinum (Pt) with suitable transition metals is effective way to enhance their catalytic performance for methanol oxidation reaction, and reduce their cost at mean time. Herein, we report our investigation on the synthesis of bimetallic platinum-cobalt (PtCo) alloy nanoparticles, their activation, as well as the catalytic evaluation for methanol oxidation reaction. The strategy starts with the synthesis of PtCo alloy nanoparticles in an organic medium, followed by loading on carbon substrates. We then remove the capping agent by refluxing the carbon-supported PtCo particles in acetic acid before electrochemical measurements. We emphasize the change in composition of the alloys during refluxing process, and the initial PtCo alloys with Pt/Co ratio of 1/2 turns into stable alloys with Pt/Co ratio of 3/1. The final Pt3Co particles have uniform distribution on carbon substrates, and exhibit activity with 2.4 and 1.5 times of that for commercial Pt/C and PtRu/C for methanol oxidation reaction.

SubtypeArticle
WOS HeadingsScience & Technology
DOI10.1038/s41598-017-10223-2
Indexed BySCI
Language英语
WOS KeywordShape-controlled Synthesis ; Formic-acid Oxidation ; Fuel-cells ; Electrocatalytic Performance ; Oxygen Reduction ; Metal Nanoparticles ; Ptco Nanowires ; Anode Catalyst ; Ptru Alloy ; Co
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Funding OrganizationNational Natural Science Foundation of China(21376247 ; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences(COM2015A001) ; 21476246 ; 21506225 ; 21506234 ; 21573240)
WOS IDWOS:000410297900135
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23198
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Ctr Mesosci, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Hui,Li, Chengyin,Chen, Dong,et al. Uniformly dispersed platinum-cobalt alloy nanoparticles with stable compositions on carbon substrates for methanol oxidation reaction[J]. SCIENTIFIC REPORTS,2017,7.
APA Liu, Hui,Li, Chengyin,Chen, Dong,Cui, Penglei,Ye, Feng,&Yang, Jun.(2017).Uniformly dispersed platinum-cobalt alloy nanoparticles with stable compositions on carbon substrates for methanol oxidation reaction.SCIENTIFIC REPORTS,7.
MLA Liu, Hui,et al."Uniformly dispersed platinum-cobalt alloy nanoparticles with stable compositions on carbon substrates for methanol oxidation reaction".SCIENTIFIC REPORTS 7(2017).
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