DICP OpenIR
Fabrication of a highly dispersed Pd-core@Pt-shell electrocatalyst for the oxygen reduction reaction
Cao, Longsheng1,2; Jiang, Shangfeng1,2; Zhang, Geng3; Tang, Xuejun1,2; Qin, Xiaoping1; Shao, Zhigang1; Yi, Baolian1
KeywordPd-core@pt-shell Dissociated Hydrogen Oxygen Reduction Electrocatalysis Core Shell
Source PublicationCHINESE JOURNAL OF CATALYSIS
2017-07-01
DOI10.1016/S1872-2067(17)62840-7
Volume38Issue:7Pages:1196-1206
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordHIGH-PERFORMANCE ELECTROCATALYSTS ; FUEL-CELLS ; PLATINUM NANOPARTICLES ; TRANSITION-METALS ; SURFACE ; CATALYSTS ; CATHODE ; ALLOYS ; XPS ; ELECTROREDUCTION
AbstractCore-shell nanostructures have been widely investigated to improve the electrocatalytic performance of platinum. However, organic precursors, surfactants or high temperature are usually necessary during the preparation procedure. Unfortunately, these requirements limit the application of these methods on a large scale. Herein, a Pd-core@Pt-shell nanostructure was fabricated through the reduction of K2PtCl4 by dissociated hydrogen at room temperature without the assistance of either a surfactant or a high-boiling point solvent. The shell thickness of this nanostructure was successfully controlled by varying the amount of K2PtCl4; core-shell nanoparticles with a shell thickness of 0.45, 0.75 and 0.90 nm were obtained, as determined by TEM. The remarkable crystallinity and epitaxial growth of the Pd-core@Pt-shell nanostructure were revealed by HRTEM and EDS. According to ICP and XPS, surface segregation of Pt was established. The impressive ORR performance was attributed to the weak adsorption strength of the OHads species, which resulted from the electron transfer impact between the Pd-core@Pt-shell. The facile and clean preparation method can be used to prepare other core-shell nanostructures under a mild atmosphere. (C) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000405979100011
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152025
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Grp, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Huazhong Agr Univ, Coll Sci, Dept Chem, Wuhan 430070, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Cao, Longsheng,Jiang, Shangfeng,Zhang, Geng,et al. Fabrication of a highly dispersed Pd-core@Pt-shell electrocatalyst for the oxygen reduction reaction[J]. CHINESE JOURNAL OF CATALYSIS,2017,38(7):1196-1206.
APA Cao, Longsheng.,Jiang, Shangfeng.,Zhang, Geng.,Tang, Xuejun.,Qin, Xiaoping.,...&Yi, Baolian.(2017).Fabrication of a highly dispersed Pd-core@Pt-shell electrocatalyst for the oxygen reduction reaction.CHINESE JOURNAL OF CATALYSIS,38(7),1196-1206.
MLA Cao, Longsheng,et al."Fabrication of a highly dispersed Pd-core@Pt-shell electrocatalyst for the oxygen reduction reaction".CHINESE JOURNAL OF CATALYSIS 38.7(2017):1196-1206.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cao, Longsheng]'s Articles
[Jiang, Shangfeng]'s Articles
[Zhang, Geng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cao, Longsheng]'s Articles
[Jiang, Shangfeng]'s Articles
[Zhang, Geng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cao, Longsheng]'s Articles
[Jiang, Shangfeng]'s Articles
[Zhang, Geng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.