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Effect of electronic coupling on the electrocatalytic performance of platinum metal
Feng, Yan1,2; Wang, Caixia1; Ye, Feng1; Liu, Hui1,3; Yang, Jun1,3
2016
发表期刊RSC ADVANCES
ISSN2046-2069
卷号6期号:84页码:80910-80915
摘要

Engineering the electronic coupling in platinum-based heterogeneous nanomaterials is an effective way to enhance their activity in electrocatalysis. Herein, we study the relationship between the electronic coupling and electrocatalytic activity of Pt metal through a core-shell construction. We prepare core-shell Ag-Pt, Au-Pt, and hollow Pt nanoparticles with comparable sizes and morphologies, and tailor the electron density around the Pt atoms via the differences in electronegativities between the core and shell components. Specifically, core-shell Ag-Pt nanoparticles are active for the methanol oxidation reaction due to the presence of electron donation from Ag to Pt, while core-shell Au-Pt nanoparticles exhibit superior activity for the oxygen reduction reaction due to the electron withdrawing effect from Pt by Au. The bimetallic core-shell particles therefore have the feasibility of tuning a Pt surface for two very different structure sensitive catalytic reactions, and further enhancement in electrocatalysis might be achieved by optimizing both the core size and shell thickness in the core-shell materials.

文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra16626a
收录类别SCI
语种英语
关键词[WOS]NOBLE-METALS ; NANOPARTICLES ; OXYGEN ; HOLLOW ; NANOMATERIALS ; CONSTRUCTION ; PROPERTY ; SILVER ; RU
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Natural Science Foundation of China(21376247 ; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences(COM2015A001) ; 21476246 ; 21406231 ; 21506225 ; 21573240)
WOS记录号WOS:000383903500063
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21476
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Ctr Mesosci, Beijing 100190, Peoples R China
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GB/T 7714
Feng, Yan,Wang, Caixia,Ye, Feng,et al. Effect of electronic coupling on the electrocatalytic performance of platinum metal[J]. RSC ADVANCES,2016,6(84):80910-80915.
APA Feng, Yan,Wang, Caixia,Ye, Feng,Liu, Hui,&Yang, Jun.(2016).Effect of electronic coupling on the electrocatalytic performance of platinum metal.RSC ADVANCES,6(84),80910-80915.
MLA Feng, Yan,et al."Effect of electronic coupling on the electrocatalytic performance of platinum metal".RSC ADVANCES 6.84(2016):80910-80915.
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