Ultrasmall and uniform Pt3Au clusters strongly suppress Ostwald ripening for efficient ethanol oxidation

被引：27

作者：

Zhang, Lian Ying ^{[1
]}

Gong, Yuyan ^{[1
]}

Liu, Hongdong ^{[2
]}

Yuan, Weiyong ^{[2
]}

Liu, Ze ^{[2
]}

机构：

[1] Qingdao Univ, Inst Mat Energy & Environm, Qingdao 266071, Peoples R China

[2] Southwest Univ, Inst Clean Energy & Adv Mat, Chongqing 400715, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2017年 / 84卷

基金：

中国博士后科学基金;

关键词：

Pt3Au; Clusters; Catalyst; Ethanol oxidation; Ostwald ripening; Fuel cells; FUEL-CELLS; NANOPARTICLE ELECTROCATALYSTS; ALKALINE MEDIA; FORMIC-ACID; GRAPHENE; NANOCRYSTALS; PLATINUM; STABILITY; OXIDE;

D O I：

10.1016/j.elecom.2017.09.008

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Clean and uniform Pt3Au clusters decorated on graphene (Pt3Au@PDDA-G) with an average size as small as 2.1 nm were successfully synthesized, offering higher catalytic activity and stability toward ethanol oxidation than that of Pt3Au@G and commercial Pt/C, respectively. The catalytic enhancement mechanism of Pt3Au@PDDA-G was proposed and discussed, and this work demonstrated that the uniformly distributed Pt3Au clusters could strongly suppress Ostwald ripening to retain their original crystals size and morphology for highly catalytic properties.

引用

页码：1 / 5

页数：5

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