Monodisperse Pt3Co Nanoparticles as a Catalyst for the Oxygen Reduction Reaction: Size-Dependent Activity

被引:175
作者
Wang, Chao [1 ]
van der Vilet, Dennis [1 ]
Chang, Kee-Chul [1 ]
You, Hoydoo [1 ]
Strmcnik, Dusan [1 ]
Schlueter, John A. [1 ]
Markovic, Nenad M. [1 ]
Stamenkovic, Vojislav R. [1 ]
机构
[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
关键词
PARTICLE-SIZE; OPTICAL-PROPERTIES; ALLOY CATALYSTS; PLATINUM; NANOCRYSTALS; ELECTROCATALYSTS;
D O I
10.1021/jp908203p
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Monodisperse Pt3Co nanoparticles with size controlled from 3 to 9 nm have been synthesized through an organic solvothermal approach and applied as electrocatalysts for the oxygen reduction reaction. Electrochemical study shows that the Pt3CO rianoparticles are highly active for the oxygen reduction reaction and the activity is size-dependent. The optimal size for maximal mass activity was established to be around 4.5 nm by balancing the electrochemically active surface area and specific activity,
引用
收藏
页码:19365 / 19368
页数:4
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