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题目:

One-step synthesis of AuPd alloy nanoparticles on graphene as a stable catalyst for ethanol electro-oxidation

 

 

作者:

Changhai Liu a,b, Xinlei Cai b, Jianshe Wang c, Jie Liu b, Adam Riese d, Zhidong Chen a, Xueliang Sun d,**, Sui-Dong Wang b,*

 

 

单位:

a School of Materials Science & Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, PR China

b Soochow University-Western University Joint Centre for Synchrotron Radiation Research, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, PR China

c School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450000, PR China

d Department of Mechanical and Materials Engineering, Western University, ON N6A 5B9, Canada

 

 

摘要:

Room-temperature-ionic-liquid-assisted sputtering with an alloy target is utilized to synthesize the graphene-supported AuPd alloy nanoparticles, whose Au-to-Pd ratio can be well controlled. The preparation process is one-step, free of additives and stabilizers. For direct electro-oxidation of ethanol in alkaline media, the supported AuPd alloy nanoparticles show much higher catalytic activity compared with a commercial Pd/C catalyst and the monometallic counterpart. The optimal Au-to-Pd ratio is 1:3, and the nanocatalyst of AuPd (1:3) possesses high stability and durability. After 500 cyclic voltammetry test cycles, the anodic peak current density for ethanol electro-oxidation still remains about 91% of the initial one. Furthermore, by quantitatively analyzing the relative reactivity retention, the alloy nanoparticle catalysts with graphene as the support show much higher

anti-poisoning performance than the corresponding monometallic catalysts with active C as the support.

 

 

影响因子:

3.205

 

 

分区情况:

2

 

 

链接:

http://www.sciencedirect.com/science/article/pii/S0360319916307303

 

(责任编辑:金晓瑜 联系方式:xyjin@suda.edu.cn


 

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