Highly active Aucore@Ptcluster catalyst for formic acid electrooxidation

被引：15
|
作者：
Liao, Mengyin [1 ]
Li, Weiping [2 ]
Xi, Xiping [1 ]
Luo, Chenglong [1 ]
Gui, Shuanglin [1 ]
Jiang, Cheng [1 ]
Mai, Zhaohuan [1 ]
Chen, Bing H. [3 ]
机构：
[1] Jiangxi Acad Sci, Inst Energy Convers, Nanchang 330096, Jiangxi, Peoples R China
[2] East China Univ Technol, Jiangxi Prov Key Lab Polymer Micro Nano Mfg Devic, Nanchang 330013, Jiangxi, Peoples R China
[3] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem & Biochem Engn, Natl Engn Lab Green Chem Prod Alcohols Ethers Est, Xiamen 361005, Peoples R China
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2017年 / 791卷
关键词：
Fuel cells; AuPt; Formic acid oxidation; Electrocatalyst; METHANOL FUEL-CELLS; ELECTROCATALYTIC PROPERTIES; ELECTROCHEMICAL OXIDATION; NANOPARTICLES; PLATINUM; ALLOY; OSCILLATIONS; ELECTRODE; PATHWAYS; NANORODS;
D O I：
10.1016/j.jelechem.2017.03.024
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This work attempts to enhance platinum utilization in a Pt-based electrocatalyst by the tuned covering of gold nanoparticles with small Pt entities. Reductive deposition of platinum (donated as Pt) on gold (donated as Au) nanoparticles with different atomic Pt:Au ratios was used to prepare a series of samples named Au-core@Pt(cluster)particles. UV-vis spectrum, TEM and XRD were used to characterize the core-cluster samples. The electrochemical tests (cyclic voltammerty (CV)) showed that the core-cluster structure could significantly improve the catalytic activity of Au-Pt towards electrooxidation of formic acid, in comparison to commercial Pt/C electrocatalyst. The improvement of activity is ascribed to the interaction between Au core and Pt cluster. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：124 / 130
页数：7
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