Structural evolution of palladium nanoparticles and their electrocatalytic activity toward ethanol oxidation in alkaline solution

被引：10
|
作者：
Wen, Changna [1 ]
Li, Zhaopeng [1 ]
Cao, Caiyun [1 ]
Wang, Yiqian [2 ]
Guo, Peizhi [1 ]
Zhao, X. S. [1 ]
机构：
[1] Qingdao Univ, Sch Mat Sci & Engn, Inst Mat Energy & Environm, State Key Lab Breeding Based New Fiber Mat & Mode, Qingdao 266071, Peoples R China
[2] Qingdao Univ, Sch Phys, Qingdao 266071, Peoples R China
来源：
RSC ADVANCES | 2016年 / 6卷 / 94期
基金：
中国国家自然科学基金;
关键词：
FORMIC-ACID ELECTROOXIDATION; SHAPE-CONTROLLED SYNTHESIS; ALCOHOL FUEL-CELLS; POLY(VINYL PYRROLIDONE); CATALYTIC BEHAVIOR; AQUEOUS-SOLUTIONS; SILVER NANOWIRES; FACILE SYNTHESIS; POLYOL PROCESS; PD;
D O I：
10.1039/c6ra18146e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A series of palladium nanoparticles with sizes ranging from 3 to 10 nm were synthesized with ethylene glycol as the solvent and reducing agent. Based on X-ray diffraction, transmission electron microscopy and high resolution transmission electron microscopy characterization, the as-prepared palladium nanoparticles were well-crystalline and uniformly dispersed. Electrochemical measurements showed that the smallest (similar to 3 nm) palladium nanoparticles exhibited the highest current density and the best cycling stability and durability among the four kinds of palladium nanoparticles for the electrocatalytic oxidation of ethanol. In addition, small palladium nanoparticles were spherical while large nanoparticles with a certain decline in electrocatalytic activity showed distinct shape. The formation and shape evolution of the palladium nanoparticles as well as their structure-property relationship have been studied and analyzed based on the experimental data.
引用
收藏
页码：91991 / 91998
页数：8
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