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题名: Electrodeposition of dendritic Pd nanoarchitectures on n-GaN(0001): nucleation and electrocatalysis for direct formic acid fuel cells
作者: Zhao, Y (赵宇) ; Qin, SJ (Qin, Shuang-Jiao) ; Li, Y (李岩) ; Deng, FX (邓凤祥) ; Liu, YQ (刘永强) ; Pan, GB (潘革波)
通讯作者: Pan, GB (潘革波)
关键词: palladium ; gallium nitride ; electrodeposition ; nucleation ; electrocatalysis
刊名: ELECTROCHIMICA ACTA
发表日期: 2014
卷: 145, 期:0, 页:148-153
收录类别: SCI
英文摘要:
Dendritic Pd nanoarchitectures were electrochemically deposited on single-
 
crystal n-GaN(0001) by cyclic voltammetry and employed as anode electrocatalyst for 
 
direct formic acid fuel cells. The Pd deposition on n-GaN(0001) was found to 
 
commence at 0.2 V vs. Ag/AgCl without underpotential deposition process and follow 
 
the typical instantaneous nucleation in large overpotential region. High-resolution 
 
transmission electron microscope images revealed that numerous small branches were 
 
formed around the trunk of dendritic structures and grew along the <111> directions. 
 
The as-obtained dendritic Pd nanoarchitectures showed good catalytic performance for 
 
formic acid and the oxidation peak potential appeared at 0.45 V vs. Ag/AgCl. The 
 
maximum current density and mass activity were 19.7 mA cm(-1) and 904 mA mg(-1), 
 
respectively, for the dendritic Pd nanocrystals obtained by cycling the potentials 
 
from -0.25 to 1.0 V for 5 times. (C) 2014 Elsevier Ltd. All rights reserved. 
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/1778
Appears in Collections:学科交叉综合研究部_潘革波团队_期刊论文

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Recommended Citation:
Zhao, Y ,Qin, SJ ,Li, Y ,et al. Electrodeposition of dendritic Pd nanoarchitectures on n-GaN(0001): nucleation and electrocatalysis for direct formic acid fuel cells[J]. ELECTROCHIMICA ACTA,2014,145(0):148-153.
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