Oxygen reduction on Au nanoparticle deposited boron-doped diamond films

被引：106

作者：

Zhang, YR ^{[1
]}

Asahina, S ^{[1
]}

Yoshihara, S ^{[1
]}

Shirakashi, T ^{[1
]}

机构：

[1] Utsunomiya Univ, Grad Sch Engn, Dept Energy & Environm Sci, Utsunomiya, Tochigi 3218585, Japan

来源：

ELECTROCHIMICA ACTA | 2003年 / 48卷 / 06期

关键词：

nanoparticle gold; boron-doped diamond; oxygen reduction; AC impedance; rotating disk electrode;

D O I：

10.1016/S0013-4686(02)00743-0

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanoparticle Au was deposited on as grown boron-doped diamond (BDD). The coverage and the morphology of the deposited Au particles were investigated by means of the linear sweep voltammeter and scanning electron microscopy (SEM). From SEM, the gold electrodeposited randomly as small spherical particles with an average diameter of 60nm. The applications of the as grown BDD film deposited,by Au for electrocatalytic reduction of the oxygen in acidic solution were investigated. The catalytic efficiency of the Au deposited as grown BDD with the coverage of 0.06 is near 20 times larger than that of polycrystalline gold. The mechanism of the highly electrocatalytic active was investigated by ac impedance and hydrodynamic voltammetric methods. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：741 / 747

页数：7

共 27 条

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