Synthesis and electrocatalytic property of mono-dispersed Ag/Fe3O4 composite micro-sphere

被引：13
作者：
Pan, Lu [1 ]
Li, Li [1 ]
Xu, Mai [1 ]
Zhang, Zude [2 ]
机构：
[1] Huainan Normal Univ, Dept Chem & Chem Engn, Huainan 232001, Anhui, Peoples R China
[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2011年 / 176卷 / 14期
关键词：
Ag/Fe3O4; micro-sphere; Electrocatalysis; p-Nitrophenol; Hydrothermal synthesis; CATALYSTS; OXIDATION; FE3O4;
D O I：
10.1016/j.mseb.2011.05.046
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
One-step reaction was designed to synthesize mono-dispersed Ag/Fe3O4 micro-sphere with different Ag content via a facile and easily controlled hydrothermal method without use of any surfactant. The phases and composition analysis of the as-prepared samples were characterized by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. The morphology of the samples was observed by transmission electron microscopy (TEM) and field-emission scanning electron microscopy (FE-SEM). The results revealed that the Ag/Fe3O4 composite samples with different Ag content were micro-spheres with almost the identical size of 175 nm or so in diameter. The electrocatalytic activity of the resultant samples modified on a glassy carbon electrode (GCE) for p-nitrophenol reduction in a basic solution was investigated. The results indicated that all the samples exhibited enhanced electrocatalytic activity for p-nitrophenol reduction, and the sample with 3% Ag exhibited the highest electrocatalytic one. (C) 2011 Elsevier BM. All rights reserved.
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收藏
页码：1123 / 1127
页数：5
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