Article ID Journal Published Year Pages File Type
1529854 Materials Science and Engineering: B 2011 5 Pages PDF
Abstract

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.

► In the present work, a facile and easily controlled procedure with one step was designed to synthesize mono-diverse Ag/Fe3O4 micro-spheres. ► The electrocatalytic activities of the Ag/Fe3O4 nanomaterials decorated on a glassy carbon electrode for p-nitrophenol reduction in a basic solution were examined. ► All the establishments are novel and little reports about these can be obtained.

Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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