Ultrasonic synthesis and electrochemical characterization of V2O5/mesoporous carbon composites

被引：37

作者：

Yu, Li

Zhao, Chunxia

Long, Xi

Chen, Wen ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2009年 / 126卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

V2O5/CMK-3; composites; Ultrasonic synthesis; Pseudo-capacitance; MESOPOROUS SILICA; NANOPARTICLES; PERFORMANCE; CATALYSTS; MODEL; RAMAN; MNO2;

D O I：

10.1016/j.micromeso.2009.05.020

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

V2O5/ordered mesoporous carbon (CMK-3) composites were prepared by an ultrasonic method. The microstructures of such composites were characterized by X-ray diffraction (XRD), nitrogen adsorption and desorption, X-ray photoelectron spectra (XPS) and transmission electron microscopy (TEM). The results showed that the ultrasonic synthesis method was flexible and efficient to highly disperse V2O5 nanoparticles in CMK-3. The electrochemical property of the V2O5/CMK-3 composites has also been investigated. The specific capacitance of the new composites was significantly improved (124 F/g) compared to that of CMK-3 (77 Fig). The high capacitance was mainly derived from the high specific surface area of CMK-3 and the pseudo-capacitance of V2O5. Therefore, the V2O5/CMK-3 composites can be a potential electrode material applied in the capacitors. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：58 / 64

页数：7

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