Carbon Nanofibre Composites Decorated with Ru-Ag Nanophases for High-Efficiency Electrochemical Capacitors

被引：22

作者：

An, Geon-Hyoung ^{[1
]}

Ahn, Hyo-Jin ^{[1
]}

机构：

[1] Seoul Natl Univ Sci & Technol, Dept Mat Sci & Engn, Seoul 139743, South Korea

来源：

ECS SOLID STATE LETTERS | 2013年 / 2卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

ELECTRODES;

D O I：

10.1149/2.005305ssl

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Composite electrodes made of carbon nanofibres (CNFs) decorated with Ru-Ag nanophases were synthesized through a combination of an electrospinning method and an impregnation method for use in high-efficiency electrochemical capacitors. The scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) results indicate that the Ru-Ag nanophases are well decorated on the CNF electrode. The cyclic voltammetry (CV) results show that the CNF electrode decorated with Ru-Ag nanophases exhibits an excellent capacitance (approximate to 350.0 F/g at 100 mV/s), superb high-rate capacitance in the range 10-200 mV/s, and excellent capacity retention (approximate to 98.6%). (C) 2013 The Electrochemical Society. All rights reserved.

引用

页码：M33 / M36

页数：4