Nickel-cobalt hydroxide nanosheets arrays on Ni foam for pseudocapacitor applications

被引：156

作者：

Pu, Jun ^{[1
]}

Tong, Yao ^{[1
]}

Wang, Shubo ^{[1
]}

Sheng, Enhong ^{[1
]}

Wang, Zhenghua ^{[1
]}

机构：

[1] Anhui Normal Univ, Coll Chem & Mat Sci, Minist Educ, Key Lab Funct Mol Solids, Wuhu 241000, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2014年 / 250卷

基金：

中国国家自然科学基金;

关键词：

Layered double hydroxides; Supercapacitors; Binder-free; Ni foam; PERFORMANCE SUPERCAPACITOR ELECTRODES; SOLID-STATE SUPERCAPACITORS; LAYERED DOUBLE HYDROXIDES; DOPED POROUS CARBON; MANGANESE-DIOXIDE; ELECTROCHEMICAL CAPACITORS; REDOX-SUPERCAPACITORS; FACILE SYNTHESIS; NANOROD ARRAYS; NANOPARTICLES;

D O I：

10.1016/j.jpowsour.2013.10.108

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Vertically aligned nickel-cobalt layered double hydroxides (LDHs) nanosheets as electroactive materials are directly deposited on Ni foam substrate using a facile hydrothermal method. The Ni-Co LDHs nanosheets are interlaced on the substrate with an average thickness of about 20 nm. Galvanostatic charge-discharge measurement reveals that the LDHs-Ni foam binder-free electrode has an impressive specific capacitance as high as 1734 F g(-1) at 6 A g(-1) in 3 M KOH solution. It also shows a remarkable specific capacitance of up to 1146 F g(-1) at a high current density of 30 A g(-1). (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：250 / 256

页数：7

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