High electrochemical performance in asymmetric supercapacitors using MWCNT/nickel sulfide composite and graphene nanoplatelets as electrodes

被引：65

作者：

Singh, Arvinder ^{[1
]}

Roberts, Alexander J. ^{[2
]}

Slade, Robert C. T. ^{[2
]}

Chandra, Amreesh ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Phys, Kharagpur 721302, W Bengal, India

[2] Univ Surrey, Dept Chem, Guildford GU2 7XH, Surrey, England

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 39期

基金：

英国工程与自然科学研究理事会;

关键词：

OXIDE; NANOSTRUCTURES; CATHODE; STORAGE;

D O I：

10.1039/c4ta02870h

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：

The electrochemical performance of asymmetric supercapacitors (ASCs) using MWCNT/NiS and graphene nanoplatelets as the positive and negative electrode, respectively, are reported. Nickel sulfide nanoparticles can be decorated on multiwall carbon nanotubes using a hydrothermal synthesis process, with graphene nanoplatelets obtained via a chemical route. The fabricated ACSs were operated over a potential window of 1.4 V with a specific capacitance of 181 F g(-1) observed at 1 A g(-1). The ASCs were cycled at 2 A g(-1) showing 92% retention of initial capacitance after 1000 cycles.

引用

页码：16723 / 16730

页数：8

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