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Facile Synthesis and Electrochemical Properties of Co 3 S 4 ‐Nitrogen‐Doped Graphene Nanocomposites for Supercapacitor Applications
Author(s) -
Grace Andrews Nirmala,
Ramachandran Rajendran,
Vinoba Mari,
Choi Song Yi,
Chu Dae Hyun,
Yoon Yeoil,
Nam Sung Chan,
Jeong Soon Kwan
Publication year - 2014
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201300262
Subject(s) - supercapacitor , nanocomposite , graphene , materials science , cyclic voltammetry , capacitance , electrochemistry , nanotechnology , chemical engineering , doping , capacitive sensing , composite number , nitrogen , analytical chemistry (journal) , electrode , optoelectronics , composite material , chemistry , organic chemistry , computer science , engineering , operating system
Nanocomposites of Co 3 S 4 grown on nitrogen‐doped graphene (NG) (Co 3 S 4 ‐NG) have been prepared at various concentrations of NG. The supercapacitive behaviors of the developed nanocomposites were assessed with cyclic voltammetry and galvanostatic charge discharge techniques. The nanocomposites exhibit excellent capacitive behavior with a high specific capacitance of 2427 F/g at 2 mV/s in Co 3 S 4 ‐NG‐7 composite (7 indicates the percentage weight ratio of NG). The superior electrochemical performances could be due to synergistic effects between Co 3 S 4 and NG, high charge mobility and good flexibility of graphene structures. These results indicate that the developed hybrid materials are promising candidates for high performance energy applications.