BROWSE

Related Researcher

Author's Photo

Lee, Hyun-Wook
Energy Storage and Electron Microscopy Laboratory
Research Interests
  • Energy storage, secondary batteries, transmission electron microscopy, real time analysis

ITEM VIEW & DOWNLOAD

Synthesis of porous CuCo2O4 nanorods/reduced graphene oxide composites via a facile microwave hydrothermal method for high-performance hybrid supercapacitor applications

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Synthesis of porous CuCo2O4 nanorods/reduced graphene oxide composites via a facile microwave hydrothermal method for high-performance hybrid supercapacitor applications
Author
Jayasubramaniyan, S.Balasundari, S.Yeom, Su JeongNaresh, N.Rani, T.Rapaka, E. VijayakrishnaSatyanarayana, N.Lee, Hyun-WookMuralidharan, P.
Issue Date
2021-09
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ELECTROCHIMICA ACTA, v.390, pp.138865
Abstract
Supercapacitors are considered to be promising energy storage devices because of their long cycle stability, fast charge-discharge, and high power density. However, energy storage performance predominantly depends on the morphology and nanostructure of electrode materials. The material with porous nanostructures has attracted great interest because of more active sites for the faradaic reactions which facilitate the utilization of the full capacity of the active materials. Herein, porous CuCo2O4 (CCO) nanorods dispersed on reduced graphene oxide (rGO) nanosheets (CCO/rGO) has been prepared in a short duration via a facile single-step microwave hydrothermal method. The porous feature of the CCO nanorod provides more reactive sites for faradaic reaction and facilitates the electrolyte penetration into the inner region of the electrode. Also, the incorporation of rGO provides a more conductive network that facilitates the collection and transportation of electrons during cycling. Electrochemical performance of the CCO/rGO composite exhibits a specific capacity of 677 C g(-1) at a current density of 1 A g(-1) and retained excellent cycling stability of 97.4% after 2000 cycles at a high current density of 10 A g(-1). This work demonstrated a simple, effective, and cost-cut method to prepare porous CuCo2O4 on rGO electrodes in a short time duration with the enhanced electrochemical performance for hybrid supercapacitor applications. (C) 2021 Elsevier Ltd. All rights reserved.
URI
https://scholarworks.unist.ac.kr/handle/201301/53776
URL
https://www.sciencedirect.com/science/article/pii/S0013468621011555?via%3Dihub
DOI
10.1016/j.electacta.2021.138865
ISSN
0013-4686
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU