Integration of CuO nanosheets to Zn-Ni-Co oxide nanowire arrays for energy storage applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

30 Scopus Citations
View graph of relations

Author(s)

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number127570
Journal / PublicationChemical Engineering Journal
Volume413
Online published30 Oct 2020
Publication statusPublished - 1 Jun 2021

Abstract

The structure of materials in supercapacitors plays great importance in facilitating fast ion transport. Herein, we incorporated two-dimensional Cu-oxide nanosheets (2D NSs) in one-dimensional Zn-Ni-Co-oxide nanowire arrays (1D NWAs) on three-dimensional (3D) substrate. The integrated CuO/Zn-Ni-Co oxide electrode material exhibited a high specific capacity of 1261C g−1 at a current density of 1 A g−1 and retained 92.2% of its capacity after 20,000 cycles. Density functional theory-based calculations were employed to validate the structural and electronic properties of the prepared materials. Moreover, the hybrid supercapacitor (HSC) device was engineered by using the as-prepared CuO/Zn-Ni-Co oxide electrode material as a positive and integrated functionalized multi wall carbon nanotubes (MWCNTs-COOH), activated carbon (AC), and reduced graphene oxide (rGO) as negative electrode. We highlighted the variance in using two different equations for energy density calculations. The HSC device delivered a high energy density of 74 Wh kg−1 at a power density of 1.02 kW kg−1. We also demonstrated illumination of multiple color LEDs for >600 s. The eye-catching results demonstrated that the integrated and structured 2D NSs/1D NWAs based CuO/Zn-Ni-Co oxide from materials can be used for practical applications.

Research Area(s)

  • Energy density, Metal substitution, Mixed metal oxide, Nanosheet, Nanowire array

Citation Format(s)

Integration of CuO nanosheets to Zn-Ni-Co oxide nanowire arrays for energy storage applications. / Hussain, Iftikhar; Hussain, Tanveer; Yang, Shaoran; Chen, Yatu; Zhou, Jun; Ma, Xiaoxia; Abbas, Nadir; Lamiel, Charmaine; Zhang, Kaili.

In: Chemical Engineering Journal, Vol. 413, 127570, 01.06.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review