eprintid: 17440
rev_number: 8
eprint_status: archive
userid: 564
dir: disk0/00/01/74/40
datestamp: 2023-10-26 11:51:53
lastmod: 2023-10-26 11:51:53
status_changed: 2023-10-26 11:51:53
type: article
metadata_visibility: show
creators_name: Agudosi, Elochukwu Stephen
creators_name: Abdullah, Ezzat Chan
creators_name: Numan, Arshid
creators_name: Khalid, Mohamad Sukeri
creators_name: Mubarak, Nabisab Mujawar
creators_name: Benages-Vilau, Raú
creators_name: Gómez-Romero, Pedro
creators_name: Aid, Siti Rahmah
creators_name: Omar, Nurizan
title: Optimisation of NiO electrodeposition on 3D graphene electrode for
electrochemical energy storage using response surface methodology
ispublished: pub
subjects: TP
divisions: sch_eng
full_text_status: public
keywords: Optimization
ANOVA
Electrodeposition
NiO
Binder-free electrode
Energy storage
abstract: In this study, NiO was electrodeposited on a 3D graphene electrode to produce a nanocomposite with enhanced electrochemical
properties. The electrodeposition process parameters such as electrolyte concentration, deposition time,
and deposition potential were statistically optimised using response surface methodology. The statistical analysis
showed that the optimal electrodeposition conditions to be 0.3 M, 10 min, and -1.2 V for electrolyte concentration, deposition
time, and deposition potential, respectively. Furthermore, the predicted model and experimental results for
the specific capacity of G-NiO were determined to be 240.91 C/g and 240.58 C/g at 3 mV/s. The results show that
the electrochemical deposition technique can be employed as a fast and reliable synthesis route to develop
graphene-based metal oxide nanocomposites. The structural and morphological properties were determined by XRD
and FESEM studies. The electrochemical measurements revealed the excellent electrochemical performance of 3D
graphene NiO composite (G-NiO) for energy storage applications.
date: 2021
date_type: published
publication: Journal of Electroanalytical Chemistry
publisher: Elsevier
id_number: http://dx.doi.org/10.1016/j.jelechem.2021.114992
refereed: TRUE
citation:   Agudosi, Elochukwu Stephen and Abdullah, Ezzat Chan and Numan, Arshid and Khalid, Mohamad Sukeri and Mubarak, Nabisab Mujawar and Benages-Vilau, Raú and Gómez-Romero, Pedro and Aid, Siti Rahmah and Omar, Nurizan  (2021) Optimisation of NiO electrodeposition on 3D graphene electrode for electrochemical energy storage using response surface methodology.  Journal of Electroanalytical Chemistry.       
document_url: http://eprints.covenantuniversity.edu.ng/17440/1/1-s2.0-S1572665721000187-main.pdf