University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Needle grass array of nanostructured nickel cobalt sulfide electrode for clean energy generation

Zequine, Camila, Bhoyate, Sanket, Siam, Khamis, Kahol, Pawan K., Kostoglou, Nikolaos, Mitterer, Christian, Hinder, Steven, Baker, Mark, Constantinides, Georgios, Rebholz, Claus , Gupta, Gautam, Li, Xianglin and Gupta, Ram K. (2018) Needle grass array of nanostructured nickel cobalt sulfide electrode for clean energy generation Surface and Coatings Technology, 354. pp. 306-312.

[img] Text
__homes.surrey.ac.uk_home_.System_Desktop_NiCoS-Manuscript-Revised_2.docx - Accepted version Manuscript

Download (2MB)
[img] Text
__homes.surrey.ac.uk_home_.System_Desktop_NiCoS-ESI-Revised_2.docx - Accepted version Manuscript

Download (1MB)

Abstract

Significant efforts have been focused on the search of earth-abundant elements to solve growing energy issues and to provide bifunctional behavior for both hydrogen and oxygen evolution reaction. Mixed transition metals could provide promising synergistic electrochemical properties and serve as bi-catalyst for overall water splitting process. In this study, a needle grass array of nanostructured nickel cobalt sulfide (NiCo2S4) was synthesized using a hydrothermal process. The synthesized NiCo2S4 electrodes showed promising electrocatalytic activity with a low overpotential of 148 mV and 293 mV for hydrogen and oxygen evolution reactions, respectively. The electrolyzer cell consisting of two NiCo2S4 electrodes displayed excellent performance with high electrochemical stability and low overall cell potential of 1.61 V to achieve a current density of 10 mA/cm2. Our study suggests that mixed transition metal chalcogenides such as NiCo2S4 could be used as efficient and stable electrocatalyst for overall water splitting process.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
NameEmailORCID
Zequine, Camila
Bhoyate, Sanket
Siam, Khamis
Kahol, Pawan K.
Kostoglou, Nikolaos
Mitterer, Christian
Hinder, StevenS.Hinder@surrey.ac.uk
Baker, MarkM.Baker@surrey.ac.uk
Constantinides, Georgios
Rebholz, Claus
Gupta, Gautam
Li, Xianglin
Gupta, Ram K.
Date : 18 September 2018
DOI : 10.1016/j.surfcoat.2018.09.045
Copyright Disclaimer : © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : NiCo-OH; NiCo2S4; OER; HER; Water electrolysis
Depositing User : Melanie Hughes
Date Deposited : 25 Sep 2018 17:15
Last Modified : 18 Sep 2019 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/849439

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800