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Title: Electrocatalytic activity of CoFe2O4 thin films prepared by AACVD towards the oxygen evolution reaction in alkaline media
Authors: Sagu, Jagdeep S.
Mehta, Diana
Wijayantha, K.G.U.
Keywords: Thin film
Electrocatalyst
OER
AACVD
Oxide
Alkalin
Issue Date: 2018
Publisher: © The Authors. Published by Elsevier
Citation: SAGU, J.S., MEHTA, D. and WIJAYANTHA, K.G.U., 2018. Electrocatalytic activity of CoFe2O4 thin films prepared by AACVD towards the oxygen evolution reaction in alkaline media. Electrochemistry Communications, 87, pp. 1-4.
Abstract: © 2017 The Authors The electrocatalytic behaviour of CoFe 2 O 4 thin films, prepared by aerosol-assisted chemical vapour deposition, towards the oxygen evolution reaction in an alkaline medium is reported. X-ray diffraction and SEM data show that the CoFe 2 O 4 thin films are phase pure and consist of dendrites 0.5–1 μm in diameter rising from the surface with heights ranging from 1 to 3 μm. The CoFe 2 O 4 thin films exhibited an overpotential of 490 mV at a current density of 10 mA cm − 2 , and a Tafel slope of 54.2 mV dec − 1 . Taking into account the electrochemically active surface area, the intrinsic activity of CoFe 2 O 4 was found to be 1.75 mA cm − 2 real at an overpotential of 490 mV. The CoFe 2 O 4 thin films were highly stable and were capable of maintaining catalytic activity for at least 12 h.
Description: This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/
Sponsor: JS and KGUW acknowledge the support from UK EPSRC Joint University Industry Consortium for Energy (Materials) and Devices Hub (EP/R023662/1.
Version: Published
DOI: 10.1016/j.elecom.2017.12.017
URI: https://dspace.lboro.ac.uk/2134/27959
Publisher Link: https://doi.org/10.1016/j.elecom.2017.12.017
ISSN: 1388-2481
Appears in Collections:Published Articles (Chemistry)

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