Evolution of physicochemical and electrocatalytic properties of NiCo2O4 (AB(2)O(4)) spinel oxide with the effect of Fe substitution at the A site leading to efficient anodic O-2 evolution in an alkaline environment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F14%3A43897598" target="_blank" >RIV/60461373:22310/14:43897598 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/journal/03603199/39/11" target="_blank" >http://www.sciencedirect.com/science/journal/03603199/39/11</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijhydene.2014.01.141" target="_blank" >10.1016/j.ijhydene.2014.01.141</a>

Result language
angličtina
Original language name
Evolution of physicochemical and electrocatalytic properties of NiCo2O4 (AB(2)O(4)) spinel oxide with the effect of Fe substitution at the A site leading to efficient anodic O-2 evolution in an alkaline environment
Original language description
Within the framework of this work, spinel-type ternary transition metal oxides of nickel, cobalt and iron with the composition FexNi1-xCo2O4 (0 {= x {= 1) were prepared and tested as promising electrocatalysts for the oxygen evolution reaction (OER) in alkaline water electrolysis. The hydroxide precipitation method was used for the synthesis. The morphology, structure and specific surface area of the prepared electrocatalysts were determined by means of scanning electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, the Brunauer Emmet Teller method and X-ray photo electron spectroscopy. The electrochemical properties were tested by thin-film technique on a rotating disk electrode and in a single-cell laboratory water electrolyzercoupled with electrochemical impedance spectroscopy. The OER studies indicate that substitution of Ni by Fe increases the electrocatalytic activity of the resulting material significantly. The highest activity was achieved for x = 0.1. W
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CG - Electrochemistry
OECD FORD branch
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Project
<a href="/en/project/FR-TI2%2F442" target="_blank" >FR-TI2/442: Research and development of advanced hydrogen technologies for power industry and transport</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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