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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

—

Projekt

<a href="/cs/project/FR-TI2%2F442" target="_blank" >FR-TI2/442: Výzkum a vývoj pokročilých vodíkových technologií pro energetiku a dopravu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Hydrogen Energy

ISSN

0360-3199

e-ISSN

—

Svazek periodika

39

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

5713-5722

Kód UT WoS článku

000334977900027

EID výsledku v databázi Scopus

—