Vliv velikosti částic na vylučování kyslíku na nanokrystalickém RuO2 a Ru0.8Co0.2O2-x

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F06%3A00041597" target="_blank" >RIV/61388955:_____/06:00041597 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Particle size dependence of oxygen evolution reaction on nanocrystalline RuO2 and Ru0.8Co0.2O2-x

Popis výsledku v původním jazyce

Nanocrystalline RuO2 and Ru0.8Co0.2O2-x were prepared by a sol-gel synthesis. Both electrode materials were phase pure with tetragonal structure of rutile type. Characteristic particle size estimated from XRD pattern ranged between 15 and 45 nm in the case of RuO2 and 20 and 60 nm in the case of Ru0.8Co0.2O2-x. Both electrode materials show acceptable stability in acid media and are active electrocatalysts for oxygen evolution. Despite similar structure and chemical composition the oxygen evolution on RuO2 is controlled by charge transfer processes; the oxygen evolution on Ru0.8Co0.2O2-x is controlled by chemical steps of the electrode process. The oxygen evolution is in both cases affected by the particle size. Increasing particle size suppresses oxygen evolution on RuO2, but enhances it on Ru0.8Co0.2O2-x anodes. The opposite trends in electrochemical behavior of RuO2 and Ru0.8Co0.2O2-x are attributed to a specific effect of cobalt, which substitutes the Ru in the structure ...

Název v anglickém jazyce

Particle size dependence of oxygen evolution reaction on nanocrystalline RuO2 and Ru0.8Co0.2O2-x

Popis výsledku anglicky

Nanocrystalline RuO2 and Ru0.8Co0.2O2-x were prepared by a sol-gel synthesis. Both electrode materials were phase pure with tetragonal structure of rutile type. Characteristic particle size estimated from XRD pattern ranged between 15 and 45 nm in the case of RuO2 and 20 and 60 nm in the case of Ru0.8Co0.2O2-x. Both electrode materials show acceptable stability in acid media and are active electrocatalysts for oxygen evolution. Despite similar structure and chemical composition the oxygen evolution on RuO2 is controlled by charge transfer processes; the oxygen evolution on Ru0.8Co0.2O2-x is controlled by chemical steps of the electrode process. The oxygen evolution is in both cases affected by the particle size. Increasing particle size suppresses oxygen evolution on RuO2, but enhances it on Ru0.8Co0.2O2-x anodes. The opposite trends in electrochemical behavior of RuO2 and Ru0.8Co0.2O2-x are attributed to a specific effect of cobalt, which substitutes the Ru in the structure ...

Druh

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

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

<a href="/cs/project/1ET400400413" target="_blank" >1ET400400413: Vývoj programového prostředí pro matematické simulace a predikce v katalýze a elektrokatalýze</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Electrochemistry Communications

ISSN

1388-2481

e-ISSN

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Svazek periodika

8

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

1417-1422

Kód UT WoS článku

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EID výsledku v databázi Scopus

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