Porovnání syntézy železanů(VI) v eutektické tavenine NaOH-KOH a ve vodných roztocích

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F08%3A00020004" target="_blank" >RIV/60461373:22310/08:00020004 - 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

Comparison of Ferrate(VI) Synthesis in Eutectic NaOH-KOH Melts and in Aqueous Solutions

Popis výsledku v původním jazyce

The electrochemical synthesis of ferrate(VI) was studied in an eutectic NaOH-KOH molten salt environment and in a highly alkaline mixed NaOH-KOH aqueous solution. Cyclic voltammetry and electrochemical impedance spectroscopy were used to characterise theprocesses taking place on the stationary iron electrode. Cyclic voltammetric curves show similar characteristics in both environments in the potential region of the active iron dissolution. The anodic current peak corresponding to the ferrate(VI) production was identified for both systems in a similar position close to the potential region denoting the start of the oxygen evolution. On the other hand a well defined cathodic current peak corresponding to the ferrate(VI) reduction appearing during the reverse potential scan is shifted to the significantly less cathodic potential in the molten salt when compared to the aqueous environment. This indicates significant differences in the properties of surface film developing in the transpass

Název v anglickém jazyce

Comparison of Ferrate(VI) Synthesis in Eutectic NaOH-KOH Melts and in Aqueous Solutions

Popis výsledku anglicky

The electrochemical synthesis of ferrate(VI) was studied in an eutectic NaOH-KOH molten salt environment and in a highly alkaline mixed NaOH-KOH aqueous solution. Cyclic voltammetry and electrochemical impedance spectroscopy were used to characterise theprocesses taking place on the stationary iron electrode. Cyclic voltammetric curves show similar characteristics in both environments in the potential region of the active iron dissolution. The anodic current peak corresponding to the ferrate(VI) production was identified for both systems in a similar position close to the potential region denoting the start of the oxygen evolution. On the other hand a well defined cathodic current peak corresponding to the ferrate(VI) reduction appearing during the reverse potential scan is shifted to the significantly less cathodic potential in the molten salt when compared to the aqueous environment. This indicates significant differences in the properties of surface film developing in the transpass

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/GA104%2F05%2F0066" target="_blank" >GA104/05/0066: Studie elektrochemické přípravy a separace železanu</a><br>

Návaznosti

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

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Journal of the Electrochemical Society

ISSN

0013-4651

e-ISSN

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Svazek periodika

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Číslo periodika v rámci svazku

155

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

000258038800046

EID výsledku v databázi Scopus

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