The cyclic voltammetric study of ferrate(VI) formation in a molten Na/K hydroxide mixture

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F08%3A00020336" target="_blank" >RIV/60461373:22310/08:00020336 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The cyclic voltammetric study of ferrate(VI) formation in a molten Na/K hydroxide mixture

Original language description

The electrochemical synthesis of ferrate(VI) was studied in a molten salt environment as a function of temperature (170 - 200 ?C). A eutectic NaOH KOH melt was selected as the most appropriate system for this purpose. Cyclic voltammetry was used to characterize the processes taking place on the stationary iron electrode. The anodic current peaks corresponding to the ferrate(VI) production as well as cathodic current peaks corresponding to the ferrate(VI) reduction appeared to be strongly dependent on the temperature at which the experiment was performed. Ferrate(VI) formation by anodic oxidation of the iron electrode in the molten electrolyte during the batch electrolysis was confirmed for the first time by visible and Mössbauer spectroscopy. The maximum current efficiency of Fe(VI) formation reached during galvanostatic batch electrolysis has attained 72 %. It was reached at the temperature of 170 ?C.

Czech name

Studium tvorby železanu(VI) v tavenine Na/K hydroxidu cyklickou voltametrií

Czech description

V rámci této práce byla studována elektrochemická syntéza železanů v prostředí eutektické taveniny směsi hydroxidu sodného a draselného. K charakterizaci dějů probíhajících na povrchu elektrod byla použita cyklická voltametrie. Vznik železanu byl potvrzen spektrofotometricky a pomocí Moessbauerovy spektroskopie. Účinnost syntézy je silně závislá na použité pracovní teplotě.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CG - Electrochemistry

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2008

Confidentiality

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

Name of the periodical

Electrochimica Acta

ISSN

0013-4686

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

54

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

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UT code for WoS article

000263282400008

EID of the result in the Scopus database

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