The influence of electrolyte composition on electrochemical ferrate(VI) synthesis. Part II: anodic dissolution kinetics of a steel anode rich in silicon

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F11%3A43892412" target="_blank" >RIV/60461373:22310/11:43892412 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10800-011-0332-x" target="_blank" >http://dx.doi.org/10.1007/s10800-011-0332-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10800-011-0332-x" target="_blank" >10.1007/s10800-011-0332-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The influence of electrolyte composition on electrochemical ferrate(VI) synthesis. Part II: anodic dissolution kinetics of a steel anode rich in silicon

Popis výsledku v původním jazyce

The anolyte composition and process temperature could improve the kinetics of iron anode dissolution and subsequent ferrate(VI) production significantly. This also holds for the anode composition. Silicon-rich steel (SRS) was employed as the anode material to produce ferrate(VI), and the characteristics observed were compared with those of the pure iron anode obtained during our previous study. Using anolytes 14 M NaOH, 14 M KOH and mixtures thereof, the systems were studied by means of potentiodynamicmethods, electrochemical impedance spectroscopy and batch electrolysis experiments. In addition, scanning electron microscopy and metallographic images of the material surface were taken to identify changes in the phase composition of the material, caused by anodic polarization in strongly alkaline solutions. The dissolution kinetics increases with increasing temperature and, at 60 °C, also with increasing K+ content in the anolyte. Compared to iron, SRS easily dissolves into ferrate(VI)

Název v anglickém jazyce

The influence of electrolyte composition on electrochemical ferrate(VI) synthesis. Part II: anodic dissolution kinetics of a steel anode rich in silicon

Popis výsledku anglicky

The anolyte composition and process temperature could improve the kinetics of iron anode dissolution and subsequent ferrate(VI) production significantly. This also holds for the anode composition. Silicon-rich steel (SRS) was employed as the anode material to produce ferrate(VI), and the characteristics observed were compared with those of the pure iron anode obtained during our previous study. Using anolytes 14 M NaOH, 14 M KOH and mixtures thereof, the systems were studied by means of potentiodynamicmethods, electrochemical impedance spectroscopy and batch electrolysis experiments. In addition, scanning electron microscopy and metallographic images of the material surface were taken to identify changes in the phase composition of the material, caused by anodic polarization in strongly alkaline solutions. The dissolution kinetics increases with increasing temperature and, at 60 °C, also with increasing K+ content in the anolyte. Compared to iron, SRS easily dissolves into ferrate(VI)

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/ME%20890" target="_blank" >ME 890: Mechanismus elektrochemické syntézy železanu sodného a draselného ? intenzifikace procesu produkce</a><br>

Návaznosti

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

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Journal of Applied Electrochemistry

ISSN

0021-891X

e-ISSN

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Svazek periodika

41

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

1125-1133

Kód UT WoS článku

000294477400013

EID výsledku v databázi Scopus

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