Electrochemical investigation of metal sulfides at mercury electrodes using thiourea as a source of sulfide ion

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F09%3A00008403" target="_blank" >RIV/00216275:25310/09:00008403 - 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

Electrochemical investigation of metal sulfides at mercury electrodes using thiourea as a source of sulfide ion

Popis výsledku v původním jazyce

A mercury sulfide layer was prepared at the surface of a mercury electrode by an anodic reaction in the presence of thiourea at the micromolar concentration level. Electrochemical reactions of mercury sulfide were investigated by a subsequent cathodic scan at near-neutral pH values and in the absence/presence of a second metal ion. It was proven that such prepared HgS layer is similar to that prepared by anodization in the presence of sulfide ion. Other metal sulfides were prepared via exchange reactionof mercury in HgS with a metal ion in solution, namely Zn, Ni or Cd. The method presented therein allows one electrochemical preparation and investigation of metal sulfides with no difficulty due to hydrogen sulfide volatility at pH < 12 and emphasizesthat this method can be applied to other systems consisting of a chalcogenide anion and a metal (like mercury or silver) being able of undergoing a reversible electrochemical reaction.

Název v anglickém jazyce

Electrochemical investigation of metal sulfides at mercury electrodes using thiourea as a source of sulfide ion

Popis výsledku anglicky

A mercury sulfide layer was prepared at the surface of a mercury electrode by an anodic reaction in the presence of thiourea at the micromolar concentration level. Electrochemical reactions of mercury sulfide were investigated by a subsequent cathodic scan at near-neutral pH values and in the absence/presence of a second metal ion. It was proven that such prepared HgS layer is similar to that prepared by anodization in the presence of sulfide ion. Other metal sulfides were prepared via exchange reactionof mercury in HgS with a metal ion in solution, namely Zn, Ni or Cd. The method presented therein allows one electrochemical preparation and investigation of metal sulfides with no difficulty due to hydrogen sulfide volatility at pH < 12 and emphasizesthat this method can be applied to other systems consisting of a chalcogenide anion and a metal (like mercury or silver) being able of undergoing a reversible electrochemical reaction.

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/LC06035" target="_blank" >LC06035: Centrum biofyzikální chemie, bioelektrochemie a bioanalýzy. Nové nástroje pro genomiku, proteomiku a biomedicínu.</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

2009

Kód důvěrnosti údajů

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

Název periodika

Electroanalysis

ISSN

1040-0397

e-ISSN

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Svazek periodika

21

Číslo periodika v rámci svazku

3-5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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