Elektrochemická redukce dusičnanů na paládiové elektrodě modifikované mědi

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Electrochemical nitrate reduction on copper modified palladium cathode

Popis výsledku v původním jazyce

Electrochemical nitrate reduction mechanism is strongly dependent on composition and pH of electrolyte and on cathode material. Strongly acidic or basic solutions were reported often in the literature. Only minimal studies deal with neutral or weakly alkaline solutions. This is caused by difficulties to keep stable solution pH during experiments. In present work 1 M solution of NaHCO3 was used. Palladium cathode was selected as one of the most catalytically active material with high selectivity to nitrogen as final product. Nitrate reduction was studied by voltametric techniques on rotating disk electrode. However, no electrocatalytic activity towards nitrate reduction of palladium electrode was observed. Also presence of another ions in solution did not show markable changes. Therefore, copper ions were added to the electrolyte because modifications of palladium electrode by copper are widely used to promote nitrate reduction activity. Significant increase of electrocatalytic activity

Název v anglickém jazyce

Electrochemical nitrate reduction on copper modified palladium cathode

Popis výsledku anglicky

Electrochemical nitrate reduction mechanism is strongly dependent on composition and pH of electrolyte and on cathode material. Strongly acidic or basic solutions were reported often in the literature. Only minimal studies deal with neutral or weakly alkaline solutions. This is caused by difficulties to keep stable solution pH during experiments. In present work 1 M solution of NaHCO3 was used. Palladium cathode was selected as one of the most catalytically active material with high selectivity to nitrogen as final product. Nitrate reduction was studied by voltametric techniques on rotating disk electrode. However, no electrocatalytic activity towards nitrate reduction of palladium electrode was observed. Also presence of another ions in solution did not show markable changes. Therefore, copper ions were added to the electrolyte because modifications of palladium electrode by copper are widely used to promote nitrate reduction activity. Significant increase of electrocatalytic activity

Druh

D - Stať ve sborníku

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název statě ve sborníku

55th Annual Meeting of the International Society of Electrochemistry. Book of Abstracts I.

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

1364

Název nakladatele

International Society of Electrochemistry, Ziti Publl.

Místo vydání

Thessaloniki

Místo konání akce

Thessaloniki

Datum konání akce

19. 9. 2004

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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