Kinetics Of Oxygen Electrode Reactions In Solid Oxide Cell

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918040" target="_blank" >RIV/60461373:22310/19:43918040 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.icct.cz/AngiologyKlon-ICCT/media/system/2019/ICCT-2019-Proceedings.pdf" target="_blank" >https://www.icct.cz/AngiologyKlon-ICCT/media/system/2019/ICCT-2019-Proceedings.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Kinetics Of Oxygen Electrode Reactions In Solid Oxide Cell

Popis výsledku v původním jazyce

La0.8Sr0.2Mn0.95O3-x (LSM) and ZrO2-Y2O3 (YSZ) are commonly used materials in high temperature solid oxide cells (SOCs). Particularly the degradation of electrode-electrolyte interface contact at an oxygen electrode has a great impact on SOCs overall performance. However, because the oxygen evolution or reduction reaction (OER/ORR) is predominantly responsible for cell activation losses. It is important to minimize these losses at the oxygen electrode. A thorough understanding of the electrochemical reactions and structural characteristics of the oxygen electrode-electrolyte interface is needed. Therefore, symmetrical LSM-YSZ-LSM cells were prepared to examine degradation mechanisms and kinetics of OER and ORR under different operating conditions. Each cell was examined by electrochemical methods and spectroscopic methods. Higher operating temperature leads to better performance; in contrast, the measured variation of oxygen concentration has a negligible effect on the cell performance.

Název v anglickém jazyce

Kinetics Of Oxygen Electrode Reactions In Solid Oxide Cell

Popis výsledku anglicky

La0.8Sr0.2Mn0.95O3-x (LSM) and ZrO2-Y2O3 (YSZ) are commonly used materials in high temperature solid oxide cells (SOCs). Particularly the degradation of electrode-electrolyte interface contact at an oxygen electrode has a great impact on SOCs overall performance. However, because the oxygen evolution or reduction reaction (OER/ORR) is predominantly responsible for cell activation losses. It is important to minimize these losses at the oxygen electrode. A thorough understanding of the electrochemical reactions and structural characteristics of the oxygen electrode-electrolyte interface is needed. Therefore, symmetrical LSM-YSZ-LSM cells were prepared to examine degradation mechanisms and kinetics of OER and ORR under different operating conditions. Each cell was examined by electrochemical methods and spectroscopic methods. Higher operating temperature leads to better performance; in contrast, the measured variation of oxygen concentration has a negligible effect on the cell performance.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/GC19-14244J" target="_blank" >GC19-14244J: Nerovnovnovážná termodynamika rozhraní pevná fáze/plyn ve vysokoteplotních elektrochemických celách s pevným elektrolytem</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 7th International Conference on Chemical Technology

ISBN

978-80-88307-00-6

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

102-107

Název nakladatele

Czech Society of Industrial Chemistry

Místo vydání

Prague

Místo konání akce

Mikulov

Datum konání akce

15. 4. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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