Improvements in co-electrolysis performance and long-term stability of solid oxide electrolysis cells based on ceramic composite cathodes

Yoon, Sung-Eun; Ahn, Jae-Yeong; Kim, Byung-Kook; Park, Jong‐Sung

doi:10.1016/j.ijhydene.2015.08.012

Cited by 35 publications

(32 citation statements)

References 24 publications

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“…The decrease in the electrochemical performance at a low operating temperature may be a combined effect of an increase in the ohmic resistance (decrease in the O 2À ion conductivity) of the electrolyte and the slow reaction kinetics at the electrodes. These results also show a trend similar to those reported by other researchers [5,8,26]. SOC cell while varying the cathode flow rate from 50 cc/min to 150 cc/min were investigated while holding the other conditions constant.…”

Section: Resultssupporting

confidence: 89%

“…According to the findings of other researchers on H 2 OeCO 2 coelectrolysis [24,25], when the current density is initially increased, a significant increase in the produced H 2 concentration is observed, whereas a very small change in the produced CO concentration is observed. In addition, at higher current densities, although a clear increase in the CO concentration is observed, the H 2 concentration remains nearly unchanged [26]. The most likely reason is that the H 2 produced by the electrolysis of steam is mainly consumed by the RWGS reaction to produce CO [8,27].…”

Section: Resultsmentioning

confidence: 96%

See 1 more Smart Citation

Electrochemical performance of H2O–CO2 coelectrolysis with a tubular solid oxide coelectrolysis (SOC) cell

Lee

et al. 2016

International Journal of Hydrogen Energy

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 96%

Electrochemical performance of H2O–CO2 coelectrolysis with a tubular solid oxide coelectrolysis (SOC) cell

Lee

et al. 2016

International Journal of Hydrogen Energy

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“…[47][48][49][50][51][52][53] To minimize the degradation anumber of different electrode materials have been suggested. [47][48][49][50][51][52][53] To minimize the degradation anumber of different electrode materials have been suggested.…”

Section: Alternative Materialsmentioning

confidence: 99%

“…In literature only af ew studies are available looking at alternative materials. [47][48][49][50][51][52][53] To minimize the degradation anumber of different electrode materials have been suggested. Them ost favored material is of the type (La 0.75 Sr 0.25 ) 0.97 Cr 0.5 Mn 0.5 O 3Àd (LSCM).…”

Section: Alternative Materialsmentioning

confidence: 99%

Power‐to‐Syngas: An Enabling Technology for the Transition of the Energy System?

et al. 2017

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Power-to-X concepts promise a reduction of greenhouse gas emissions simultaneously guaranteeing a safe energy supply even at high share of renewable power generation, thus becoming a cornerstone of a sustainable energy system. Power-to-syngas, that is, the electrochemical conversion of steam and carbon dioxide with the use of renewably generated electricity to syngas for the production of synfuels and high-value chemicals, offers an efficient technology to couple different energy-intense sectors, such as "traffic and transportation" and "chemical industry". Syngas produced by co-electrolysis can thus be regarded as a key-enabling step for a transition of the energy system, which offers additionally features of CO -valorization and closed carbon cycles. Here, we discuss advantages and current limitations of low- and high-temperature co-electrolysis. Advances in both fundamental understanding of the basic reaction schemes and stable high-performance materials are essential to further promote co-electrolysis.

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“…Es gibt nur wenige Veröffentlichungen über die Suche nach Alternativmaterialien . Um die Zerstörung der Zellen zu minimieren, wurde eine Reihe von Elektrodenmaterialien vorgeschlagen, von denen der Perowskit (La 0.75 Sr 0.25 ) 0.97 Cr 0.5 Mn 0.5 O 3− δ (LSCM) favorisiert wird .…”

Section: Techniken Der Hochtemperatur‐co‐elektrolyse Zur Synthesegasunclassified

Power‐to‐Syngas – eine Schlüsseltechnologie für die Umstellung des Energiesystems?

et al. 2017

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Durch Power‐to‐X‐Konzepte sollte die Emission von Treibhausgasen bei zugleich stabiler Energieversorgung, sogar bei einem hohen Anteil an Stromerzeugung aus erneuerbaren Quellen, signifikant reduziert werden, was sie zu einem Eckpfeiler nachhaltiger Energiesysteme macht. Power‐to‐Syngas, die elektrochemische Konversion von Wasserdampf und Kohlendioxid mithilfe regenerativ erzeugter Elektrizität in Synthesegas für die Produktion synthetischer Treibstoffe und hochwertiger Chemikalien, eignet sich somit hervorragend für die Kupplung energieintensiver Sektoren wie “Verkehr und Transport” und “chemische Industrie”. Durch Co‐Elektrolyse hergestelltes Synthesegas ist daher für die Energiewende essenziell und bietet zudem die Möglichkeit zur CO2‐Valorisierung und zum Schließen von Kohlenstoffkreisläufen. Im Folgenden werden Vorteile und gegenwärtige technische Einschränkungen der Tief‐ und Hochtemperatur‐Co‐Elektrolyse behandelt. Ein besseres Verständnis der Reaktionen und stabile, leistungsstarke Materialien sind für weitere Fortschritte der Co‐Elektrolysetechnologie wesentlich.

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Improvements in co-electrolysis performance and long-term stability of solid oxide electrolysis cells based on ceramic composite cathodes

Cited by 35 publications

References 24 publications

Electrochemical performance of H2O–CO2 coelectrolysis with a tubular solid oxide coelectrolysis (SOC) cell

Electrochemical performance of H2O–CO2 coelectrolysis with a tubular solid oxide coelectrolysis (SOC) cell

Power‐to‐Syngas: An Enabling Technology for the Transition of the Energy System?

Power‐to‐Syngas – eine Schlüsseltechnologie für die Umstellung des Energiesystems?

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