Solid oxide electrolysis – a key enabling technology for sustainable energy scenarios

Hansen, Jens Peter

doi:10.1039/c5fd90071a

Cited by 113 publications

(70 citation statements)

References 83 publications

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“…Among the various water electrolysis methods, high‐temperature electrolysis (HTE) using solid oxide electrolysis cells (SOECs) has attracted substantial attention over the last decade because of high efficiency of conversion and low energy consumption . An SOEC is essentially a solid oxide fuel cell operating in reverse using electricity to split water molecules in steam into hydrogen and oxygen.…”

Section: Introductionmentioning

confidence: 99%

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

et al. 2019

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High‐temperature electrolysis (HTE) using solid oxide electrolysis cells (SOECs) is a promising hydrogen production technology and has attracted substantial research attention over the last decade. While most studies are conducted on hydrogen electrode‐supported type cells, SOEC operation using metal‐supported cells has received minimal attention. The development of metal‐supported SOECs with performance similar to the best conventional SOECs is reported. These cells have stainless steel supports on both sides, 10Sc1CeSZ electrolyte and electrode backbones, and nano‐structured catalysts infiltrated on both hydrogen and oxygen electrode sides. Samarium‐doped ceria (SDC) mixed with Ni is infiltrated as a hydrogen electrode catalyst, and the effect of ceria:Ni ratio is studied. On the oxygen electrode side, catalysts including lanthanum strontium manganite (LSM), lanthanum strontium cobalt ferrite (LSCF), praseodymium oxide (Pr6O11), and their composite catalysts with SDC (i.e., LSM‐SDC, LSCF‐SDC, and Pr6O11‐SDC) are compared. Using the materials with highest catalytic activity (Pr6O11‐SDC and SDC40‐Ni60) and optimizing the catalyst infiltration processes, excellent electrolysis performance of metal‐supported cells is achieved. Current densities of −5.31, −4.09, −2.64, and −1.62 A cm−2 are achieved at 1.3 V and 50 vol% steam content at 800, 750, 700, and 650 °C, respectively.

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Section: Introductionmentioning

confidence: 99%

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

et al. 2019

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“…Among previous experimental studies related to the operation of the same SOC as a fuel cell and as an electrolyser, the evaluation of Ni-YSZ/YSZ/LSM-YSZ, Ni-YSZ/YSZ/CGO/LSCF-CGO and Ni-YSZ/YSZ/ /CGO/LSC-CGO cells was done by [9]. For the purpose of comparative analysis, the currently obtained results were plotted against the literature data reported previously.…”

Section: Resultsmentioning

confidence: 99%

“…5. It should be noted that while the current cell was analyzed at temperature of 850 • C, data reported by Technical University of Denmark [9] were obtained for 800 • C.…”

Section: Resultsmentioning

confidence: 99%

Preliminary Electrochemical Characterization of Anode Supported Solid Oxide Cell (AS-SOC) Produced in the Institute of Power Engineering Operated in Electrolysis Mode (SOEC)

Kupecki

Motyliński

Skrzypkiewicz

et al. 2017

Archives of Thermodynamics

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The article discusses the operation of solid oxide electrochemical cells (SOC) developed in the Institute of Power Engineering as prospective key components of power-to-gas systems. The fundamentals of the solid oxide cells operated as fuel cells (SOFC -solid oxide fuel cells) and electrolysers (SOEC -solid oxide fuel cells) are given. The experimental technique used for electrochemical characterization of cells is presented. The results obtained for planar cell with anodic support are given and discussed. Based on the results, the applicability of the cells in power-to-gas systems (P2G) is evaluated.

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“…Die SOEC als essenzieller Bestandteil einer energetisch optimierten Power‐to‐Methan‐Kette besitzt den geringsten Technologiereifegrad aller Teilverfahren und somit die größten Unsicherheiten bezüglich Praxistauglichkeit. Aufgrund der Vorteile ist allerdings davon auszugehen, dass die Technologie zukünftig eine wichtige Rolle im Energiesektor und in der Industrie spielen wird . Nach aktuellem Stand der Technik weisen die beständigsten Zellen bei einer Stromdichte von −0,9 A cm −2 eine Lebensdauer von über 23 000 h mit einer Degradation von 0,6 %/1000 h auf , .…”

Section: Prozesskettenentwicklungunclassified

“…(5). [29][30][31]. Nach aktuellem Stand der Technik weisen die beständigsten Zellen bei einer Stromdichte von -0,9 A cm -2 eine Lebensdauer von über 23 000 h mit einer Degradation von 0,6 %/1000 h auf [32,33].…”

Section: Hochtemperaturelektrolyseunclassified

CNG und LNG aus biogenen Reststoffen – ein Konzept zur ressourcenschonenden Kraftstoffproduktion

Müller

Anghilante

Schmid

et al. 2019

Chemie Ingenieur Technik

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Es wurde ein Verfahren entwickelt, das die Umwandlung von Reststoffen zu methanbasierten Kraftstoffen unter höchstmöglichem Erhalt des biogenen Kohlenstoffs mithilfe von elektrischer Energie aus erneuerbaren Quellen ermöglicht. Waldrestholz, Stroh und Klärschlamm wurden als besonders relevante Einsatzstoffe identifiziert. Durch die hochintegrierte Kopplung von Vergasung, Hochtemperaturelektrolyse und Methanisierung wird der biogene Kohlenstoff aus den Edukten nahezu vollständig in das Produkt Methan überführt. Die Gestehungskosten sind dabei mit denen gegenwärtig eingesetzter Technologien vergleichbar und liegen bei Großanlagen im Bereich üblicher Werte der Biomethanerzeugung.A highly integrated process for the conversion of biogenic residues in combination with electricity from renewable sources to methane-based fuels was developed. Forest residues, straw and sewage sludge were identified as particularly relevant input feedstock. By combining gasification, high-temperature electrolysis and catalytic methanation, the biogenic carbon remains almost completely in the products. The matching temperature levels of the heat streams result in a very efficient process. The production costs are comparable to less resource-saving technologies and predictably lower than those of biomethane when plant capacities are increased.

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Solid oxide electrolysis – a key enabling technology for sustainable energy scenarios

Cited by 113 publications

References 83 publications

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis

Preliminary Electrochemical Characterization of Anode Supported Solid Oxide Cell (AS-SOC) Produced in the Institute of Power Engineering Operated in Electrolysis Mode (SOEC)

CNG und LNG aus biogenen Reststoffen – ein Konzept zur ressourcenschonenden Kraftstoffproduktion

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