Relation Between Ni Particle Shape Change and Ni Migration in Ni–YSZ Electrodes – a Hypothesis

Autor: Sune Dalgaard Ebbesen, Mogens Bjerg Mogensen, Youkun Tao, Anne Hauch, Ming Chen, Xiufu Sun, Karin Vels Hansen, Peter Vang Hendriksen

Publikováno v: Mogensen, M B, Hauch, A, Sun, X, Chen, M, Tao, Y, Ebbesen, S D, Hansen, K V & Hendriksen, P V 2017, ' Relation Between Ni Particle Shape Change and Ni Migration in Ni–YSZ Electrodes – a Hypothesis ', Fuel Cells, vol. 17, no. 4, pp. 434-441 . https://doi.org/10.1002/fuce.201600222

This paper deals with degradation mechanisms of Ni–YSZ electrodes for solid oxide cells, mainly solid oxide electrolysis cells (SOECs), but also to some extent solid oxide fuel cells (SOFCs). Analysis of literature data reveals that several apparen

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https://orbit.dtu.dk/en/publications/78379eb9-02f2-4dd4-ac91-17a6a6610a92

TOF-SIMS characterization of impurity enrichment and redistribution in solid oxide electrolysis cells during operation

Autor: Peter Vang Hendriksen, Ragnar Kiebach, Christodoulos Chatzichristodoulou, Xiufu Sun, Ming Chen, Kion Norrman, Sune Dalgaard Ebbesen, Mogens Bjerg Mogensen

Publikováno v: Dalton Trans.. 43:14949-14958

TOF-SIMS analyses of state-of-the-art high temperature solid oxide electrolysis cells before and after testing under different operating conditions were performed. The investigated cells consist of an yttria stabilized zirconia (YSZ) electrolyte, a L

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f6a5521c1e4e1f237fd7a4056fa10cb
https://doi.org/10.1039/c4dt01053a

Biogas Upgrading Using SOEC with a Ni-ScYSZ Electrode

Autor: Sune Dalgaard Ebbesen, John Bøgild Hansen, Mogens Bjerg Mogensen

Publikováno v: ECS Transactions. 57:3217-3227

Biogas consists mainly of CH4, CO2 and small amounts of H2S. The value of biogas will increase significantly if it is upgraded to pipeline quality by converting CO2 and H2O in the biogas to CO and H2 using a Solid Oxide Electrolysis Cell (SOEC) follo

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https://doi.org/10.1149/05701.3217ecst

Degradation of Solid Oxide Cells during Co-Electrolysis of H2O and CO2: Carbon Deposition under High Current Densities

Autor: Mogens Bjerg Mogensen, Sune Dalgaard Ebbesen, Youkun Tao

Publikováno v: ECS Transactions. 50:139-151

During co-electrolysis of H2O and CO2 using solid oxide cells (SOCs) the risk of carbon deposition in the Ni-YSZ electrode under high current densities (~ 2.0 A/cm2) was studied in this work. Five galvanostatic tests were performed at current density

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https://doi.org/10.1149/05049.0139ecst

Durability of Solid Oxide Electrolysis Cells for Syngas Production

Autor: Per Hjalmarsson, Ming Chen, Yi-Lin Liu, Sune Dalgaard Ebbesen, Mogens Bjerg Mogensen, Peter Vang Hendriksen, Søren Højgaard Jensen, Xiufu Sun

Publikováno v: Journal of The Electrochemical Society. 160:F1074-F1080

), both the Ni-YSZ and the LSM-YSZ electrode degraded. The initial degradation(0 - 200 h) is mostly due to increasing of polarization resistance, while the long term degradation is mainly caused by increasing ofserial resistance.© 2013 The Electroch

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https://doi.org/10.1149/2.106309jes