Real‐Time Observation of Oxygen Diffusion in CGO Thin Films Using Spatially Resolved Isotope Exchange Raman Spectroscopy

Autor: Alexander Stangl, Nicolas Nuns, Caroline Pirovano, Kosova Kreka, Francesco Chiabrera, Albert Tarancón, Mónica Burriel

Publikováno v: Small Structures, Vol 5, Iss 11, Pp n/a-n/a (2024)

The exploitation of advanced materials for novel energy, health, and computing applications requires deep insight and fundamental understanding of physicochemical mechanisms, such as ionic and electronic conductivity, defect formation processes, and

Externí odkaz: https://doaj.org/article/a18fe965088a445195876d9e57d0cd3c

Probe electrode study of cathodically polarized PtIr-YSZ interfaces

Autor: Karin Vels Hansen, Torben Jacobsen, Kosova Kreka

Publikováno v: Hansen, K V, Kreka, K & Jacobsen, T 2019, ' Probe electrode study of cathodically polarized PtIr-YSZ interfaces ', Journal of Solid State Electrochemistry, vol. 23, no. 3, pp. 811-822 . https://doi.org/10.1007/s10008-018-04179-0

Local cathodic polarizations of yttria-stabilized zirconia were carried out with a PtIr probe as the working electrode in a controlled atmosphere high temperature scanning probe microscope to investigate the reduction of zirconia. Impedance spectrosc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ad62643f0a8452ef1b88cf07d0332d7
https://doi.org/10.1007/s10008-018-04179-0

Short-Term Strong Cathodic Polarization of Ni/YSZ and Pt/YSZ

Autor: Torben Jacobsen, Vignesh Balasubramanian, Karin Vels Hansen, Kosova Kreka

Publikováno v: Hansen, K V, Kreka, K, Balasubramanian, V & Jacobsen, T 2021, ' Short-term strong cathodic polarization of Ni/YSZ and Pt/YSZ ', Journal of the Electrochemical Society, vol. 168, no. 4, 044528 . https://doi.org/10.1149/1945-7111/abf87e

The initial stages of YSZ reduction and formation of intermetallic phases at Ni∣YSZ interfaces on strongly cathodically polarized electrodes were studied by a number of potential sweep and impedance techniques. The measurements were carried out in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d448c313a6ec1f395a1d0145ccc77c38
https://doi.org/10.1149/1945-7111/abf87e

Ex-situ tracking solid oxide cell electrode microstructural evolution in a redox cycle by high resolution ptychographic nanotomography

Autor: Vincenzo Esposito, Peter Stanley Jørgensen, Salvatore De Angelis, Ebtisam Abdellahi, Kosova Kreka, Esther H. R. Tsai, Mirko Holler, Jacob R. Bowen

Publikováno v: De Angelis, S, Jørgensen, P S, Esposito, V, Hsiao Rho Tsai, E, Holler, M, Kreka, K, Abdellahi, E & Bowen, J R 2017, ' Ex-situ tracking solid oxide cell electrode microstructural evolution in a redox cycle by high resolution ptychographic nanotomography ', Journal of Power Sources, vol. 360, pp. 520-527 . https://doi.org/10.1016/j.jpowsour.2017.06.035

For solid oxide fuel and electrolysis cells, precise tracking of 3D microstructural change in the electrodes during operation is considered critical to understand the complex relationship between electrode microstructure and performance. Here, for th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a5268656480a01907dcf77df559ae5f
https://orbit.dtu.dk/en/publications/6c85b968-38bf-4efb-b497-ad6277fe4d96

Electrochemical Study of (La0.6Sr0.4)0.99CoO3-δ Thin Film Microelectrodes

Autor: Kosova Kreka, Karin Vels Hansen, Torben Jacobsen, Kion Norrman, Christodoulos Chatzichristodoulou, Mogens Bjerg Mogensen

Publikováno v: ECS Meeting Abstracts. :1726-1726

Solid Oxide Fuel/Electrolysis Cells (SOFC/SOEC, collectively termed SOC) are one of the most promising reversible energy conversion/storage technologies. Long term durability is required for such devices to become economically feasible. One approach

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee3e076fa68cb72802d7b14632e0cffd
https://doi.org/10.1149/ma2017-02/39/1726