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Localized electrochemical redox reactions in yttria-stabilized zirconia single crystals

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Localized electrochemical redox reactions in yttria-stabilized zirconia single crystals

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dc.contributor.author Rodenbücher, Christian pl
dc.contributor.author Szot, Kristof pl
dc.contributor.author Wrana, Dominik [SAP14009727] pl
dc.contributor.author Jany, Benedykt [SAP14007747] pl
dc.contributor.author Krok, Franciszek [SAP11015621] pl
dc.contributor.author Kort, Carsten pl
dc.date.accessioned 2020-09-04T13:56:17Z
dc.date.available 2020-09-04T13:56:17Z
dc.date.issued 2020 pl
dc.identifier.uri https://ruj.uj.edu.pl/xmlui/handle/item/245247
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/pl/legalcode *
dc.title Localized electrochemical redox reactions in yttria-stabilized zirconia single crystals pl
dc.type JournalArticle pl
dc.abstract.en Herein, electroreduction in yttria-stabilized zirconia are investigated by means of Hebb-Wagner polarization experiments. By performing optical and thermal microscopy on single crystals and thin films during the application of an electric field under vacuum or oxygen-tight sealed conditions, the movement of the reduction front from the cathode to the anode, which causes a blackening of the material, is monitored. When performing electrocoloration experiments on thin film samples, the progressing reaction of the blackened region was found to be inhomogeneous and evolves as a dendrite-like finger structure. The progression of the blackening fingers follow preferentially the electric field lines and thus are influenced by distortions in the field that can be caused by metallic particles embedded in the oxide. In contrast to this, in the first stage of the reduction process no significant influence of mechanically-induced dislocations on the morphology or kinetics on the electroreduction can be found. Only after a heavy electroreduction was a localized transformation of the surface region observed. There is an evolution of highly oxygen deficient ZrO_{x} regions, which have a characteristic checked topography pattern at the microscale level. pl
dc.description.volume 2 pl
dc.description.number 3 pl
dc.identifier.doi 10.1088/2515-7655/ab6b39 pl
dc.identifier.eissn 2515-7655 pl
dc.title.journal JPhys Energy pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.subtype Article pl
dc.identifier.articleid 034008 pl
dc.rights.original CC-BY; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0 pl
dc.identifier.project ROD UJ / OP pl
.pointsMNiSW [2020 A]: 20


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Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa