Sauerstoffleerstellen

Kristall- und Gitterdefekte

Punktdefekte: Leerstellen (Vakanzen) im Kristallgitter

Sauerstoffleerstellen

Sauerstoffleerstellen sind punktförmige Defekte in Oxiden, bei denen Sauerstoffgitterplätze unbesetzt bleiben. Sie beeinflussen Ladungsausgleich, Ionenleitfähigkeit, Diffusionskinetik und Redoxverhalten. Ihre Konzentration wird durch Stöchiometrie, Dotierung, Temperatur und Sauerstoffpartialdruck gesteuert. Sauerstoffleerstellen sind zentral für Festoxidbrennstoffzellen, Katalyse, memristive Bauelemente und Defektchemie keramischer Werkstoffe.

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Neue Inhalte

Extrinsic point defects in BaTiO3-based ceramics

Marak, V. (Speaker)¹; Drdlik, D.¹; Tofel, P.¹; Kachlik, M.¹; Santana, V.¹; Maca, K.¹

FEMS EUROMAT 2023

Keynote Lecture

Atom Precision in Catalysis: a Precondition to Successful Efforts in Enhancing Developments in the Area of Sustainability through Artificial Intelligence Methods

Schunk, S.A. (Speaker)¹

MaterialsWeek 2025

Microstructure evolution of blacklight sintered barium titanate

Fulanovic, L. (Speaker)¹; Scherer, M.¹; Rödel, J.¹

Blacklight sintering of ferroelectric ceramics within a few seconds

Fulanovic, L. (Speaker)¹; Scherer, M.¹; Frömling, T.¹; Porz, L.¹; Rödel, J.¹

FEMS EUROMAT 2023

Role of Ca doping in the activity and stability of LaCoO3 nanoparticle electrocatalysts towards oxygen evolution reaction

Bai, F. (Speaker)¹; Li, T.¹

FEMS EUROMAT 2023

Surface-engineered CeO2 nanocrystals: A potential nanomedicine for oxidative stress mitigation

Sarkar, S. (Speaker)¹; Srivastava, R.¹; Kulkarni, A.¹

FEMS EUROMAT 2023

Revealing oxide heterointerface induced phenomenon by atomic-resolution transmission electron microscopy

Zhang, Z. (Speaker)¹; Haselmann, U.²; Ivanov, Y.¹; Kubicek, M.³

Electrostatic treatment of internal fields at grain boundaries in supercells of SrTiO$_3$ for classical atomistic calculations

Tao, C. (Speaker)¹; Elsässer, C.¹; Mutter, D.¹; Urban, D.¹

Highlight Lecture

Creep behavior of zirconia (8Y-CSZ) under DC and AC electric fields

Morita, K. (Speaker)¹; Nambu, K.²; Yamamoto, T.³; Yoshida, H.⁴

Beliebte Inhalte

Revealing oxide heterointerface induced phenomenon by atomic-resolution transmission electron microscopy

Zhang, Z. (Speaker)¹; Haselmann, U.²; Ivanov, Y.¹; Kubicek, M.³

Highlight Lecture

Creep behavior of zirconia (8Y-CSZ) under DC and AC electric fields

Morita, K. (Speaker)¹; Nambu, K.²; Yamamoto, T.³; Yoshida, H.⁴

Blacklight sintering of ferroelectric ceramics within a few seconds

Fulanovic, L. (Speaker)¹; Scherer, M.¹; Frömling, T.¹; Porz, L.¹; Rödel, J.¹

FEMS EUROMAT 2023

Extrinsic point defects in BaTiO3-based ceramics

Marak, V. (Speaker)¹; Drdlik, D.¹; Tofel, P.¹; Kachlik, M.¹; Santana, V.¹; Maca, K.¹

FEMS EUROMAT 2023

Keynote Lecture

Atom Precision in Catalysis: a Precondition to Successful Efforts in Enhancing Developments in the Area of Sustainability through Artificial Intelligence Methods

Schunk, S.A. (Speaker)¹

MaterialsWeek 2025

Surface-engineered CeO2 nanocrystals: A potential nanomedicine for oxidative stress mitigation

Sarkar, S. (Speaker)¹; Srivastava, R.¹; Kulkarni, A.¹

FEMS EUROMAT 2023

Electrostatic treatment of internal fields at grain boundaries in supercells of SrTiO$_3$ for classical atomistic calculations

Tao, C. (Speaker)¹; Elsässer, C.¹; Mutter, D.¹; Urban, D.¹

Role of Ca doping in the activity and stability of LaCoO3 nanoparticle electrocatalysts towards oxygen evolution reaction

Bai, F. (Speaker)¹; Li, T.¹

FEMS EUROMAT 2023

Microstructure evolution of blacklight sintered barium titanate

Fulanovic, L. (Speaker)¹; Scherer, M.¹; Rödel, J.¹

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