Oxide-Ion Conduction in the Dion–Jacobson-Type Layered Perovskites

Wenrui Zhang (Autor)

Buch | Softcover

123 Seiten

2023 | 1st ed. 2022
Springer Verlag, Singapore
978-981-19-2249-7 (ISBN)

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This book reports a study of a class of Dion–Jacobson-type layered perovskite oxides in which high oxide-ion conductivities in phases were discovered for the first time in the world. The oxide-ion conductors are important in various energy conversion devices and environmental protection applications such as solid-oxide fuel cells, oxygen gas sensors, oxygen separation membranes, and oxygen-based catalysts. The discoveries are based on a new screening method, called the bond valence method, combined with an original design concept. The present finding of high oxide-ion conductivity reported in the thesis suggested the potential of Dion–Jacobson phases as a platform to identify superior oxide-ion conductors.
To understand what causes such high oxide-ion conductivities in these layered perovskite oxides, the author analyzed their crystal structures at high temperature and described the relationship between oxide-ion conductivities and their crystal structures. A deep understanding of the mechanisms of oxide-ion diffusivity at an atomic level in the Dion–Jacobson phases is clarified.
The discovery of these materials, the new screening method, and the original design concept make possible the realization of many environment-friendly technologies. The findings in this thesis facilitate the possibilities for many novel applications that will help lead to a sustainable future.

Dr. Wenrui Zhang completed his Ph.D. in the School of Science, Department of Chemistry, at Tokyo Institute of Technology under his supervisor Professor Masatomo Yashima, graduating in March of 2020. He is a recipient of the Seiichi Tejima International Student Research Award of Tokyo Institute of Technology (2020). He is currently an assistant professor at Tokyo Institute of Technology, Japan. His research interests lie in ionic conductors, solid-state chemistry, and crystallography.

1. Introduction.- 2. New Oxide-ion conductors of Dion–Jacobson-Type Layered Perovskites CsBi2Ti2NbO10-δ and CsBi2–xMxTi2+yNb1–yO10‐x/2–y/2–δ (M = Mg, Ca, Sr and Ba; x = 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6; y = 0.2, 0.1, –0.1, and –0.2).- 3. New Oxide-ion conductors of Dion–Jacobson- Type Layered Perovskites CsLn2Ti2NbO10 (Ln = La, Pr, Nd, Sm, Gd, Ho and Yb) and CsLa2–xMxTi2+yNb1–yO10–x/2–y/2 (M = Ca, Sr and Ba; x = 0, 0.1; y = 0.1, 0 and –0.1).- 4. Conclusion and Future Work.

Erscheinungsdatum	25.05.2023
Reihe/Serie	Springer Theses
Zusatzinfo	89 Illustrations, color; 5 Illustrations, black and white; XII, 123 p. 94 illus., 89 illus. in color.
Verlagsort	Singapore
Sprache	englisch
Maße	155 x 235 mm
Themenwelt	Naturwissenschaften ► Chemie ► Analytische Chemie
Themenwelt	Technik ► Maschinenbau
Schlagworte	crystal structure • Dion–Jacobson phase • Ion diffusion • Layered perovskites • Oxide-ion conductors
ISBN-10	981-19-2249-7 / 9811922497
ISBN-13	978-981-19-2249-7 / 9789811922497
Zustand	Neuware