Y-substituted barium zirconate, a proton conducting electrolyte for applications at intermediate temperatures [Elektronische Ressource] / Sophie Duval

Technische Universität München Lehrstuhl für Technische Physik Y-Substituted Barium Zirconate, a Proton Conducting Electrolyte for Applications at Intermediate Temperatures Sophie Duval Vollständiger Abdruck der von der Fakultät für Chemie der Technischen Universität München zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften (Dr. rer. nat.) genehmigten Dissertation. Vorsitzender: Univ.-Prof. Dr. Th. Fässler Prüfer der Dissertation: 1. Univ.-Prof. Dr. U. Stimming 2. Univ.-Prof. Dr. R. Niewa Die Dissertation wurde am 13.03.2008 bei der Technischen Universität München eingereicht und durch die Fakultät für Chemie am 30.06.2008 genommen. Summary Summary Materials with high and pure proton conductivities are candidates for electrolytes in sensors, batteries, fuel cells, and electrolysers. The typical proton conductors developed a couple of decades ago were mainly acidic or hydrous inorganic compounds. Later, entirely different classes of materials gained increasing interest as proton conductors such as: polymers, oxide ceramics, and intercalation compounds. Ceramics, particularly perovskites, have shown potential advantages in terms of operating temperature, mechanical strength, chemical, thermal and physical stability. BaZr Y O (BZY10) appears to be a promising electrolyte, since it was recently 0.9 0.