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Heterogeneous Doping of a Weak Covalent Electrolyte: Proton Conductivity Enhancement of Imidazole by Admixture of Oxide Particles
Author(s) -
Beyazyildirim Seniz,
Kreuer Klaus Dieter,
Schuster Michael,
Bhattacharyya Aninda Jiban,
Maier Joachim
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701823
Subject(s) - materials science , imidazole , conductivity , oxide , electrolyte , proton , doping , covalent bond , composite number , chemical engineering , ionic bonding , nanometre , inorganic chemistry , composite material , chemistry , ion , organic chemistry , electrode , optoelectronics , physics , quantum mechanics , engineering , metallurgy
The proton conductivity of composites comprising dispersions of various types of nanometer‐sized oxide particles in pure imidazole is investigated. The composite materials show significantly enhanced (up to a maximum of ten times in the case of sZrO 2 ) ionic conductivity compared to pure imidazole. The reason is the formation of a space–charge layer on the oxide surface, as a consequence of adsorptive interaction.