Grain Boundary Engineering of Electronic Ceramics PDF

ABSTRACT

The main classes and applications of solid proton conductors are listed briefly. The principles for understanding the proton conduction of high temperature proton conductors are sketched. The present developments on correlations and predictions of hydration of acceptor-doped oxides are treated in some more detail, and the proton conductivities of some representative established and new proton conducting oxides are plotted vs temperature. It is mentioned in passing that grain or domain boundary trapping or depletion of protons may be a problem in some oxides. Finally, a brief update is provided on the indications of negative or neutral hydrogen species in oxides under reducing conditions.

Edited by: Robert Freer, Jan Van Herle, Jan Petzelt