2014 03 14 I²CNER Seminar Series : Prof. Truls Norby

［Title］Protons and exotic hydrogen species in oxides - presence, effects, and applications ［Speaker］Prof. Truls Norby Professor, Department of Chemistry, University of Oslo, Norway ［Date & Time］Friday, March 14, 2014 4:00 p.m. ［Place］I2CNER Hall, Ito campus, Kyushu University ［Abstract］Protons dissolve as positive defects in oxides in equilibrium with surrounding water vapour. This affects the properties of the oxide and makes many of them proton conducting solid electrolytes for fuel cells or steam electrolysers, or mixed proton electron conducting hydrogen permeable membranes. The thermodynamics and kinetics involved are quite well understood, along with properties in grain boundaries and surfaces. Hydrogen defects play also a role in many semiconductors and solar materials. Some unexplained phenomena are discussed in terms of exotic hydrogen species. ［Host］Professor Hiroshige Matsumoto -- I2CNER　http://i2cner.kyushu-u.ac.jp/ ICER　http://icer.kyushu-u.ac.jp/