Hydrogen diffusion mechanism in proton conducting oxides

被引：70
|
作者：
Hempelmann, R
机构：
[1] Physikalische Chemie, Universität des Saarlandes, D-66123 Saarbrücken
来源：
PHYSICA B | 1996年 / 226卷 / 1-3期
关键词：
D O I：
10.1016/0921-4526(96)00251-7
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
By means of quasielastic neutron scattering on Yb-doped SrCeO3 we have studied the atomistic proton diffusion mechanism in proton conducting perovskites simultaneously in space and time. Proton diffusion consists of a sequence of trapping and free diffusion events. The free diffusion corresponds to the Grotthus mechanism including very fast rotations around oxygen ions.
引用
收藏
页码：72 / 77
页数：6
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