Thermodynamic aspects and morphology of nano-structured ion conductors. Aspects

2019-12-10 00:45:40

potential effects size nano ion

责任者: Maier, J. 单位: Max-Planck-Inst. fur Festkorperforschung, Stuttgart, Germany 来源出处: Solid State Ionics, Diffusion Reactions(Solid State Ion. Diffus. React. (Netherlands)),2002/12/,154-155():291-301 摘要: Thermodynamic aspects of solids are addressed as far as necessary for the discussion of ion transport and morphological metastability of nano-crystalline matter. Special emphasis is laid on the distinction between trivial and true size effects. As far as true size effects with respect to point defect chemistry are concerned, i.e. phenomena connected with changes of local properties, it is meaningful to differentiate between electrical size effects (space charge overlap) and structural size effects. Both influence the electrochemical potential, the former via the electrical potential term, the latter-which also includes elastic effects-via the non-configurational part of the chemical potential 关键词: chemical potential;crystal morphology;electric potential;nanostructured materials;point defects;size effect;solid electrolytes;thermodynamic aspects;nanostructured ion conductors;nano ionics;ion transport;morphological metastability;nanocrystalline matter;point defect chemistry;electrical size effects;space charge overlap;structural size effects;electrochemical potential;electrical potential;elastic effects;chemical potential