Excess free enthalpy of nanocrystalline silver, determined in a solid electrolyte cell

被引：28

作者：

Schroeder, A

Fleig, J

Drings, H

Wuerschum, R

Maier, J

Sitte, W

机构：

[1] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

[2] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[3] Graz Univ Technol, Inst Mat Phys, A-8010 Graz, Austria

[4] Univ Leoben, Dept Gen Analyt & Phys Chem, A-8700 Leoben, Austria

来源：

SOLID STATE IONICS | 2004年 / 173卷 / 1-4期

关键词：

silver; nanocrystals; solid state electrolyte; electromotive force; surface tension;

D O I：

10.1016/j.ssi.2004.07.058

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electromotive force (emf) of nanocrystalline silver (nano-Ag) vs. bulk Ag (micro-Ag) has been measured in a solid state electrochemical cell with RbAg4I5 as solid electrolyte, and thermodynamic and kinetic data have been extracted. The excess emf of nanocrystalline silver is evaluated as a function of time and temperature (333-413 K). It is quantified in terms of surface energy and curvature, and its transient is interpreted as an underlying relaxation process due to electrochemical Ostwald ripening. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：95 / 101

页数：7

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