TSDC relaxation map analysis in a Na-mordenite zeolite

被引：10

作者：

Devautour, S

Henn, F

Giuntini, JC

Zanchetta, JV

Vanderschueren, J

机构：

[1] UMR 5617 CNRS, Lab Physicochim Mat Condensee, Equipe Chim Phys, F-34095 Montpellier 05, France

[2] Inst Chim Sart Tilman, Lab Chim Macromol & Chim Phys, B-4000 Liege, Belgium

来源：

SOLID STATE IONICS | 1999年 / 122卷 / 1-4期

关键词：

thermally stimulated current; relaxation map analysis; dielectric relaxation; mordenite; relaxation time distribution function;

D O I：

10.1016/S0167-2738(99)00048-X

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 analysis of thermally stimulated current measurements by the use of the RMA method (Relaxation Map Analysis) shows that in a mordenite-type zeolite, sodium ions are localized into three different sites. It is assumed that each RMA peak results from a distribution of relaxation times even though it corresponds to a very narrow domain of temperature. By varying this temperature window, it is thus possible to determine the contribution of each type of sodium to the whole dielectric response of the material. Therefore, the nature of the different Na+/mordenite network interaction can be assessed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：105 / 111

页数：7

共 22 条

[1] Dielectric properties of a faujasite Y as a function of the hydration state [J].