کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9761662 1498423 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conductivity and ion dynamic studies in the Na4.7+xTi1.3−x(PO4)3.3−x (0≤x≤0.6) NASICON material
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Conductivity and ion dynamic studies in the Na4.7+xTi1.3−x(PO4)3.3−x (0≤x≤0.6) NASICON material
چکیده انگلیسی
The NASICON system Na4.7+xTi1.3−x(PO4)3.3−x is synthesized for 0.0≤x≤0.6 and investigated the electrical properties in wide range of frequency and temperature. By means of nonlinear least square fitting of appropriate equivalent circuits, the bulk conductivity is separated from electrode effects. Ac conductivity and permittivity data are analyzed by using conductivity formalism. The dc conductivity and hopping frequency activation energies are found to be in the range of 0.56-0.64 eV. The hopping frequency activation energy is in agreement to the activation energy of dc conductivity. The scaling behavior in ac conductivity is studied and observed that the ion dynamics is independent of temperature and composition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 176, Issues 13–14, 29 April 2005, Pages 1311-1318
نویسندگان
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