Dielectric relaxation and ionic conductivity studies of Na2ZnP2O7

被引：14
作者：
Chouaib, S. [1 ]
Ben Rhaiem, A. [1 ]
Guidara, K. [1 ]
机构：
[1] Fac Sci, Lab Etat Solide, Sfax, Tunisia
来源：
BULLETIN OF MATERIALS SCIENCE | 2011年 / 34卷 / 04期
关键词：
Equivalent circuit; electrical modulus; a.c; conductivity; hopping mechanism; MIXED-CRYSTAL (NH4)(3)H(SO4)(1.42)(SEO4)(0.58); ELECTRICAL-PROPERTIES; FLUORIDE GLASSES; AC CONDUCTIVITY; ALKALI FLUORIDE; PARAMETERS; TRANSPORT; BEHAVIOR; SPECTRA;
D O I：
10.1007/s12034-011-0214-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Na2ZnP2O7 compound was obtained by the conventional solid-state reaction. The sample was characterized by X-ray powder diffraction, infrared analysis and electrical impedance spectroscopy. The impedance plots show semicircle arcs at different temperatures and an electrical equivalent circuit has been proposed to explain the impedance results. The circuits consist of the parallel combination of bulk resistance R p and constant phase elements CPE. Dielectric data were analyzed using complex electrical modulus M* for the sample at various temperatures. The frequency dependence of the conductivity is interpreted in terms of Jonscher's law. The conductivity sigma(d.c). follows the Arrhenius relation. The near value of activation energies obtained from the analysis of M" and conductivity data confirms that the transport is through ion hopping mechanism, dominated by the motion of the Na+ ions in the structure of the investigated materials.
引用
收藏
页码：915 / 920
页数：6
相关论文
共 31 条
[1]   THE ACTIVATION ENTROPY FOR TRANSPORT IN IONIC CONDUCTORS [J].
ALMOND, DP ;
WEST, AR .
SOLID STATE IONICS, 1987, 23 (1-2) :27-35
[2]   ac conductivity analysis and dielectric relaxation behaviour of NaNO3-Al2O3 composites [J].
Anantha, PS ;
Hariharan, K .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2005, 121 (1-2) :12-19
[3]   Crystal structure of Na2ZnP2O7:: Reinvestigation [J].
Belharouak, I ;
Gravereau, P ;
Parent, C ;
Chaminade, JP ;
Lebraud, E ;
Le Flem, G .
JOURNAL OF SOLID STATE CHEMISTRY, 2000, 152 (02) :466-473
[4]   Electrical conductivity and dielectric analysis of AgNaZnP2O7 compound [J].
Ben Rhaiem, A. ;
Hlel, F. ;
Guidara, K. ;
Gargouri, M. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 485 (1-2) :718-723
[5]   CONDUCTIVITY RELAXATION AND CHAIN MOTIONS IN CONJUGATED CONDUCTING POLYMERS - NEUTRAL POLY(3-ALKYLTHIOPHENE)S [J].
CHEN, SA ;
LIAO, CS .
MACROMOLECULES, 1993, 26 (11) :2810-2816
[6]   Structure and electrical properties of crystalline and glassy Ag2PbP2O7 [J].
Dridi, N ;
Boukhari, A ;
Réau, JM ;
Arbib, E ;
Holt, EM .
MATERIALS LETTERS, 2001, 47 (4-5) :212-218
[7]   Crystal structure and ionic conductivity of crystalline and glassy Na2PbP2O7 [J].
Dridi, N ;
Boukhari, A ;
Réau, JM ;
Arbib, E ;
Holt, EM .
SOLID STATE IONICS, 2000, 127 (1-2) :141-149
[8]   Crystal structures of the new diphosphates, K2NiP2O7 and K6Sr2Ni5(P2O7)(5) [J].
ElMaadi, A ;
Boukhari, A ;
Holt, EM .
JOURNAL OF CHEMICAL CRYSTALLOGRAPHY, 1995, 25 (09) :531-536
[9]   THE CRYSTAL-STRUCTURE OF ALPHA-NA2CUP2O7 AND BETA-NA2CUP2O7 [J].
ERRAGH, F ;
BOUKHARI, A ;
ABRAHAM, F ;
ELOUADI, B .
JOURNAL OF SOLID STATE CHEMISTRY, 1995, 120 (01) :23-31
[10]   Disodium zinc pyrophosphate and disodium (europium) zinc pyrophosphate [J].
Erragh, F ;
Boukhari, A ;
Sadel, A ;
Holt, EM .
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY, 1998, 54 :1373-1376
1234