Preparation, structure and electrical conductivity of pyrochlore-type Gd1-xEu2xSm1-xZr2O7 ceramics with a constant lattice parameter

被引：12
|
作者：
Liu, Zhan-Guo [1 ,2 ,3 ]
Ouyang, Jia-Hu [1 ]
Sun, Ke-Ning [2 ,3 ]
Zhou, Yu [1 ]
Xiang, Jun [1 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Acad Fundamental & Interdisciplinary Sci, Nat Sci Res Ctr, Harbin 150080, Peoples R China
[3] Harbin Inst Technol, Dept Appl Chem, Harbin 150001, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2011年 / 56卷 / 20期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Rare-earth zirconate; Solid electrolyte; Impedance spectroscopy; Electrical conductivity; OXIDE FUEL-CELLS; FLUORITE; GD;
D O I：
10.1016/j.electacta.2011.06.001
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A novel series of Gd1-xEu2xSm1-xZr2O7 (x=0, 1/3, 1/2, 2/3, 1) ceramics with a constant lattice parameter are prepared by solid-state reaction, and are then evaluated as possible solid electrolytes. The microstructure and electrical properties of Gd1-xEu2xSm1-xZr2O7 ceramics have been investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and complex impedance analysis. Gd1-xEu2xSm1-xZr2O7 ceramics exhibit a single phase of pyrochlore-type structure. The total conductivity of Gd1-xEu2xSm1-xZr2O7 ceramics obeys the Arrhenius relation, and gradually increases with increasing temperature from 723 to 1173 K. At 973-1173 K, the composition has little effect on electrical conductivity of Gd1-xEu2xSm1-xZr2O7 ceramics. Gd1-xEu2xSm1-xZr2O7 ceramics are oxide-ion conductors in the oxygen partial pressure range of 1.0 x 10(-4) to 1.0 atm at all test temperature levels. The maximum total conductivity of Gd1-xEu2xSm1-xZr2O7 ceramics is about 1.01 x 10(-2) S cm(-1) at 1173K in air. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：7045 / 7050
页数：6
相关论文
共 50 条
  • [41] Study of crystallographic, thermal and electrical properties of (Bi2O3)1-x-y(Tb4O7)x(Gd2O3)y electrolyte for SOFC application
    Ermis, Ismail
    Shaikh, S. P. S.
    CERAMICS INTERNATIONAL, 2018, 44 (15) : 18776 - 18782
  • [42] Tunable electronic band structure, luminescence properties and thermostability of (Gd1-xLax)2Si2O7:Ce scintillator by adjusting La/Gd ratio*
    Wei, Qinhua
    Zhou, Zhenzhen
    Zhang, Weijie
    Tang, Gao
    Liu, Qian
    Qin, Laishun
    Shi, Hongsheng
    JOURNAL OF RARE EARTHS, 2021, 39 (06) : 657 - 665
  • [43] Multi-scale structural regulation of negative temperature coefficient effect and electrical conduction mechanism of xSm2O3-(1-x )CaCu3Ti4O12 ceramics
    Yan, Meng-Han
    Zhang, Zhi-Fei
    Huang, Hai-Hua
    Li, Zi-Liang
    Li, Peng
    Hao, Ji-Gong
    Li, Wei
    Du, Juan
    Joshi, Mahesh Kumar
    Fu, Peng
    CERAMICS INTERNATIONAL, 2024, 50 (24) : 54390 - 54400
  • [44] Influence of aliovalent cation substitution on structural and electrical properties of Gd2(Zr1-xMx)2O7-δ (M = Sc, Y) systems
    Thampi, Vaisakhan D. S.
    Padala, Prabhakar Rao
    Renju, U. A.
    RSC ADVANCES, 2015, 5 (108): : 88675 - 88685
  • [45] Effect of heterovalent substitution on the electrical conductivity of (Yb1−xMx)2Ti2O7 (M = Ca, Ba; x = 0, 0.05, 0.1)
    A. V. Shlyakhtina
    I. V. Kolbanev
    O. K. Karyagina
    L. G. Shcherbakova
    Inorganic Materials, 2006, 42 : 528 - 531
  • [46] Studies on chemical stability in CO2 and H2O and electrical conductivity of perovskite-type Ba3In2Zr1-x Ce x O8 (x=0, 0.5, 1)
    El-Masri, Taleb
    Li, Qin
    Thangadurai, Venkataraman
    IONICS, 2010, 16 (07) : 581 - 589
  • [47] Local Structure Adaptations and Oxide Ionic Conductivity in the Type III Stability Region of (1-x)Bi2O3•xNb2O5
    Wind, Julia
    Sharma, Neeraj
    Yaremchenko, Aleksey A.
    Kharton, Vladislav V.
    Blom, Douglas A.
    Vogt, Thomas
    Ling, Chris D.
    CHEMISTRY OF MATERIALS, 2018, 30 (10) : 3387 - 3394
  • [48] A comparative and correlation structure-Ac conductivity analysis of doped 1%Eu3+ and undoped ceramic of Li2BaP2O7
    Mariem Beltaif
    Marwa Krichen
    Makram Megdiche
    Mohamed Dammak
    Ionics, 2019, 25 : 3247 - 3258
  • [49] A comparative and correlation structure-Ac conductivity analysis of doped 1%Eu3+ and undoped ceramic of Li2BaP2O7
    Beltaif, Mariem
    Krichen, Marwa
    Megdiche, Makram
    Dammak, Mohamed
    IONICS, 2019, 25 (07) : 3247 - 3258
  • [50] Unveiling the underlying mechanism of unusual thermal conductivity behavior in multicomponent high-entropy (La0.2Gd0.2Y0.2Yb0.2Er0.2)2 (Zr1-xCex)2O7 ceramics
    Zhang, Yonghe
    Xie, Min
    Wang, Zhigang
    Song, Xiwen
    Mu, Rende
    Gao, Jianquan
    Bao, Jinxiao
    Zhou, Fen
    Pan, Wei
    JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 958 (958)
12345