Ionic conductivity studies on neodymium doped ceria in different atmospheres

被引：1
|
作者：
Bedekar, Vinila V. [1 ]
Patra, Saheli [2 ]
Dutta, Atanu [2 ]
Basu, R. N. [2 ]
Tyagi, A. K. [1 ]
机构：
[1] Bhabha Atom Res Ctr, Div Chem, Bombay 400085, Maharashtra, India
[2] Cent Glass & Ceram Res Inst, Kolkata 700032, India
来源：
INTERNATIONAL JOURNAL OF NANOTECHNOLOGY | 2010年 / 7卷 / 9-12期
关键词：
CeO2; powders-chemical preparation; sintering; ionic conductivity; grain boundaries; COMBUSTION SYNTHESIS;
D O I：
10.1504/IJNT.2010.034721
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nano-crystalline 10 and 20 mol% neodymium (Nd) doped ceria powders were prepared by gel-combustion synthesis. The single-phase nature of the nano powder has been confirmed by X-ray diffraction. These sinter-active nano powders resulted in dense products, as the sintered densities were found to be similar to 90% of theoretical densities. Ionic conductivity studies were carried out in air, hydrogen and oxygen atmospheres. The samples showed ionic conductivity of 1.3 x 10(-2) cm(-1) at 650 degrees C, and the activation energy values obtained in this system were in the range of 0.7-1.0 eV. These studies also revealed that no electronic conduction was observed, as the ionic conductivity values were almost similar in different environments.
引用
收藏
页码：1178 / 1187
页数：10
相关论文
共 50 条
  • [21] Enhanced ionic conductivity of Sm, Gd-doped ceria induced by modification of powder synthesis procedure
    Cioatera, N.
    Parvulescu, V.
    Rolle, A.
    Vannier, R. N.
    CERAMICS INTERNATIONAL, 2012, 38 (07) : 5461 - 5468
  • [22] Ionic conductivity of high-purity Gd-doped ceria solid solutions
    Zhang, TS
    Ma, J
    Cheng, H
    Chan, SH
    MATERIALS RESEARCH BULLETIN, 2006, 41 (03) : 563 - 568
  • [23] Density functional theory calculation on the effect of local structure of doped ceria on ionic conductivity
    Yoshida, H
    Inagaki, T
    Miura, K
    Inaba, M
    Ogumi, Z
    SOLID STATE IONICS, 2003, 160 (1-2) : 109 - 116
  • [24] Ionic Conductivity of Ceria-Doped Ion Exchange Membranes on the Basis of Sulfonated Polynaphthaleneimide
    S. A. Makulova
    Yu. A. Karavanova
    I. I. Ponomarev
    I. A. Stenina
    Yu. A. Volkova
    Petroleum Chemistry, 2018, 58 : 304 - 308
  • [25] Ionic Conductivity of Ceria-Doped Ion Exchange Membranes on the Basis of Sulfonated Polynaphthaleneimide
    Makulova, S. A.
    Karavanova, Yu. A.
    Ponomarev, I. I.
    Stenina, I. A.
    Volkova, Yu. A.
    PETROLEUM CHEMISTRY, 2018, 58 (04) : 304 - 308
  • [26] Dopant clustering and vacancy ordering in neodymium doped ceria
    Ming, Jing
    Leszczynska-Redek, Marzena
    Malys, Marcin
    Wrobel, Wojciech
    Jamroz, Jan
    Struzik, Michal
    Hull, Stephen
    Krok, Franciszek
    Abrahams, Isaac
    JOURNAL OF MATERIALS CHEMISTRY A, 2024, 12 (17) : 10203 - 10215
  • [27] Electrical conductivity of undoped, singly doped, and co-doped ceria
    Singh, Nitish Kumar
    Singh, Prabhakar
    Kumar, Devendra
    Parkash, Om
    IONICS, 2012, 18 (1-2) : 127 - 134
  • [28] Interface Effects on the Ionic Conductivity of Doped Ceria-Yttria-Stabilized Zirconia Heterostructures
    Pergolesi, Daniele
    Gilardi, Elisa
    Fabbri, Emiliana
    Roddatis, Vladimir
    Harrington, George F.
    Lippert, Thomas
    Kilner, John A.
    Traversa, Enrico
    ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (16) : 14160 - 14169
  • [29] Electrical conductivity of doubly doped ceria
    Zajac, Wojciech
    Molenda, Janina
    SOLID STATE IONICS, 2008, 179 (1-6) : 154 - 158
  • [30] Grain boundary blocking of ionic conductivity in nanocrystalline yttria-doped ceria thin films
    An, Jihwan
    Bae, Jiwoong
    Hong, Soonwook
    Koo, Bongjun
    Kim, Young-Beom
    Guer, Turgut M.
    Prinz, Fritz B.
    SCRIPTA MATERIALIA, 2015, 104 : 45 - 48
12345