Synthesis of nanocrystalline gadolinium doped ceria via sol-gel combustion and sol-gel synthesis routes

被引：48

作者：

Zarkov, Aleksej ^{[1
]}

Stanulis, Andrius ^{[1
,2
]}

Salkus, Tomas ^{[3
]}

Kezionis, Algimantas ^{[3
]}

Jasulaitiene, Vitalija ^{[2
]}

Ramanauskas, Rimantas ^{[2
]}

Tautkus, Stasys ^{[1
]}

Kareiva, Aivaras ^{[1
]}

机构：

[1] Vilnius State Univ, Fac Chem, Naugarduko 24, LT-03225 Vilnius, Lithuania

[2] Ctr Phys Sci & Technol, Inst Chem, A Gostauto 9, LT-01108 Vilnius, Lithuania

[3] Vilnius State Univ, Fac Phys, LT-10222 Vilnius, Lithuania

来源：

CERAMICS INTERNATIONAL | 2016年 / 42卷 / 03期

关键词：

Sol-gel processes; Electrical properties; CeO2; Fuel cells; OXIDE FUEL-CELLS; YTTRIA-STABILIZED ZIRCONIA; IT-SOFCS; ELECTRICAL-PROPERTIES; IONIC-CONDUCTIVITY; AQUEOUS-SOLUTIONS; GRAIN-SIZE; ELECTROLYTE; TEMPERATURE; GD;

D O I：

10.1016/j.ceramint.2015.11.066

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Gadolinium doped ceria (GDC) has been investigated as a promising material for application as an electrolyte in intermediate temperature solid oxide fuel cells (IT-SOFC). In this work, 10GDC powders (Gd0.1Ce0.9O1.95) were synthesized by sol gel combustion and sol gel synthesis routes using the same complexing agents in both procedures. The thermal behavior of Gd-Ce-O precursor gels was investigated by TG-DSC measurements. X-ray diffraction (XRD) analysis was used for the characterization of phase purity and crystallinity of synthesized samples. Scanning electron microscopy (SEM) was employed for the estimation of surface morphological features. Nitrogen-adsorption desorption (BET model) was used for evaluation of specific surface area. The surface composition was determined by X-ray photoelectron spectroscopy (XPS). Electrical properties of synthesized ceramic samples were studied by means of impedance spectroscopy. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：3972 / 3988

页数：17

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