Synthesis of nanocrystalline samarium-doped CeO2 (SDC) powders as a solid electrolyte by using a simple solvothermal route

被引：68

作者：

Karaca, Tuba ^{[1
]}

Altincekic, Tuba Guerkaynak ^{[1
]}

Oksuzomer, M. Faruk ^{[1
]}

机构：

[1] Istanbul Univ, Fac Engn, Dept Chem Engn, TR-34320 Istanbul, Turkey

来源：

CERAMICS INTERNATIONAL | 2010年 / 36卷 / 03期

关键词：

Polyol process; Samarium-doped ceria; Solid oxide fuel cells; HYDROTHERMAL SYNTHESIS; OXIDE; CERIA; NANOPARTICLES; MORPHOLOGY; PARTICLES; METAL; FINE;

D O I：

10.1016/j.ceramint.2009.12.005

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：

Samarium-doped CeO2 is a leading electrolyte for applications in solid oxide fuel cells (SOFCs), which requires a typical sintering temperature of 1400-1600 degrees C. In this work, fully dense CeO2 ceramics doped with 10-20 at.% samarium have been fabricated by a simple polyol process. The XRD and SEM results show that a complete solid solution between CeO2 and samarium was obtained at the sintering temperature of 1300 degrees C. And also the densification temperature is significantly lower than those (1400-1600 degrees C) reported for the SDC powders processed by modified sal gel process and hydrothermal treatment. The resultant ceramics show the sizes of ultrafine grain are lower than 1 mu m. Crown Copyright (C) 2009 Published by Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1101 / 1107

页数：7

共 20 条

[1] Influence of synthesis conditions on particle morphology of nanosized Cu/ZnO powder by polyol method [J].

Altincekic, Tuba Guerkaynak ;

Boz, Ismail .

BULLETIN OF MATERIALS SCIENCE, 2008, 31 (04) :619-624

[2]

AYAWANNA J, PHASE DEV MICROSTRUC

[3] Homogeneous precipitation of cerium dioxide nanoparticles in alcohol/water mixed solvents [J].

Chen, HI ;

Chang, HY .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2004, 242 (1-3) :61-69

[4] SYNTHESIS AND CHARACTERIZATION OF FINE AND MONODISPERSE SILVER PARTICLES OF UNIFORM SHAPE [J].

DUCAMPSANGUESA, C ;

HERRERAURBINA, R ;

FIGLARZ, M .

JOURNAL OF SOLID STATE CHEMISTRY, 1992, 100 (02) :272-280

[5] HOMOGENEOUS AND HETEROGENEOUS NUCLEATIONS IN THE POLYOL PROCESS FOR THE PREPARATION OF MICRON AND SUB-MICRON SIZE METAL PARTICLES [J].

FIEVET, F ;

LAGIER, JP ;

BLIN, B ;

BEAUDOIN, B ;

FIGLARZ, M .

SOLID STATE IONICS, 1989, 32-3 :198-205

[6] Morphology-controllable synthesis of mesoporous CeO2 nano- and microstructures [J].

Ho, CM ;

Yu, JC ;

Kwong, T ;

Mak, AC ;

Lai, SY .

CHEMISTRY OF MATERIALS, 2005, 17 (17) :4514-4522

[7] Hydrothermal synthesis and properties of Ce1-xSmxO2-x/2 and Ce1-xCaxO2-x solid solutions [J].

Huang, W ;

Shuk, P ;

Greenblatt, M .

CHEMISTRY OF MATERIALS, 1997, 9 (10) :2240-2245

[8] Preparation of samaria-doped ceria for solid-oxide fuel cell electrolyte by a modified sol-gel method [J].

Jung, GB ;

Huang, TJ ;

Huang, MH ;

Chang, CL .

JOURNAL OF MATERIALS SCIENCE, 2001, 36 (24) :5839-5844

[9] Synthesis of CeO2 nanoparticles by mechanochemical processing and the inhibiting action of NaCl on particle agglomeration [J].

Li, YX ;

Chen, WF ;

Zhou, XZ ;

Gu, ZY ;

Chen, CM .

MATERIALS LETTERS, 2005, 59 (01) :48-52

[10]

MAKI Y, 1971, Patent No. 3607424

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