Sol-gel synthesis of polymer-YSZ hybrid materials for SOFC technology

被引：31

作者：

Egger, P ^{[1
]}

Sorarù, GD ^{[1
]}

Diré, S ^{[1
]}

机构：

[1] Univ Trent, Dipartimento Ingn Mat, I-38050 Trent, Italy

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2004年 / 24卷 / 06期

关键词：

composition-structure relationships; fuel cells; nanocomposites; sol-gel process; YSZ;

D O I：

10.1016/S0955-2219(03)00520-X

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：

Pure nanocrystalline cubic yttria-stabilized zirconia (YSZ) samples have been produced at temperatures as low as 800 degreesC by annealing in air hybrid free-standing sol-gel-derived films. The addition of polyvinylpyrrolidone (PVP) to the sol allows the preparation of crack free gel films. By casting the sol onto a mercury surface, films with thickneses in the range 80-100 mum were obtained. The thermal evolution of hybrid PVP-YSZ xerogels has been followed using FTIR spectroscopy, thermogravimetric analysis, X-ray diffraction and scanning electron microscopy. The influence of the polymer addition on final ceramic structure and microstructure has been studied by changing the polymer content. The "matrix effect" of PVP in controlling crystallite sizes has been found and related to the thermal degradation of the polymer. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1371 / 1374

页数：4

共 8 条

[1]

EGGER P, 2002, P 3 WORKSH IT SOL GE, P158

[2] Hybrid organic-inorganic materials: A land of multi-disciplinarity [J].

Judeinstein, P ;

Sanchez, C .

JOURNAL OF MATERIALS CHEMISTRY, 1996, 6 (04) :511-525

[3] Crack-free, thick ceramic coating films via non-repetitive dip-coating using polyvinylpyrrolidone as stress-relaxing agent [J].

Kozuka, H ;

Kajimura, M ;

Hirano, T ;

Katayama, K .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2000, 19 (1-3) :205-209

[4] Quantitative analysis of silicate glass in ceramic materials by the Rietveld method [J].

Lutterotti, L ;

Ceccato, R ;

Dal Maschio, R ;

Pagani, E .

EPDIC 5, PTS 1 AND 2, 1998, 278-2 :87-92

[5]

SAEGUSA T, 1990, J MACROMOL SCI CHEM, VA27, P1603

[6]

Schimd H., 1986, MATER RES SOC S P, V73, P739, DOI [DOI 10.1557/PROC-73-739, 10.1557/PROC-73-739]

[7] Organic/inorganic hybrid network materials by the sol-gel approach [J].

Wen, JY ;

Wilkes, GL .

CHEMISTRY OF MATERIALS, 1996, 8 (08) :1667-1681

[8]

Yoshida M, 1995, MATER RES SOC SYMP P, V392, P103, DOI 10.1557/PROC-392-103

← 1 →