A simple sol-gel approach to synthesize nanocrystalline 8 mol% yttria stabilized zirconia from metal-chelate precursors: Microstructural evolution and conductivity studies

被引：19

作者：

Bagchi, Biswajoy ^{[1
]}

Basu, Rajendra Nath ^{[1
]}

机构：

[1] CSIR Cent Glass & Ceram Res Inst, Fuel Cell & Battery Div, Kolkata 700032, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 647卷

关键词：

Sol-gel; Yttria stabilized zirconia; Nanoparticles; Electrolyte; SOFC; IONIC-CONDUCTIVITY; DECOMPOSITION; ELECTROLYTES; BOUNDARY;

D O I：

10.1016/j.jallcom.2015.06.082

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A facile non alkoxide based sol-gel technique has been used to synthesize homogeneously distributed nanocrystalline 8 mol% yttria stabilized zirconia (YSZ) powder. The two steps of such powder preparation are gelation and thermal decomposition of metal-chelate complex in aqueous solution. Such nano powder was characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM), Field emission scanning electron microscope (FESEM), Fourier transform infra-red spectroscopy (FTIR) and BET surface area analyser. Upon calcinations at 600 degrees C, well crystallized nano-sized (10-15 nm) YSZ powder is obtained having spherical morphology and reasonably high surface area. The required ionic conductivity (0.107 S/cm) is achieved with 1200 degrees C sintered samples when measured at 1000 degrees C in air. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：620 / 626

页数：7

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