硅酸盐学报2012,Vol.40Issue(5):752-757,6.
固体氧化物燃料电池复合电解质粉体BaCe0.8Y0.2O3–δ-Ce0.8Gd0.2O1.9的制备及表征
Preparation and Characterization of Composite Electrolyte Powder BaCe0.8Y0.2O3-δ-Ce0.8Gd0.2O1.9 for Solid Oxide Fuel Cells
林冬 1王群浩 1彭开萍1
作者信息
- 1. 福州大学材料科学与工程学院,福州350108
- 折叠
摘要
Abstract
A novel mixed ionic composite electrolyte powder of BaCe0.8Y0.2O3-δ-Ce0.8Gd0.2O1.9(BCY-GDC in a molar ratio n(BCY): n(GDC) = 1:1) was synthesized via a two-step gel combustion method.The properties of BCY-GDC electrolyte sintered at different temperatures and the electrical performance of single cell with BCY-GDC electrolyte were investigated.The homogeneous BCY-GDC composite powder with the average particle size of 40 nm was synthesized.The relative density and conductivity of BCY-GDC pellet increased with increasing sintering temperature.The dense pellets with the BCY and GDC phases were obtained at the sintering temperatures of 1 450 ℃.The single cell with BCY-GDC composite electrolyte had an open circuit voltage of 0.95 V at 450 ℃ and a peak power density of 0.4 W/cm2 at 700 ℃.关键词
混合离子导体/中温固体氧化物燃料电池/复合电解质/烧结温度Key words
mixed ionic conductor/intermediate-temperature solid oxide fuel cells/composite electrolyte/sintering temperature分类
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林冬,王群浩,彭开萍..固体氧化物燃料电池复合电解质粉体BaCe0.8Y0.2O3–δ-Ce0.8Gd0.2O1.9的制备及表征[J].硅酸盐学报,2012,40(5):752-757,6.