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采用柠檬酸盐法制备了Ce1-xGd_xO2-x/2=0.05～0 3,摩尔分数)粉末。用水基流延成型法制备了NiO-Ce0.8Gd0.2O1.9(NiO-GDC)阳极薄膜,以20片阳极薄膜在恒温轴压装置上叠层,再将叠层片在1450℃保温3h得到固体氧化物燃料电池阳极。结果表明:所有组分的粉末均为单相立方萤石结构;Ce1-xGd_xO2-x/2的晶格常数与Gd3+的掺杂量呈一定的线性关系;流延生坯具有较好的柔韧性;阳极经氢气还原后,孔隙率为38.3%,抗弯强度为104MPa。
Abstract：Ce1-xGd_xO2-x/2(x = 0.05-0.3,mole fraction) powders were synthesized by a citrate method.A NiO-Ce0.8Gd0.2O1.9 (NiO-GDC) membrane was prepared by a water-based tape casting method.The anode fundus was fabricated from 20-layer membranes laminated in an isothermal axis-direction press and thereafter sintered at 1 450℃for 3 h.The results show that the powders were cubic fluorite structure.The lattice parameter increased with increasing Gd3+ content.The green tape had a superior ductile behavior. After the anode was reduced by H2,the porosity was 38.3%and the flexural strength reached 104 MPa.
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基本信息:
DOI：10.14062/j.issn.0454-5648.2011.04.004
中图分类号:TM911.4
引用信息:
[1]王剑,邵刚勤,余晓华,等.Ce_(1-x)Gd_xO_(2-x/2)粉末的柠檬酸盐法合成及其固体氧化物燃料电池阳极的叠层法制备[J].硅酸盐学报,2011,39(04):563-567.DOI:10.14062/j.issn.0454-5648.2011.04.004.
基金信息:
国家重点实验室专项经费(2008-ZD-1)资助项目
2011-04-15
2011-04-15