硅酸盐学报Issue(7)：944-949,6.DOI:10.7521/j.issn.0454-5648.2013.07.11
溶胶-凝胶法制备固体氧化物燃料电池阴极粉体La0.6Sr0.4Co0.4Fe0.6O3及其电性能
Preparation and Performance of Cathode Powder La0.6Sr0.4Co0.4Fe0.6O3 for Solid Oxide Fuel Cell by Sol-gel Method
摘要
Abstract
A nano-powder of La1–xSrxCo1–yFeyO3 (LSCF) cathode was perpared by the sol–gel method with PVA, citric acid and hexa-methylene tetramine as complexing agents. The crystalline phase, structure and particle size distribution were characterized by X-ray diffraction, transmission electron microscopy and Laser particle size analysis, respectively. The single cell via screen printing the LSCF (x=0.4, y=0.6) powder on an anode support half cell with a gadolinium doped ceria (GDC) barrier layer was fabricated at 1 000℃. The structure and performance of the single cell were characterized by scanning electron microscopy, mercury porosimetry and electrochemical workstation. The well-dispersive LSCF (x=0.4, y=0.6) powder with the rhombic hexahedron perovskite structure and the particle size of<50nm was obtained after calcining at 900℃. The maximum power density of single cell is 1.09W/cm2, the ohmic resistance is 0.17Ω·cm2 and the polarization resistance is 0.61Ω·cm2 when H2+3%H2O as anode gas and air as cathode gas are used.关键词
溶胶凝胶法/阴极/固体氧化物燃料电池Key words
sol-gel method/cathode/solid oxide fuel cell分类
化学工程引用本文复制引用
石纪军,吴也凡,罗凌虹,程亮,孙良良,徐序,黄祖志,邵由俊,吕晨..溶胶-凝胶法制备固体氧化物燃料电池阴极粉体La0.6Sr0.4Co0.4Fe0.6O3及其电性能[J].硅酸盐学报,2013,(7):944-949,6.基金项目
国家自然科学基金(51162014，51262010)；江西省青年科学基金(20114BAB216019)；江西省重大科技创新研究项目(20114ACE00300)。 （51162014，51262010）
