材料科学与工程学报2006，Vol.24Issue(6)：821-825,5.
共沉淀法制备Cu掺杂的钙钛矿型混合导体透氧材料
Preparation of Cu Doped Perovskite-type Mixed Conducting Membrane Materials by Coprecipitation Method
摘要
Abstract
Cu doped perovskite-type oxygen permeable ceramics were synthesized by coprecipitation method. The effects of pH value and aging time on the properties of the precursors and the oxygen permeation fluxes of the membranes were studied. The formation of the solid solution was studied by TG-DSC, the structure and the particle size distribution were determined by XRD and TEM. It was found that the preparation conditions with pH = 10 ～ 11 and 10 hours aging were optimal for coprecipitation method. The powder with pure perovskite structure was synthesized at 800℃ and the particle size was about 90 nm. The oxygen permeation test showed that the preparation conditions and Cu doping content had great effects on the oxygen permeability of the materials. At 900℃, the oxygen permeation flux of the SrFe0.6Ti0.1 Cu0.3 O3-δ membrane was 0.64 ml· min - 1 · cm - 2 (STP).关键词
透氧/钙钛矿/混合导体/共沉淀Key words
oxygen permeation/perovskite/mixed conductor/coprecipitation分类
通用工业技术引用本文复制引用
张恒,董新法,林维明..共沉淀法制备Cu掺杂的钙钛矿型混合导体透氧材料[J].材料科学与工程学报,2006,24(6):821-825,5.基金项目
This work was financially supported by Guangdong Natural Science Foundation(030514)and Science and Technology Programs of Guangdong Province 2004B33401006 ) （030514）
