CAJ | 학술논문

BICUVOX.10(Bi2V0.9Cu0.1O5.35)粉体和膜片采用固态反应法(SSR)和EDTA-柠檬酸联合络合法(EC)制备,并使用X射线衍射、扫描电镜、氧气渗透测试和电化学阻抗谱方法对材料的件能进行了对比表征和测试.XRD和SEM结果表明,采用EC法更容易制备纯相的BICUVOX.10粉体,但是膜片的稳定性较SSR法制备的差.在不引起电压波动的前提下,采用SSR方法和EC方法制备的膜片上能加载的最大电流分别为1.6和1.2A/cm2,对应的400℃条件下透氧量分别为4.5和3.9ml/(min cm2).膜片的微结构如粒径等对透氧性能和电导性能影响很大.
BICUVOX.10(Bi2V0.9Cu0.1O5.35)분체화막편채용고태반응법(SSR)화EDTA-저몽산연합락합법(EC)제비,병사용X사선연사、소묘전경、양기삼투측시화전화학조항보방법대재료적건능진행료대비표정화측시.XRD화SEM결과표명,채용EC법경용역제비순상적BICUVOX.10분체,단시막편적은정성교SSR법제비적차.재불인기전압파동적전제하,채용SSR방법화EC방법제비적막편상능가재적최대전류분별위1.6화1.2A/cm2,대응적400℃조건하투양량분별위4.5화3.9ml/(min cm2).막편적미결구여립경등대투양성능화전도성능영향흔대.
Bi2V0.9Cu0.1O5.35(BICUVOX.10) powders and dense membranes were synthesized by the solid-state reaction (SSR) and EDTA-citric acid (EC) methods and investigated by X-ray diffraction, scanning electron microscopy, oxygen permeation test, and impedance spectroscopy. The results showed that the EC process gave pure BICUVOX.10 powder more easily than the SSR method. However, the membrane from the SSR method was more stable than the membrane from the EC method. The maximum current density without inducing potential instability through the membranes from the EC method and SSR method were, respectively, 1.6 and 1.2 A/cm2, and the oxygen fluxes were 3.9 and 4.5 ml/(rnin cm2) at 400℃. The microstructure of the membrane, such as the grain size, influenced the oxygen perme-ability and conductivity significantly.