Study on the Effect of Proportion of Citric Acid to the Structure of Perovskite LaNiO3
Perovskite LaNiO3 which is used in bifunctional oxygen electrode is prepared by the sol-gel method using citric acid as complexing agent. Products are characterized using TG-DTA, XRD, SEM, et al. It showed that the proportion of citric acid have major influences on cineration of dried polymeric, the structure and component of LaNiO3. Uniformity nanoscaled LaNiO3 bar is got when the proportion of lanthanum nitrate, nickel nitrate and citric acid is between 1:1:0.6 and 1:1:0.7. Furthermore, the effect of sufficient or insufficient proportion of citric acid to the formation and cineration of sol-gel, to the purity of phases and spatial structures of LaNiO3 are discussed.
LaNiO3 sol-gel method citric acid perovskite oxides
WANG Yu-hua LU Xing-he SHE Hong-yan MAN Na
College of Chemical Engineering, Tianjin University, Tianjin 300072, China Hebei University of Engineering, Handa 056038, China
国际会议
北京
英文
306-307
2006-08-03（万方平台首次上网日期，不代表论文的发表时间）