天津工业大学学报2012，Vol.31Issue(1)：17-20,4.
纳米稀土氧化物对PMMA-PC-LiClO4电解质体系的影响
Effect of nanosized rare earth oxides on PMMA-PC-LiClO4 polymer electrolyte
摘要
Abstract
Using nanosized rare earth oxides La2O3, CeO2, Y2O3 as fillers, and Propylene Carbonate ( PC) as organic solvent, the composite polymer electrolyte films PMMA-PC-LiC104-x% was prepared by sol-gel technique. It is found that the highest ionic conductivity of 7.4x10^ S/cm is achieved with the Y2O3 content of 1.3%, approximately 3 times higher than before. The increase of conductivity is due to the fact that Y2O3 nano-particles can effectively inhibit the films from crystallizing and expand the amorphous region required for the ion transport, and SEM, XRD confirm that. TOR shows that incorporated Y2O3 does not chemically interact but a physical volume effect. The results of TG illustrate that the added Y2O3 eletrolyte film will slightly improve the thermal stability, the remaining carbon increases from 2.8% to 8.9%. In addition, it can effectively prevent formation of air bubbles.关键词
纳米稀土氧化物/凝胶电解质/PMMA/Y2O3Key words
nanosized rare earth oxides/gel electrolyte/PMMA/Y2O3分类
化学化工引用本文复制引用
董子尧,李昕..纳米稀土氧化物对PMMA-PC-LiClO4电解质体系的影响[J].天津工业大学学报,2012,31(1):17-20,4.基金项目
国家自然科学基金项目(20974005) （20974005）
北京市自然科学基金项目(2102017) （2102017）
北京市科技新星项目(2007B010) （2007B010）
