期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Synthesis of Li 3- 2x Zn x PO 4 by Citrate Sol-Gel Method and Its Ionic Conductivity
摘要/Abstract
采用柠檬酸盐溶胶-凝胶法制备了组成为Li3-2xZnxPO4(x=0.1～0.5)的固体粉末和烧结体,对其相结构的研究结果表明,当x=0.1～0.4时,烧结体是由γ-Li3PO4和α-Li4Zn(PO4)2两相构成的混合相,而x=0.5时,烧结体的相组成为α-Li4Zn(PO4)2单相,用这种合成方法得到样品的合成温度较传统的固相合成降低了约400℃.用交流阻抗技术测定了烧结体的导电性,随着组成的不同,样品显示出不同程度的导电性,当x=0.5、相结构为α-Li4Zn(PO4)2时,样品具有最高的导电性,25℃时σ=1.66μS/c
The samples of Li3- 2x Zn x PO4 (x= 0. 1 ～ 0. 5) were prepared by citrate sol-gel method.The results determined on structure showed that they wereT-Li4Zn(PO4)2+ VⅡ -Li3PO4(x= 0. 1 ～ 0. 4)mixedphase andα -Li4Zn( PO4)2(x= 0. 5) single phase in this system, formation temperatures of thesamples was much lower then those prepared by solid state reaction. Ionic conductivity of the sinterswas measured by ac impedance spectrum,in which the sample ofT -Li4Zn( PO4)2had a high Li cationicconductivity of 1. 66μ S /cm at 25 ℃ .