液相混合法合成Ba2Ti9O20研究

无机材料学报, 2001, 16(6): 1139-1143.

液相混合法合成Ba₂Ti₉O₂₀研究

何艳艳 , 唐霞辉 , 周毅 , 曾春莲

1.1. 华中理工大学激光技术国家重点实验室，武汉 430074

2. 2。中山大学高分子研究所，广州 510275

1.1. The State Key Luboratory of Laser Technology Huazhong University of Science and Technology

Wuhan 430074

China

2. 2. Institute of Polymer Science

Zhongshan University

Guangzhou 510275

关键词： Ba₂Ti₉O₂₀ , EDTA , synthesis , liquid mixing method

Preparation of Ba₂Ti₉O₂₀ Via the Liquid Mixing Method

HE Yan-Yan , TANG Xia-Hui , ZHOU Yi , ZENG Chun-Lian

Keywords： Ba₂Ti₉O₂₀ , EDTA , 合成 , 液相混合法

以ＥＤＴＡ为络合剂，乙二醇为酯化剂，利用液相混合法，合成了单相的Ｂａ_２Ｔｉ_９Ｏ_２０利用ＤＴＡ、ＴＧ、ＸＲＤ和Ｒａｍａｎ光谱等技术表征了树脂中间体和由此得到的氧化物粉末．Ｂａ_２Ｔｉ_９Ｏ_２０相在１０００℃开始出现，在１１００℃变成主相．在１２００℃可得到单相的ＢａＴｉ₉Ｏ₂₀.该方法简单易行，不需要低温条件或保护性气氛，也不需要长时间热处理．

The liquid mixing method by using ethylenediaminetetraacetic acid as a chelating agent to prepare Ba₂Ti₉O₂₀ was reported. The resin precursors were prepared and heated at 700℃ to 1200℃ in air. XRD was used to determine the phase transformations as a function of temperature. Single-phase Ba₂Ti₉O₂₀ was obtained at l200℃, without the prolonged heat treatment time. DTA, TG and Raman spectra were used to characterize the precursors and derived oxide powders, respectively

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