微乳液法制备高分散性纳米氧化锆

摘要利用微乳液法,在表面活性剂(TX-10)-正己醇-环己烷(体积比为1.0∶1.3∶7.7)组成的微乳液体系中,控制反应物浓度为0.02 mol/L,乙醇置换水量为200 mL,焙烧温度为450℃,制得高分散性纳米氧化锆。氮气吸附试验结果表明,纳米氧化锆颗粒表面的孔径分布与其分散性之间存在对应关系。XRD分析显示,产物最初为无定形ZrO2,经450℃焙烧3 h后,氧化锆主要以四方晶相为主,伴随少量单斜晶相,焙烧温度升高至750℃后,得到单一纯净的单斜晶相氧化锆。

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	贾春瑶
	马智
	王延吉

关键词：氧化锆微乳液纳米微粒

Abstract： Nanometer ZrO_2 with high dispersibility was prepared in microemulsion system of TX-10/n-hexanol/cyclohexane under the volume ratio of 1.0∶1.3∶7.7 with concentration of reactors for 0.02 mol/L,200 mL displacement dose of water and at the roasting temperature of 450 ℃.N_2 absorption experiments showed that there were corelations between pore size distribution and dispersibility of nanometer ZrO_2.XRD results revealed that the fresh sample was amorphous,and tetragonal phase appeared as a predominant phase with a little monoclinic modification after calcining the sample at 450 ℃ for 3 h.When further heating the sample at 750 ℃,pure monoclinic zirconia was obtained.

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Received 2007-11-15; published 2007-11-15

引用本文:

贾春瑶;马智;王延吉;.微乳液法制备高分散性纳米氧化锆[J]. 化学工业与工程, 2007,24(6): 471-475

JIA Chun-yao~.Preparation of Nanometer ZrO_2 with High Dispersibility by Microemulsion[J]. Chemcial Industry and Engineering, 2007,24(6): 471-475

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