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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (5): 470-474. 上一篇    

研究简报

(Ba, Sr)TiO3纳米棒的反相微乳法制备与表征

朱启安*, 陈万平, 宋方平, 王树峰   

  1. (湘潭大学化学学院 湘潭 411105)
  • 投稿日期:2006-07-14 修回日期:2006-08-11 发布日期:2007-03-14
  • 通讯作者: 朱启安

Preparation and Characterization of (Ba, Sr)TiO3 Nanorods by Reverse Microemulsion Method

ZHU Qi-An*; CHEN Wan-Ping; SONG Fang-Ping; WANG Shu-Feng   

  1. (College of Chemistry, Xiangtan University, Xiangtan 411105)
  • Received:2006-07-14 Revised:2006-08-11 Published:2007-03-14
  • Contact: ZHU Qi-An

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在氢氧化钡和氢氧化锶水溶液/Triton X-100/环己烷/正己醇四元W/O型反相微乳液中制备了钛酸锶钡纳米棒, 研究了ω0值(水与表面活性剂Triton X-100的物质的量之比)、反应物浓度、陈化时间对产品形貌和尺寸的影响, 用TEM, SAED, SEM, EDS和XRD等技术对产品进行了表征. 结果表明, 所得Ba0.7Sr0.3TiO3纳米棒长约500～1200 nm、直径约为50～120 nm; 具有立方相单晶结构. 产品中钡、锶、钛的物质的量之比约为0.7∶0.3∶1.

关键词: 钛酸锶钡, 反相微乳法, 纳米棒

Barium strontium titanate nanorods were synthesized in quaternary water/oil (W/O) microemulsion solution containing Triton X-100, cyclohexane, n-hexanol and water with Ba(OH)2 and Sr(OH)2 as reactants. The effects of different conditions such as ω0 (the molar ratio of water to surfactant Triton X-100), reactant concentration and the aging time on the morphology and the size of the products were studied. The obtained products were characterized by TEM, SAED, SEM, EDS and XRD techniques. The results show that the prepared Ba0.7Sr0.3TiO3 nanorods belonging to cubic phase are a single crystal structure with a length of 500～1200 nm and a diameter of 50～120 nm. The molar ratio of barium, strontium and titanate of products is about 0.7∶0.3∶1.

Key words: barium strontium titanate, reverse microemulsion method, nanorod