| 特殊形貌SrCO_3粒子的简易合成 |
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| 引用本文： | 齐利民,席凯,马季铭. 特殊形貌SrCO_3粒子的简易合成[J]. 化学学报, 2003, 0(1) |
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| 作者姓名： | 齐利民 席凯 马季铭 |
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| 作者单位： | 北京大学化学学院，分子动态与稳态结构国家重点实验室，北京大学化学学院，分子动态与稳态结构国家重点实验室，北京大学化学学院，分子动态与稳态结构国家重点实验室 北京100871，北京100871，北京100871 |
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| 基金项目： | 国家自然科学基金(Nos.2 0 0 0 30 0 1,2 0 2 330 1 0 )，教育部优秀博士论文作者专项资金(No.2 0 0 0 2 0 )，留学回国启动基金资助项目 |
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| 摘 要： | 在纯水介质中通过简单调节SrCO3浓度合成出了均一的橄榄状SrCO3粒子和由针状SrCO3粒子向两端辐射而成的束状聚集体.聚甲基丙烯酸钠(PMAA)的存在有着使SrCO3粒子形貌由束状聚集体逐渐变得两端钝化且膨胀的趋势,在适当条件下可得到较为均一的花生状、球状和树枝状SrCO3粒子
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| 关 键 词： | SrCO3 仿生合成 形貌调控 |
Facile Synthesis of SrCO_3 Particles with Unusual Morphologies |
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| Abstract: | The crystallization of SrCO_3 particles from aqueous solutions in the absence and presence of a polyanionic additive has been investigated. Olive-like SrCO_3 particles and bundle-like aggregates consisting of SrCO_3 needles aligned radially toward both ends are synthesized in aqueous solutions by simply varying the SrCO_3 concentration. Both ends of the bundle-like aggregates of SrCO_3 needles tend to become rounded and extended in the presence of poly~(methacrylic acid) (PMAA); accordingly, uniform peanut-like, spherical and dendritic SrCO_3 particles can be prepared in suitable conditions, respectively. |
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| Keywords: | SrCO_3 biomimetic synthesis morphological control |
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