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非水体系模板法合成新颖形貌氮化硅基材料 被引量：3

Template Assisted Synthesis of Silicon Nitride-based Materials with Novel Morphologies in Nonaqueous System
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摘要 以乙腈为溶剂,十八胺为模板剂通过非氧化物溶胶-凝胶过程合成了新颖形貌的氮化硅基材料.通过X射线衍射(XRD),透射电子显微镜(TEM),扫描电子显微镜(SEM),N2吸附-脱附和电子能谱(EDS)对样品进行了表征.结果显示,材料呈现出由薄膜组成的花瓣状和树叶状新颖形貌,且具有很高的比表面积和孔径分布很窄的纳米孔,同时证明了在非水体系中表面活性剂也存在自组装现象,从而可以作为模板剂来合成具有特殊介观结构和形貌的材料. Novel mesostructured silicon nitride-based materials were synthesized for the first time by usmg acetonitrile as the solvent and octadecylamine as the template in the non-oxide sol-gel process. The synthesized samples were characterized by XRD, TEM, SEM, N2 adsorption-desorption isotherm and energy dispersive spectroscopy. Characterization results indicate that these materials are flower-like and leaf-like thin film materials with high surface area and nanoporosity of narrow distribution in pore size. This study also suggests capable self-assembly of some surfactants into association in non-aqueous media, which has potential application to template the synthesis of materials with novelty in structures and morphologies. The formation mechanism of materials was preliminarily discussed.
作者 曹洁明 马贤佳 陆红霞 侯海涛 徐国跃
机构地区 南京航空航天大学材料科学与技术学院纳米材料研究所
出处 《化学学报》 SCIE CAS CSCD 北大核心 2005年第17期1638-1640,F0008,共4页 Acta Chimica Sinica
关键词 非氧化物溶胶凝胶 自组装 氮化硅基材料 形貌 模板法合成 硅基材料 非水体系 氮化 溶胶-凝胶过程 透射电子显微镜 non-oxide sol-gel self-assembly silicon nitride-based material morphology
分类号 TQ127.2 [化学工程—无机化工]
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参考文献20

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同被引文献19

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  • 9Yoshitake H, Sugihara T, Tatusmi T. Preparation of wormhole-like mesoporous TiO2 with an extremely large surface area and stabilization of its surface by chemical vapor deposition [J].Chem Mater, 2002, 14 (3) :1023 - 1029.
  • 10Liu Y, Li Y, Wang YT, et al. Sonochemical synthesis and photocatalytic activity of meso-and macro-porous TiO2 for oxidation of toluene[J]. J Hazard Mater,2008,150(1):153 -157.

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化学学报
2005年 第17期

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