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Low-temperature synthesis of nano-crystalline MgTi_2O_5 powders by aqueous Sol-Gel process

机译:水性溶胶-凝胶法低温合成纳米MgTi_2O_5纳米晶粉

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摘要

The pseudobrookite-structure MgTi_2O_5 was successfully synthesized by the aqueous sol-gel method using titanium dioxide and magnesium nitrate as starting materials instead of expensive organic solvent and metal alkoxides. The as-prepared nanopowders were characterized by X-ray diffraction (XRD), differential thermal analysis (DTA) and transmission electron microscope (TEM), respectively. The results showed that the calcinations process of gel consisted of a series of oxidation and combustion reactions, accompanied by significantly exothermal effects. Highly reactive nanosized magnesium titanate powders were successfully obtained at 650 ℃ with less than ~100 nm.
机译:以二氧化钛和硝酸镁为原料,代替昂贵的有机溶剂和金属醇盐,通过水溶胶-凝胶法成功合成了假板钛矿结构MgTi_2O_5。分别通过X射线衍射(XRD),差热分析(​​DTA)和透射电子显微镜(TEM)对制备的纳米粉进行表征。结果表明,凝胶的煅烧过程由一系列的氧化和燃烧反应组成,并伴随着明显的放热效应。在650℃〜100 nm范围内成功获得了高反应性的纳米钛酸镁粉。

著录项

  • 来源
    《Progress in functional materials》|2012年|177-180|共4页
  • 会议地点 Shanghai(CN)
  • 作者单位

    School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China;

    School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China;

    School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China;

    Navy Submarine Academy, Qingdao, Shandong, 266071, China;

    School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China;

    School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China;

    School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    MgTi_2O_5; Nanopowder Synthesis; Aqueous Sol-Gel Process;

    机译:MgTi_2O_5;纳米粉末合成;溶胶凝胶法;

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