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Shape control of highly crystallized titania nanorods based on formation mechanism

机译:基于形成机理的高度结晶二氧化钛纳米棒的形状控制

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摘要

A strategic scheme for controlling the shape of titania nanorods while maintaining their highly crystallized state was investigated in terms of the effects of reactant concentration and temperature change on the formation mechanism. Lowering the temperature from 433 to 413 K markedly slowed down the reaction rate and resulted in the coexistence of amorphous-like films and crystalline titania nanorods due to the concurrence of nucleation out of the amorphous phase and particle growth by crystallization. Based on these findings, a strategy for shape control was proposed and long, high aspect ratio titania nanorods in a highly crystallized state were successfully synthesized.
机译:根据反应物浓度和温度变化对形成机理的影响,研究了控制二氧化钛纳米棒形状同时保持其高度结晶状态的策略方案。将温度从433 K降低到413 K显着减慢了反应速率,并导致了类似非晶态膜和结晶二氧化钛纳米棒的共存,这是由于存在从非晶态相析出的核以及结晶导致的颗粒生长。基于这些发现,提出了一种形状控制策略,并成功地合成了长,高纵横比的高度结晶态的二氧化钛纳米棒。

著录项

  • 来源
    《Journal of Materials Research》 |2012年第2期|p.440-447|共8页
  • 作者单位

    Department of Chemical Engineering and Materials Science, Doshisha University, Kyotanabe 610-0321, Japan and Fuji Chemical Co., Ltd., Hirakata 573-0003, Japan;

    Department of Chemical Engineering and Materials Science, Doshisha University, Kyotanabe 610-0321, Japan;

    Department of Chemical Engineering and Materials Science, Doshisha University, Kyotanabe 610-0321, Japan;

    National Institute of Biomedical Innovation, Ibaraki 567-0085, Japan;

    Department of Chemical Engineering and Materials Science, Doshisha University, Kyotanabe 610-0321, Japan;

    Department of Chemical Engineering and Materials Science, Doshisha University, Kyotanabe 610-0321, Japan;

    Fuji Chemical Co., Ltd., Hirakata 573-0003, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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