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首页> 外文期刊>Journal of Materials Research >Modulation of stoichiometry, morphology and composition of transition metal oxide nanostructures through hot wire chemical vapor deposition
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Modulation of stoichiometry, morphology and composition of transition metal oxide nanostructures through hot wire chemical vapor deposition

机译：通过热线化学气相沉积调节过渡金属氧化物纳米结构的化学计量，形态和组成

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摘要

A hot wire chemical vapor deposition technique is described for synthesis of ID nanostructures of a controlled morphology, stoichiometry, and composition. The synthesis involves the evaporation and condensation of metal oxide vapor through the reaction of oxygen with the hot filaments of respective transition metals. The stoichiometry and morphology of MoO_3 and WO_3 were modulated by varying the filament temperature and partial pressure of oxygen in the growth chamber. Based on the results under different conditions, a morphological phase diagram, and a growth model based on the extent of gas phase supersaturation were developed to understand the growth mechanism. Further, ternary transition metal oxide, NiMoO_4, was synthesized as a proof-of-concept for tuning the composition of deposition through simultaneous evaporation of two metal oxides.
机译：描述了一种热线化学气相沉积技术，用于合成具有受控形态，化学计量和组成的ID纳米结构。该合成涉及通过氧与各个过渡金属的热丝的反应而蒸发和冷凝金属氧化物蒸气。通过改变生长室内的灯丝温度和氧气分压来调节MoO_3和WO_3的化学计量和形态。根据不同条件下的结果，开发了形态相图和基于气相过饱和程度的生长模型，以了解其生长机理。此外，合成了三元过渡金属氧化物NiMoO_4作为概念证明，用于通过同时蒸发两种金属氧化物来调节沉积物的组成。

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  • 来源
    《Journal of Materials Research》 |2016年第1期|17-27|共11页
  • 作者

    Vidhya Chakrapani; Matthew Brier; Ajinkya Puntambekar; Thomas DiGiovanni;

  • 作者单位

    Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, USA and Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA;

    Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, USA;

    Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, USA;

    Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, USA;

  • 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
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