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A Simple Method For The Synthesis Of Tungsten Trioxide Nanorods Array Without Catalyst

Author

Listed:
  • JULAN ZHANG

    (Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China)

  • GENGMIN ZHANG

    (Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China)

  • DENGZHU GUO

    (Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China)

  • YUE WU

    (Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China)

  • ZHONGHE XI

    (Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China)

Abstract

Arrays of tungsten oxide nanorods, approximately 500 nm in diameter and 10 μm in length, have been grown in a catalyst-free reaction by heating tungsten wires at 900°C in a humid argon flow. They were systematically characterized using different surface analysis techniques. The chemical composition was determined to be stable stoichiometric binary oxide monoclinic tungsten trioxide. Water vapor was found to be crucial for the formation of theseWO3nanorods. The vapor–solid (VS) process was introduced to discuss the growth mechanism.

Suggested Citation

  • Julan Zhang & Gengmin Zhang & Dengzhu Guo & Yue Wu & Zhonghe Xi, 2007. "A Simple Method For The Synthesis Of Tungsten Trioxide Nanorods Array Without Catalyst," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 14(04), pages 607-610.
    • Handle: RePEc:wsi:srlxxx:v:14:y:2007:i:04:n:s0218625x07009761
    DOI: 10.1142/S0218625X07009761
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    Keywords

    Low dimensional structures; oxides;

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