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The synthesis of nano-fuzz W_2N layer using dense helium and nitrogen plasma

机译：用致密氦和氮等离子体合成纳米模糊W_2N层

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摘要

Owing to the direct activation of reactant species, plasma has been playing a role in material synthesis and surface modification since the mid-1970s, especially for the production of nanomaterials. Tungsten nitride with nanostructures has attracted much attention for applications in catalysis and electrocatalysis, due to their noble metal-like properties. In this work, we propose a two-step strategy to prepare tungsten nitride (W2N) layer simply from tungsten sample by means of dense helium and nitrogen plasma treatment. Various surface characterization and cross-section analysis methods have confirmed the formation of W2N nano fuzz structure. After a sequential exposure to helium plasma for 20 minutes and nitrogen plasma for 30 minutes, corresponding to the ion fluence of 8.4 x 10(25) m(-2) and 2.3 x 10(26) m(-2) respectively, a nano-fuzzy layer with thickness of -700 nm has been formed on tungsten surface and the core-shell structured W-2 N/W nano fibers are around 40 nm in diameter. The synthesis of nanostructured W2N via plasma environment has not only broadened the application of plasma methods, but also offers a facile and universal way for the design of materials with different morphologies and properties.
机译：由于反应物种的直接活化，自20世纪70年代中期以来，血浆一直在物质合成和表面改性中发挥作用，特别是对于生产纳米材料。由于其贵金属的金属状特性，纳米结构氮化纳氮化纳氮化物对催化和电常分的应用引起了许多关注。在这项工作中，我们提出了一种通过致密氦和氮等离子体处理来制备钨样品的两步策略来制备氮化根氮化物（W2N）层。各种表面表征和横截面分析方法已经证实了W2N纳米模糊结构的形成。在连续暴露于氦血浆后20分钟，氮血浆30分钟，对应于分别为8.4×10（25）m（-2）和2.3×10（26）m（-2）的离子电量，纳米在钨表面上形成厚度为-700nm的布料层，并且芯壳结构的W-2 N / W纳米纤维直径约为40nm。通过等离子体环境合成纳米结构W2N的合成不仅扩大了等离子体方法的应用，而且还为具有不同形态和性质的材料设计提供了一种容易和通用的方式。

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  • 来源
    《Thin Solid Films》 |2021年第1期|138445.1-138445.6|共6页
  • 作者

    Wang Zhijun; Yang Chi; He Pingni; Zhu Jie; Zhang Qian; Zhao Peng; Mao Xinchun; Gou Fujun; Zhang Kun;

  • 作者单位

    Chengdu Univ Inst Adv Study 2025 Chengluo Ave Chengdu 610106 Peoples R China;

    Chengdu Univ Inst Adv Study 2025 Chengluo Ave Chengdu 610106 Peoples R China;

    Sichuan Univ Inst Nucl Sci & Technol 24 1st Ring Rd Chengdu 610064 Peoples R China;

    Chengdu Univ Inst Adv Study 2025 Chengluo Ave Chengdu 610106 Peoples R China;

    Chengdu Univ Inst Adv Study 2025 Chengluo Ave Chengdu 610106 Peoples R China;

    Chengdu Univ Inst Adv Study 2025 Chengluo Ave Chengdu 610106 Peoples R China;

    China Acad Engn Phys Inst Mat Jiangyou 621908 Peoples R China;

    Chengdu Univ Inst Adv Study 2025 Chengluo Ave Chengdu 610106 Peoples R China|Sichuan Univ Inst Nucl Sci & Technol 24 1st Ring Rd Chengdu 610064 Peoples R China;

    Chengdu Univ Inst Adv Study 2025 Chengluo Ave Chengdu 610106 Peoples R China|Sichuan Univ Inst Nucl Sci & Technol 24 1st Ring Rd Chengdu 610064 Peoples R China;

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

    Plasma synthesis; Tungsten nitride; Thin layer; Nano-fuzz structure;

    机译：血浆合成;钨氮化物;薄层;纳米绒毛结构;

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