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首页> 外文期刊>Science of advanced materials >Fabrication, Characterization and Hydrogen Sorption Properties of Stannous Oxide Nano-Flowers
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Fabrication, Characterization and Hydrogen Sorption Properties of Stannous Oxide Nano-Flowers

机译：氧化亚锡纳米花的制备，表征和吸氢性能

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摘要

Stannous oxide has been regarded as a promising functional semiconductor material which presents a vital role in optoelectronic and energy storage devices. In the present research, the single crystalline self-assembled tin monoxide (SnO) 3D novel nano-flowers have been synthesized with template/catalyst-free hydrothermal growth technique. The morphology, composition and structure were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM) with selected area electron diffraction (SAED), energy dispersive X-ray (EDX) analysis, X-ray diffraction (XRD) and Raman spectroscopy, respectively. FESEM results have illustrated that the self-assembled 3D flower-shape structures of SnO is in the range of 8～12μm and the average size of the nano-square sheets is about 100 nm. X-ray diffraction (XRD) and selected area electron diffraction (SAED) patterns revealed that the prepared SnO nano-square sheets exist in single-crystalline nature. The dominant Raman active modes A_(1g) = 205 cm~(-1), B_(1g) = 107 cm~(-1) and about 6 cm~(-1) redshift in comparison with bulk spectra were observed by the Raman spectroscopy, which are good agreement with the nano tetragonal phase SnO. Furthermore, the hydrogen absorption characteristics of romarchite SnO nanoflowers, investigated at 373 K, shows good absorption capacity of 1.48 wt.%. Moreover, the kinetics of absorption is analyzed qualitatively with respect to the rate-limiting procedures by applying the various kinetic models.
机译：氧化亚锡被认为是有前途的功能半导体材料，在光电和能量存储设备中发挥着至关重要的作用。在本研究中，已经通过无模板/无催化剂水热生长技术合成了单晶自组装一氧化锡（SnO）3D新型纳米花。通过场发射扫描电子显微镜（FESEM），透射电子显微镜（TEM），具有选择区域电子衍射（SAED）的高分辨率透射电子显微镜（HRTEM），能量色散X射线（EDX）表征了形态，组成和结构。分析，X射线衍射（XRD）和拉曼光谱。 FESEM结果表明，SnO的自组装3D花形结构在8〜12μm范围内，纳米方片的平均尺寸约为100 nm。 X射线衍射（XRD）和选择区域电子衍射（SAED）图谱表明，所制备的SnO纳米方片以单晶形式存在。拉曼光谱观察到主要的拉曼活性模式A_（1g）= 205 cm〜（-1），B_（1g）= 107 cm〜（-1）和与体光谱相比约有6 cm〜（-1）的红移。光谱学，与纳米四方相SnO吻合良好。此外，在373 K下研究的铬铁矿SnO纳米花的氢吸收特性显示出1.48 wt。％的良好吸收能力。此外，通过应用各种动力学模型，针对限速程序对吸收动力学进行了定性分析。

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  • 来源
    《Science of advanced materials》 |2013年第7期|758-763|共6页
  • 作者

    M. Zubair Iqbal; Fengping Wang; M. Yasir Rafique; Rafi Ud Din; Faheem K. Butt; Shujaat AM; M. Ammar Khan; Qurat ul Ain Javed; Arbab Tofeeq;

  • 作者单位

    Department of Physics, School of Applied Science, University of Science and Technology Beijing,Beijing 100083, P. R. China;

    Department of Physics, School of Applied Science, University of Science and Technology Beijing,Beijing 100083, P. R. China;

    Department of Physics, School of Applied Science, University of Science and Technology Beijing,Beijing 100083, P. R. China;

    Chemistry Division, PINSTECH, P.O. Box Nilore, Islamabad, Pakistan;

    Center of Materials Science, Beijing Institute of Technology, Beijing 100081, P. R. China;

    Department of Physics, School of Applied Science, University of Science and Technology Beijing,Beijing 100083, P. R. China;

    School of Physical Electronics, University of Electronic Science and Technology of China, 610054, P. R. China;

    Department of Physics, School of Applied Science, University of Science and Technology Beijing,Beijing 100083, P. R. China;

    Department of Physics, School of Applied Science, University of Science and Technology Beijing,Beijing 100083, P. R. China;

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  • 正文语种 eng
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  • 关键词

    Nanostructured Materials; Hydrothermal Method; Raman Spectroscopy; Hydrogen Storage;

    机译：纳米结构材料;水热法拉曼光谱储氢;

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