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Polyoxometalates Facilitating Synthesis of Subnanometer Nanowires

机译：促进亚料仪纳米线合成的多血清液

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摘要

Subnanometer nanowires (SNWs) refer to nanowires with diameters close to the size of a single crystal cell. SNWs show not only qualitative change in nature compared to the bulk materials or nanomaterials with larger size but also show several advantages in assembly and processing due to their polymer-analog properties. However, the synthesis of SNWs is still a great challenge. Herein, a synthesis method of SNWs assisted by polyoxometalates is developed. Based on this method, several kinds of SNWs are prepared successfully, and the properties of the SNWs can be regulated efficiently and effectively, demonstrating the extensibility of this synthesis method. Among these SNWs, Bi2O3-PMoO SNWs show good photothermal conversion performance and can be processed into freestanding and flexible films through the wet-spinning method. The Bi2O3-PMoO SNW films show good performance in solar steam generation and seawater desalination. The average stable evaporation rate can reach 1.38 kg m(-2) h(-1), and the efficiency is approximate to 91.1% under 1 sun illumination. The concentration of ions in the desalted seawater with the Bi2O3-PMoO SNWs film are reduced by four orders of magnitude, meeting the quality standards of drinking water and potential for practical utilization of solar energy in the seawater desalination.
机译：亚腔轮纳米线（SNW）是指直径靠近单晶电池尺寸的直径的纳米线。与具有较大尺寸的散装材料或纳米材料相比，SNW不仅具有定性变化，而且由于它们的聚合物 - 模拟性能，还显示了组装和加工的几个优点。然而，SNW的合成仍然是一个巨大的挑战。在此，开发了通过多氧酸盐辅助的SNW的合成方法。基于该方法，成功制备了几种SNW，并且可以有效且有效地调节SNW的性质，证明了该合成方法的可伸展性。在这些SNW中，Bi2O3-PMOOS SNWS显示出良好的光热转换性能，并且可以通过湿纺丝方法加工成独立和柔性薄膜。 Bi2O3-PMoo SNW薄膜在太阳能蒸汽发电和海水淡化方面表现出良好的性能。平均稳定蒸发速率可达到1.38千克（-2）H（-1），效率在1次太阳照明下近似为91.1％。脱盐海水中离子浓度与Bi2O3-PMOO SNWS薄膜减少了四个数量级，满足饮用水质量标准以及海水淡化中太阳能的实际利用潜力。

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  • 来源
    《Advanced Functional Materials》 |2021年第20期|2100703.1-2100703.7|共7页
  • 作者

    Zhang Simin; Lu Qichen; Yu Biao; Cheng Xijun; Zhuang Jing; Wang Xun;

  • 作者单位

    Tsinghua Univ Dept Chem Key Lab Organ Optoelect & Mol Engn Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Chem Key Lab Organ Optoelect & Mol Engn Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Chem Key Lab Organ Optoelect & Mol Engn Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Chem Key Lab Organ Optoelect & Mol Engn Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Chem Key Lab Organ Optoelect & Mol Engn Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Chem Key Lab Organ Optoelect & Mol Engn Beijing 100084 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    photothermal; polyoxometalates; subnanometer nanowires;

    机译：光热;多氧化合物;亚腔计纳米线;

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