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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Synthesis of ultra-small gold nanoparticles decorated onto NiO nanobelts and their high electrochemical performance
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Synthesis of ultra-small gold nanoparticles decorated onto NiO nanobelts and their high electrochemical performance

机译：以高纳米纳米螺纹装饰的超小金纳米粒子的合成及其高电化学性能

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摘要

Herein, ultra-small gold nanoparticles are decorated onto NiO nanobelts using HAuCl4 and Ni(OH)(2) nanobelts as precursors via a one-step thermal treatment, and a temperature of 500 degrees C is used for the decomposition of both precursors at the same time; the amount of gold nanoparticles in the electrode materials ranges from 0 to 17.38 wt%; moreover, the effect of the gold content on the structure and electrochemical performance has been investigated. The results show that the fabricated materials achieve a high specific capacitance of 597 F g(-1) with a Au content of 1.54 wt%, and the Au grain size is about 12.0 nm. An asymmetric supercapacitor device was assembled using gold nanoparticle/NiO as the positive electrode and activated carbon as the negative electrode, which exhibited a maximum energy density of 18.0 W h kg(-1) and an excellent cycle life, retaining 84% of the initial specific capacitance after 22000 cycles.
机译：在此，使用Haucl4和Ni（OH）（2）纳米核作为前体通过一步热处理装饰到NiO纳米核上，500℃的温度用于两种前体的分解 同时; 电极材料中的金纳米颗粒的量范围为0至17.38wt％; 此外，研究了金含量对结构和电化学性能的影响。 结果表明，制造的材料实现了597V（-1）的高比电容，Au含量为1.54wt％，Au粒径为约12.0nm。 使用金纳米粒子/ NiO作为正极和活性炭作为负电极组装不对称的超级电容器装置，其具有18.0Wh kg（-1）的最大能量密度和优异的循环寿命，保持84％的初始 22000周期后的特定电容。

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    Tan Yongtao; Li Yuan; Kong Lingbin; Kang Long; Ran Fen;

  • 作者单位

    Lanzhou Univ Technol State Key Lab Adv Proc &

    Recycling Nonferrous Met Lanzhou 730050 Gansu Peoples R China;

    Lanzhou Univ Technol Sch Mat Sci &

    Engn Lanzhou 730050 Gansu Peoples R China;

    Lanzhou Univ Technol State Key Lab Adv Proc &

    Recycling Nonferrous Met Lanzhou 730050 Gansu Peoples R China;

    Lanzhou Univ Technol State Key Lab Adv Proc &

    Recycling Nonferrous Met Lanzhou 730050 Gansu Peoples R China;

    Lanzhou Univ Technol State Key Lab Adv Proc &

    Recycling Nonferrous Met Lanzhou 730050 Gansu Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;无机化学;
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