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首页> 外文期刊>New Journal of Chemistry >Biomolecule-assisted synthesis of porous network-like Ni(3)S(2)nanoarchitectures assembled with ultrathin nanosheets as integrated negative electrodes for high-performance lithium storage
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Biomolecule-assisted synthesis of porous network-like Ni(3)S(2)nanoarchitectures assembled with ultrathin nanosheets as integrated negative electrodes for high-performance lithium storage

机译：生物分子辅助合成多孔网络状Ni（3）S（2）纳米建筑用超薄纳米片组装为高性能锂储存的集成负极

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摘要

Porous network-like Ni(3)S(2)nanoarchitectures have been successfully synthesized on nickel foamviaa facile eco-friendly biomolecule-assisted hydrothermal process, in whichl-cysteine serves as both a sulfur source and a directing molecule in the formation of Ni(3)S(2)nanoarchitectures. The possible formation mechanism of network-like Ni(3)S(2)nanostructures has been proposed on the basis of the experimental results. The unique three-dimensional network-like Ni3S2@NF nanoarchitectures can produce a synergistic effect for facilitating electron transport and ionic diffusion within the electrode, accommodating the volume expansion during cycling and leading to excellent electrochemical performance. The resulting binder-free Ni3S2@NF electrode delivers a high reversible specific capacity of 847.82 mA h g(-1)at a current density of 200 mA g(-1), which remains at 569.86 mA h g(-1)even after 300 cycles (a 67.21% retention of the second cycle), and excellent rate performance. This facile, environmentally benign and solution-phase biomolecule-assisted method can be potentially extended to the preparation of other novel porous chalcogenides with potential applications in the fields of hydrogen storage, high-energy batteries, supercapacitors, and catalysis.
机译：多孔网络状Ni（3）S（2）纳米体建筑已经成功地合成了镍泡沫状体环型生态型生物辅助生态辅助生态辅助生态辅助水热法，其中半胱氨酸用作硫源和硫源的形成，形成Ni（ 3）S（2）纳米建筑。在实验结果的基础上提出了网络状Ni（3）S（2）纳米结构的可能形成机制。独特的三维网络状Ni3S2 @ NF纳米建筑可以产生协同效应，以便于电极内的电子传输和离子扩散，以适应循环期间的体积膨胀，并导致优异的电化学性能。所得的无粘合剂Ni3 S 2 -NF电极在电流密度为200mA G（-1）的电流密度下提供高可逆的特定容量，即使在300次循环之后，仍保持在569.86 mA Hg（-1）处（保留第二个循环的67.21％），以及出色的速率性能。这种容纳，环境良性和解决方向生物分子辅助方法可以潜在地延伸到制备其他新型多孔硫族化合物，其具有耐储氢，高能量电池，超级电容器和催化领域的潜在应用。

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  • 来源
    《New Journal of Chemistry》 |2020年第34期|共10页
  • 作者

    Wang Bo; Li Yue; Liu Kun; Zhang Jinhui; Wu Xiaoyu;

  • 作者单位

    Tangshan Univ Dept Environm &

    Chem Engn Tangshan 063000 Peoples R China;

    Tangshan Univ Dept Environm &

    Chem Engn Tangshan 063000 Peoples R China;

    Tangshan Univ Dept Environm &

    Chem Engn Tangshan 063000 Peoples R China;

    Tangshan Univ Dept Environm &

    Chem Engn Tangshan 063000 Peoples R China;

    Southern Univ Sci &

    Technol SUSTech Dept Chem Shenzhen 518055 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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