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Metallic 1T-WS2 nanoribbons as highly conductive electrodes for supercapacitors

机译：金属1T-WS2纳米纳米作为超级电容器的高导电电极

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摘要

Layered tungsten disulfide (WS2) has attracted great attention because of its high potential for electrochemical energy applications. However, the semiconducting nature of WS2 with a 2H phase largely hinders its electrochemical performance due to poor electronic conductivity. In this study, we have successfully synthesized a metallic 1T-WS2 nano-ribbon with stable ammonia-ion intercalation as a highly conductive electrode for high-performance supercapacitors. The specific capacitance using the metallic 1T-WS2 electrode exhibits significant enhancement upto the value of 2813 mu F cm(-2). This value is 12 times higher compared to semiconducting 2H-WS2. Moreover, the 1T-WS2 electrode has good stability even under high current scans, which is ascribed to the stable ammonia-ion interaction. The correlation between the 1T-WS2 structure and its electrochemical performance has also been discussed.
机译：由于电化学能源应用的高潜力，分层钨二硫化物（WS2）引起了极大的关注。 然而，WS2的半导体性质具有2H相的主要是由于电子电导率差而导致其电化学性能。 在该研究中，我们已经成功地合成了金属1T-WS2纳米带，其具有稳定的氨离子嵌入作为高性能超级电容器的高导电电极。 使用金属1T-WS2电极的特定电容表现出显着的增强率为2813μFCm（-2）的值。 与半导体2H-WS2相比，该值越高12倍。 此外，即使在高电流扫描下，1T-WS2电极具有良好的稳定性，其归因于稳定的氨离子相互作用。 还讨论了1T-WS2结构与其电化学性能之间的相关性。

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  • 来源
    《RSC Advances》 |2016年第54期|共4页
  • 作者

    Khalil Adnan; Liu Qin; He Qun; Xiang Ting; Liu Daobin; Wang Changda; Fang Qi; Song Li;

  • 作者单位

    Univ Sci &

    Technol China CAS Ctr Excellence Nanosci Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China CAS Ctr Excellence Nanosci Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China CAS Ctr Excellence Nanosci Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China CAS Ctr Excellence Nanosci Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China CAS Ctr Excellence Nanosci Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China CAS Ctr Excellence Nanosci Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China CAS Ctr Excellence Nanosci Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China CAS Ctr Excellence Nanosci Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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