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首页> 外文期刊>Journal of Materials Research >Amorphous FeOOH quantum dots decorated on g-C_3N_4 nanosheets for high-performance energy storage electrodes
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Amorphous FeOOH quantum dots decorated on g-C_3N_4 nanosheets for high-performance energy storage electrodes

机译：用于高性能储能电极的G-C_3N_4 NanosheS上装饰的无定形FeOOH量子点

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摘要

Quantum dots (QDs) have recently attracted intensive attention for electrode materials due to their tunable physical dimensions, unique surface effect and pseudocapacitive property. Nevertheless, direct employment of QDs as electrode materials are plagued because of their intrinsic aggregation. In this work, we have successfully fabricated amorphous FeOOH QDs and FeOOH/g-C_3N_4 hybrid nanosheets as electrode materials using a scalable and bottom-up synthesis route. The FeOOH/g-C_3N_4 composite possesses a unique heterostructure, comprising a highly dispersed FeOOH QDs anchored on g-C_3N_4 nanosheets. We probe the behavior of as-prepared hybrid sample, which collectively delivers significant improvement in terms of ultrahigh specific capacitance and long-term stability. The FeOOH/g-C_3N_4-20 electrode exhibits a large specific capacitance of about 270.8 F g~(-1) at 1 A g~(-1) prominent rate capability at high scan rates, and favorable capacitance retention (78.3％ capacitance retention after 3000 cycles).
机译：Quantum Dots（QDS）最近引起了电极材料的强烈关注，因为它们的可调谐物理尺寸，独特的表面效应和假胶质容貌。然而，由于其内在聚集，QDS的直接就业QDS是困扰。在这项工作中，我们已经成功地制造无定形的FeOOH的QD和的FeOOH /克 - C_3N_4混合纳米片作为使用可扩展性和自底向上的合成路线的电极材料。 FeOOH / G-C_3N_4复合材料具有独特的异质结构，包括在G-C_3N_4纳米片上锚定的高度分散的FeOOH QD。我们探讨了制备的混合样品的行为，该样本共同提供了超高特定电容和长期稳定性的显着改进。 FEOOH / G-C_3N_4-20电极在高扫描速率下以1A的G〜（-1）突出的速率能力为大约270.8f g〜（-1）电极，良好的电容保持（78.3％电容保留3000个循环后）。

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  • 来源
    《Journal of Materials Research》 |2021年第3期|677-687|共11页
  • 作者

    Run Zheng; Fang Lu; Hongzhou Yang; Yanmin Gao;

  • 作者单位

    College of Materials Science and Engineering Jiangsu University of Science and Technology Zhenjiang 212003 Jiangsu People's Republic of China;

    College of Materials Science and Engineering Jiangsu University of Science and Technology Zhenjiang 212003 Jiangsu People's Republic of China;

    College of Materials Science and Engineering Jiangsu University of Science and Technology Zhenjiang 212003 Jiangsu People's Republic of China;

    College of Materials Science and Engineering Jiangsu University of Science and Technology Zhenjiang 212003 Jiangsu People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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