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首页> 外文期刊>Journal of Materials Research >Conformal porous carbon coating on carbon fiber cloth/ NiS_2 composites by molecular layer deposition for durable supercapacitor electrodes
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Conformal porous carbon coating on carbon fiber cloth/ NiS_2 composites by molecular layer deposition for durable supercapacitor electrodes

机译：通过分子层沉积对耐用超级电容电极的分子层沉积对碳纤维布/ NIS_2复合材料的保形多孔碳涂层

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摘要

To solve the poor cyclability of faradic supercapacitors (SCs), the authors reported a unique porous carbon (PC) coating with "gap shell" structure on carbon fiber cloth (CFC)/NiS_2 materials. This gap shell PC coating was fabricated by combining atomic layer deposition (ALD) Al_2O_3 and molecular layer deposition alucone, followed by carbonization and etching. The as-prepared CFC/NiS_2/PC composites were directly used as binder-free electrodes for SCs. Benefited from its novel nanostructure, the CFC/NiS_2/PC electrode shows a large specific capacitance of 1034.6 F/g at 1 A/g and considerable rate capability of 67% capacitance, retaining ratio within 1-20 A/g. The cyclability of the CFC/NiS_2/PC electrode is enhanced by 50% relative to the mere CFC/NiS_2 after 2000 cycles, which is attributed to the gap and electrically conductive PC coating. Hence, this work provides a promising approach to design gap shell layer for improved cyclability of faradic SCs and other practical applications in energy storage electronics.
机译：为解决法拉克超级电容器（SCS）的差，作者报告了一种独特的多孔碳（PC）涂层，碳纤维布（CFC）/ NIS_2材料上具有“间隙壳”结构。通过组合原子层沉积（ALD）Al_2O_3和分子层沉积铝，然后进行碳化和蚀刻来制造该间隙壳PC涂层。作为SCS直接用作无粘合剂电极的制备的CFC / NIS_2 / PC复合材料。从其新颖的纳米结构中受益，CFC / NIS_2 / PC电极显示出1034.6 f / g的大的比电容为1 a / g，相当大的电容速率，保持比率在1-20 a / g内。在2000次循环之后，CFC / NIS_2 / PC电极的可循环性相对于Mere CFC / NIS_2增强了50％，其归因于间隙和导电PC涂层。因此，这项工作提供了一种有希望的方法来设计间隙壳层，以改善法拉克SCS和储能电子中的其他实际应用的可靠性。

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  • 来源
    《Journal of Materials Research》 |2020年第7期|738-746|共9页
  • 作者

    Jia-Bin Fang; Chang Liu; Yan-Qiang Cao; Ai-Dong Li;

  • 作者单位

    National Laboratory of Solid State Microstructures Materials Science and Engineering Department College of Engineering and Applied Sciences Collaborative Innovation Center of Advanced Microstructures Jiangsu Key Laboratory of Artificial Functional Materials Nanjing University Nanjing Jiangsu 210093 People's Republic of China;

    National Laboratory of Solid State Microstructures Materials Science and Engineering Department College of Engineering and Applied Sciences Collaborative Innovation Center of Advanced Microstructures Jiangsu Key Laboratory of Artificial Functional Materials Nanjing University Nanjing Jiangsu 210093 People's Republic of China;

    National Laboratory of Solid State Microstructures Materials Science and Engineering Department College of Engineering and Applied Sciences Collaborative Innovation Center of Advanced Microstructures Jiangsu Key Laboratory of Artificial Functional Materials Nanjing University Nanjing Jiangsu 210093 People's Republic of China and School of Science Nanjing University of Science and Technology Nanjing 210094 People's Republic of China;

    National Laboratory of Solid State Microstructures Materials Science and Engineering Department College of Engineering and Applied Sciences Collaborative Innovation Center of Advanced Microstructures Jiangsu Key Laboratory of Artificial Functional Materials Nanjing University Nanjing Jiangsu 210093 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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