Synthesis of ultrathin mesoporous NiCo2O4 nanosheets on carbon fiber paper as integrated high-performance electrodes for supercapacitors
Synthesis of ultrathin mesoporous NiCo2O4 nanosheets on carbon fiber paper as integrated high-performance electrodes for supercapacitors
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DOI：
10.1016/j.jpowsour.2013.11.048
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发表时间：
2014-04-01
影响因子：
9.2
通讯作者：
Li, Yongfeng
中科院分区：
文献类型：
--
作者：
Deng, Fangze;Yu, Lin;Li, Yongfeng
采用溶剂热法和后热处理相结合的方法在碳纤维纸（CFP）上制备了二维介孔NiCo 2 O 4纳米片。直接生长在碳纳米纤维上的互连良好的超薄NiCo 2 O 4纳米片可以使电解质轻松扩散，缩短离子和电子的传输路径并适应循环过程中的应变。其结果是，在20 A g（-1）的高电流密度下，实现了具有999 F g（-1）的大比电容的上级赝电容性能。在10A·g ~（-1）电流密度下循环3000次后，电容损失为15.6%，显示出良好的循环性能和高倍率性能。(C)2013爱思唯尔有限公司版权所有。
Two-dimensional ultrathin mesoporous NiCo2O4 nanosheets on carbon fiber paper (CFP) are synthesized through a facile solvothermal method combined with a post thermal treatment. The well interconnected ultrathin NiCo2O4 nanosheets directly grown on the carbon nanofibers could allow for easy diffusion of the electrolyte, shorten the transport path of ion and electron and accommodate the strain during cycling. As a result, superior pseudocapacitive performance is achieved with large specific capacitance of 999 F g(-1) at a high current density of 20 A g(-1). The capacitance loss is 15.6% after 3000 cycles at a current density of 10 A g(-1), displaying good cycle ability and high rate capability. (C) 2013 Elsevier B.V. All rights reserved.