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Silica-Mediated Formation of Nickel Sulfide Nanosheets on CNT Films for Versatile Energy Storage
Lu, Pengyi; Wang, Xiaowei; Wen, Lei; Jiang, Xiaotong; Guo, Wenlei; Wang, Lei; Yan, Xiao; Hou, Feng; Liang, Ji; Cheng, Hui-Ming; Dou, Shi Xue
2019-04-01
Source PublicationSMALL
ISSN1613-6810
Volume15Issue:15
AbstractAn effective, nondestructive, and universal strategy to homogeneously modify freestanding carbon nanotube (CNT) films with various active species is essential to achieve functional electrodes for flexible electrochemical energy storage, which is challenging and has attracted considerable research interest. In this work, a generalizable concept, to utilize silicon oxide as the intermediate to uniformly decorate various metal sulfide nanostructures throughout CNT films is reported. Taking nickel sulfide nanosheet/CNT (NS/CNT) films, in which the NS nanosheets are homogeneously attached on the intact few-walled CNTs, as an example, the sheet-like NS provides sufficient active sites for redox reactions and the CNT network acts as an efficient electron highway, maintaining the structural integrity of the composite and also buffering volume changes. These merits enable NS/CNT films to meet the requirements of versatile energy storage applications. When used for supercapacitors, a high specific capacitance (2699.7 F g(-1)/10 A g(-1)), outstanding rate performance at extremely high rates (1527 F g(-1)/250 A g(-1)), remarkable cycling stability, and excellent flexibility can be achieved, among the best performance so far. Moreover, it also delivers excellent performance in the storage of Li and Na ions, meaning it is also potentially suitable for Li/Na ion batteries.
Keywordcarbon nanotubes lithium-ion storage metal sulfide nanosheets sodium-ion storage supercapacitors
Indexed BySCI
Language英语
WOS IDWOS:000467418900010
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81213
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Lu, Pengyi,Wang, Xiaowei,Wen, Lei,et al. Silica-Mediated Formation of Nickel Sulfide Nanosheets on CNT Films for Versatile Energy Storage[J]. SMALL,2019,15(15).
APA Lu, Pengyi.,Wang, Xiaowei.,Wen, Lei.,Jiang, Xiaotong.,Guo, Wenlei.,...&Dou, Shi Xue.(2019).Silica-Mediated Formation of Nickel Sulfide Nanosheets on CNT Films for Versatile Energy Storage.SMALL,15(15).
MLA Lu, Pengyi,et al."Silica-Mediated Formation of Nickel Sulfide Nanosheets on CNT Films for Versatile Energy Storage".SMALL 15.15(2019).
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