The NiCo2O4 nanosheets uniformly grown on the Ni foam (CF)(NiCo2O4/NF) were successfully fabricated by a hydrothermal method,followed by the calcination process.The compositions,morphologies and electrochemical performance of NiCo2O4/NF were demonstrated by XRD,SEM,N2 adsorption/desorption measurements,and electrochemical measurements.The results suggested that the NiCo2O4 nanosheets uniformly grown on the NF,and NiCo2O4 nanosheets had the good electrochemical performance.For example,the specific capacitance value of NiCo2O4/NF was up to 1102F/g and the after a 4000-cycle test at a current density of 10A/g,the retention capacitance value was about 88.7%.In addition,an ASC was assembled using NiCo2O4/NF as the positive electrode and activated carbon (AC) as the negative electrode,which shown a high energy density and remarkable cycling performance.
Bai Renliu, Zhen Deshuai, Wu Dawang, Zhang Yuehong, Wen Zhigang, Zhang Jie, Zou Hongtao, Tong Yexiang
. Study on fabrication and performance of NiCo2O4/NF electrode material as supercapacitor[J]. New Chemical Materials, 2020
, 48(10)
: 73
-77
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.10.016
[1] Yu X Y, Yao X Z.T, Facile synthesis of urchin-like NiCo2O4 hollow microspheres with enhanced electrochemical properties in energy and environmentally relate application[J].ACS Applied Materials & Interfaces, 2014, 6:268995-269036.
[2] Zhang C Q, Lou X W.General solution growth of mesoporous NiCo2O4 nanosheets on various conductive substrates as high performance electrodes for supercapacitors[J].Advanced Materials, 2013, 25:976-979.
[3] Gang J D, Zhou H M.Ultrathin porous NiCo2O4 Nanosheets arrays on flxible carbon fabric for high performances supercapacitors[J].ACS Applied Materials & Interfaces, 2013, 5:7405-7409.
[4] Liu X Y, Shi S J, Xing Q Q.Hierarchial NiC2O4@NiCo2O4 core/shell nanoflake arrays as high performances supercapacitor materials[J].ACS Applied Materials & Interfaces, 2013, 5:8790-8795.
[5] Zhang C, Shen X Q.Preparation of spinel NiFe2O4 fibres by organicgel-thermal decompostion process[J].Journal of Sol-Gel Science and Technology, 2007, 42:95-100.
[6] Li C, Balamurugan J, Kim N H, et al.Hierarchical Zn-Co-S nanowires as advanced electrodes for all solid state asymmetric supercapacitors[J].Advanced Energy Materials, 2018, 8(8):1702014.
[7] Moosavifard S E, Fani S, Rahmanian M.Hierarchical CuCo2S4 hollow nanoneedle arrays as novel binder-freeelectrodes for high-performance asymmetric supercapacitors[J].Chemical Communications, 2016, 52(24):4517-4520.