Synthesis and Pseudocapacitive Performance of Ordered Mesoporous NiCo2O4 Nanowires

Qiyue Wang, College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China
2018 International Journal of Electrochemical Science  
Ordered mesoporous NiCo 2 O 4 nanowires electrodes were prepared using SBA-15 as template through a hydrothermal impregnation method. X-ray diffraction, nitrogen adsorption-desorption and transmission electron microscopy were used to characterize the structure and morphology of the SBA-15 and NiCo 2 O 4 . The pseudocapacitive performance of the samples were tested by electrochemical workstation. The results demonstrate that the ordered mesoporous NiCo 2 O 4 electrode material exhibit excellent
more » ... seudocapacitance. The specific capacitances were calculated to be 1079.6 F g -1 , 1012 F g -1 , 943.9 F g -1 and 820 F g -1 at current densities of 1 A g -1 , 2 A g -1 , 4 A g -1 and 10 A g -1 , respectively. The cycling stability during the 1000 cycles was more than 96%. Therefore, the ordered mesoporous NiCo 2 O 4 electrodes materials are an excellent supercapacitor electrode materials.
doi:10.20964/2018.12.08 fatcat:itsfv4f23ndcngzkqp4gdbkzjy