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Synthesis and characterization of NiCo2O4 nanoplates as efficient electrode materials for electrochemical supercapacitors

机译:NiCo2O4纳米板作为电化学超级电容器的有效电极材料的合成与表征

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In the present work, NiCo2O4 nanoplates were prepared by a facile, low temperature, hydrothermal method, followed by thermal annealing and used supercapacitor applications. The physico-chemical characterization of as-prepared materials were investigated by means of X-ray diffraction (XRD), Fourier transform infra-red spectroscopy (FT-IR) and field emission scanning electron microscopy (FE-SEM). The electrochemical measurements demonstrate that the NiCo2O4 nanoplates electrode (NC-5) exhibits a high specific capacitance of 332 F g(-1) at a scan rate of 5 mV s(-1) and also retained about 86% of the initial specific capacitance value even after 2000 cycles at a current density of 2.5 A g(-1). These results suggest that the fabricated electrode material has huge potential as a novel electrode material for electrochemical capacitors. (C) 2016 Elsevier B.V. All rights reserved.
机译:在目前的工作中,NiCo2O4纳米板是通过一种简便的低温水热方法制备的,然后进行热退火和使用超级电容器。通过X射线衍射(XRD),傅立叶变换红外光谱(FT-IR)和场发射扫描电子显微镜(FE-SEM)研究了所制备材料的物理化学特征。电化学测量表明,NiCo2O4纳米板电极(NC-5)在5 mV s(-1)的扫描速率下显示出332 F g(-1)的高比电容,并且还保留了约86%的初始比电容即使在电流密度为2.5 A g(-1)的情况下经过2000次循环后,该值仍保持不变。这些结果表明,制成的电极材料作为电化学电容器的新型电极材料具有巨大的潜力。 (C)2016 Elsevier B.V.保留所有权利。

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