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        Surface and diffusive capacity controlled electrochemistry in nickel boride/nickel borate

        Vinit Kaluram Kanade,Chaitanya Kaluram Kanade,Rahul B. Pujari,Dong-Weon Lee,Girish Sambhaji Gund,김태성 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.116 No.-

        Electrochemical energy storage devices have attracted considerable attention because of their ability tosupply high energy and power in energy management systems. In this work, we synthesized highly electrochemicallyactive nickel boride/nickel borate (NixB/NiBxOy) composite materials using a chemicalcoprecipitation method. The variation of precursor solution’s concentration controlled the chemical, morphological,surface area and structural properties of composite material. The electrochemical measurementsof NixB/NiBxOy material display a high charge storage capacity of 201.5 mAh/g at 5 mV s1scan rate amongst the different concentration. The charge storage capacity, rate capability and cycle stabilityof NixB/NiBxOy materials were effectively controlled by the material composition, structure, size,surface area and porosity feature through the charge kinetics, surface and diffusive capacity contributionand the battery–type charge storage mechanism. These findings provide an important insight to controlelectrochemical properties by optimizing the physical and chemical features of battery–type material.

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