期刊
CERAMICS INTERNATIONAL
卷 48, 期 19, 页码 29484-29492出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2022.07.050
关键词
Nickel phosphate hydrate; Supercapacitors; Electrochemical performance; Hydrothermal
资金
- DST-PURSE Phase II (2018-2023)
- UGC DSA Phase II(2018-2023) Program
- National Research Foundation of Korea [NRF 2020R1A2C1015206, NRF 2019M3F5A1A01077146, NRF 2021M3H4A1A02051331]
In this study, nickel phosphate hydrate (NiPh) microplates were deposited on 3D Ni-foam using a facile hydrothermal method. The microstructures of NiPh electrodes varied with hydrothermal reaction time, and the electrochemical measurements showed that NiPh can be an efficient electrode material for energy storage applications.
In this study, the nickel phosphate hydrate (NiPh) microplates are deposited on 3D Ni-foam by a facile hydrothermal method. The microstructures of NiPh electrodes vary with hydrothermal reaction time (2, 4 and 6 h) at the constant reaction temperature. The structural, morphological and electrochemical characterizations of the NiPh electrodes were systematically studied. X-ray diffraction (XRD) study reveals a monoclinic crystal system of NiPh material with an I2/m space group. The scanning electron microscopy (SEM) analysis shows plates like microstructures. The electrochemical measurements of NiPh electrodes were carried out in 1 M KOH electrolyte in -0.2 to 0.55 V vs SCE potential window. NiPh (deposited at 2 h reaction time) electrode shows the specific capacitance of 855.11 F/g (178.18 mAh/g) at 10 mA/cm(2) current density. It is speculated that NiPh deposited on Ni-foam can be an efficient electrode material for energy storage applications.
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