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Published in: Journal of Materials Science: Materials in Electronics 4/2024

01-02-2024

Understanding the role of precursor concentration in the hydrothermal synthesis of nickel phosphate hydrate for supercapacitors

Authors: Neha K. Gaikwad, Satyajeet S. Patil, Abhishek A. Kulkarni, Rushikesh M. Dahotre, Ankita P. Salunkhe, Pramod S. Patil, Tejasvinee S. Bhat

Published in: Journal of Materials Science: Materials in Electronics | Issue 4/2024

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Abstract

With the developing technology, the demand for energy storage devices has been ever-increasing. Supercapacitors over the years have delivered high power density along with a moderate energy density. Herein, this study reports Nickel Phosphate Hydrate (Ni(PO4)3*8H2O) (NPH) as a battery-type electrode which was synthesized using a hydrothermal method. The formation of NPH on the nickel (Ni) foam was verified by the X-ray diffraction (XRD) technique which provided information about the monoclinic structure and the “I2/m” space group of the material. The morphology of the material was studied using scanning electron microscopy (SEM) which demonstrated a micro-slab like morphology. The electrochemical characteristics were evaluated in a 1 M KOH electrolyte with a potential window of − 0.2 and 0.55 V vs. SCE, the electrode delivered an areal capacitance of 3475.76 mF cm−2 at 10 mA cm−2. Furthermore, the material delivered an energy density of 173.78 µWh cm−2 while retaining ~ 84.74% of its initial capacitance over 1000 charge-discharge cycles showing its promising characteristics for the future of energy storage devices.

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Appendix
Available only for authorised users
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Metadata
Title
Understanding the role of precursor concentration in the hydrothermal synthesis of nickel phosphate hydrate for supercapacitors
Authors
Neha K. Gaikwad
Satyajeet S. Patil
Abhishek A. Kulkarni
Rushikesh M. Dahotre
Ankita P. Salunkhe
Pramod S. Patil
Tejasvinee S. Bhat
Publication date
01-02-2024
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 4/2024
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-023-11883-9

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