Electrodeposited Cobalt Hydroxide Thin Films: A Comprehensive Investigation from Synthesis to Advanced Electrochemical Behavior for High-Performance Energy Storage

The synthesis and characterization of cobalt hydroxides generated from cobalt chloride precursors at various concentrations (0.1 to 0.5 M) by using cathodic electrochemical deposition technique for prospective energy storage application. The Co(OH) 2 thin films were discovered to have a crystalline...

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Published inTransactions on electrical and electronic materials Vol. 25; no. 5; pp. 589 - 599
Main Author Naeem, Sajid
Format Journal Article
LanguageEnglish
Published Seoul The Korean Institute of Electrical and Electronic Material Engineers (KIEEME) 01.10.2024
한국전기전자재료학회
Subjects
Chemistry and Materials Science
Electronics and Microelectronics
Instrumentation
Materials Science
Optical and Electronic Materials
Regular Paper
전기공학
Electrochemical deposition
Supercapacitor
MATLAB simulation
Material science
Cobalt hydroxides
Energy storage
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ISSN1229-7607
2092-7592
DOI10.1007/s42341-024-00542-3

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Summary:The synthesis and characterization of cobalt hydroxides generated from cobalt chloride precursors at various concentrations (0.1 to 0.5 M) by using cathodic electrochemical deposition technique for prospective energy storage application. The Co(OH) 2 thin films were discovered to have a crystalline structure with a crystallite size of ~ 40 nanometers, particle size of 180 nm, and a leaf-like morphology via XRD (X-ray Diffraction) and SEM (Scanning Electron Microscopy) respectively. Further properties were investigated by EDS (Energy-Dispersive X-ray Spectroscopy), FTIR (Fourier Transform Infrared Spectroscopy), and UV Vis Spectra (Ultraviolet-Visible Spectroscopy) analysis. The presence of cobalt hydroxide was confirmed by EDS, verifying the purity of the substance. Electrochemical characteristics, such as CV (Cyclic Voltammetry), GCD (Galvanostatic Charge-Discharge), and EIS (Electrochemical Impedance Spectroscopy) analysis, indicated capacitive behavior, confirming their feasibility for energy storage. The specific capacitances from 450 to 1250 F/g were measured from the GCD curve. The MATLAB study gave quantitative data on critical electrode characteristics which improved the understanding of the performance and a framework for further investigation in the development of sustainable energy solutions. Graphical Abstract
ISSN:1229-7607
2092-7592
DOI:10.1007/s42341-024-00542-3