Assessment of the effect of electrophoretic deposition parameters on hydrogen storage performance of graphene oxide layer applied on nickel foam

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Yousefi Bonab, Seyyed Sadra and Kouzehgar, Hannaneh and Taghizadeh Tabrizi, Arvin and Aghajani, Hossein (2022) Assessment of the effect of electrophoretic deposition parameters on hydrogen storage performance of graphene oxide layer applied on nickel foam. International Journal of Hydrogen Energy, 47 (4). pp. 2491-2499. ISSN 0360-3199 (Print) 1879-3487 (Online)

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Abstract

In this study, the hydrogen storage capacity of the graphene oxide layer was studied electrochemically. The graphene oxide was synthesized by modified Hummers' method and applied on the nickel foam by electrophoretic deposition (EPD) method at different potentials (20 and 60 V) and times (20 and 60 min) to determine the effect of applied potential and time of deposition on the hydrogen adsorption performance. The hydrogen adsorption tests including charge-discharge test, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) were conducted in 6 M KOH solution and at room temperature. Based on the achieved CV curves, the graphene oxide (GO) layer achieved at 60 V within 20 min has a higher electrochemical hydrogen adsorption capability compared to other obtained samples. The calculated hydrogen storage capacity is obtained 50.9 mA. h. g−1. The rosette flower like morphology of the obtained GO layers at optimum condition, has an impressive effect on the improving electrochemical hydrogen adsorption based on morphology study by field emission scanning electron microscopy.
Item Type: Article
Uncontrolled Keywords: Electrophoretic deposition; Graphene oxide layer; Hydrogen storage; Nickel foam
Divisions: Sabancı University Nanotechnology Research and Application Center
Depositing User: Arvin Taghizadeh Tabrizi
Date Deposited: 27 Aug 2022 17:20
Last Modified: 27 Aug 2022 17:20
URI: https://research.sabanciuniv.edu/id/eprint/43862

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