Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 48, Issue 59, Pages 22495-22501Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2023.04.174
Keywords
NiCr-Layered double hydroxide; Nanosheets; SILD; Electrocatalyst; Water splitting; Hydrogen evolution reaction
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In this study, a novel direct synthetic route for producing NiCr-layered double hydroxide (LDH) nanosheets on a nickel foam surface using the Successive Ionic Layer Deposition (SILD) method was presented. The morphology of the nanolayers was characterized using SEM, TEM, XRD, and XPS. The electrocatalytic properties of the nanolayers were examined using electrochemical techniques. The results showed that the NiCr-LDH nanolayers exhibited good kinetics in both the cathode and anode areas when used as electrode materials in electrocatalytic cells for hydrogen production through electrolytic water splitting.
In this study, we present a novel direct synthetic route for producing NiCr-layered double hydroxide (LDH) nanosheets on a nickel foam surface using the Successive Ionic Layer Deposition (SILD) method. The morphology of the nanolayers was characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). Additionally, the electrocatalytic properties of the nanolayers were examined using electrochemical techniques. The NiCr-layered double hydroxide nanolayers produced through SILD using sodium hexahydroxochromate (III) anion precursor were found to be ultrathin nanosheets with a hydrotalcite-like structure and low crystallinity. The efficacy of electrodes based on these nanolayers as cathode and anode materials in electrocatalytic cells for hydrogen production through electrolytic water splitting in alkaline media were investigated. Our results showed that the electrode based on NiCr-LDH nanolayers exhibited good kinetics in both the cathode and anode areas.& COPY; 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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