Facile Preparation of Porous Carbon Flake-Supported Nickel Nanoplates as Effective Catalysts for Methanol Electrooxidation

Herein, we report a facile and efficient method for fabricating porous carbon flakes (PCFs)-supported nickel nanoplates (Ni NPs) as electrocatalysts for methanol oxidation in alkaline media. The catalyst was fabricated in one step using molten salt synthesis. Various techniques were used to characte...

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Bibliographic Details
Published in:Catalysts 2022-05, Vol.12 (5), p.556
Main Authors: Aldalbahi, Ali, El-Newehy, Mohamed H., El-Hamshary, Hany, Samuel, Edmund, Yoon, Sam S.
Format: Article
Language:English
Subjects:
Alternative energy
Carbon
carbon flake
Carbon monoxide
Catalysts
Chemical reactions
Decomposition
Design engineering
Electrocatalysts
Flakes
fuel cell
Fuel cells
Methanol
methanol oxidation
Microscopy
Molten salts
Morphology
Nickel
nickel nanoparticle
Oxidation
Poisoning
Polyvinyl alcohol
Quantum dots
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Summary:Herein, we report a facile and efficient method for fabricating porous carbon flakes (PCFs)-supported nickel nanoplates (Ni NPs) as electrocatalysts for methanol oxidation in alkaline media. The catalyst was fabricated in one step using molten salt synthesis. Various techniques were used to characterize the morphology and composition of the Ni NPs@PCFs catalyst, and these revealed that the Ni NPs were dispersed finely across the PCFs with a highly crystalline structure. The Ni NPs@PCFs catalyst demonstrated high electrocatalytic activity for methanol oxidation (121 mA/cm2 vs. Ag/AgCl), and it had an onset potential of 0.35 V. It also exhibited high stability in an alkaline electrolyte for the duration of the experiment (up to 2000 s).
ISSN:2073-4344
2073-4344
DOI:10.3390/catal12050556