Preparation of melamine-Ni-Cu nanocomposite as a promising catalytic substrate for methanol electrooxidation

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Kamyabi Mohammad Ali; Azizi Javad

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Journal Paper

Paper Information

Journal: APPLIED CHEMISTRY TODAY Year:2024 | Volume:19 | Issue:72 Page(s): 205-224

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Information Journal Paper

Title

Preparation of melamine-Ni-Cu nanocomposite as a promising catalytic substrate for methanol electrooxidation

Author(s)

Kamyabi Mohammad Ali | Azizi Javad | Issue Writer Certificate

Keywords

nanocomposite MelCuNi

methanol oxidation

Hydrothermal

Catalyst

direct methanol fuel cell

Abstract

Melamine is a nitrogen-rich compound. Its composite with transition metals has an electron-rich structure and increases electrocatalytic activity and charge transfer. In this study, a copper-nickel melamine nanocomposite was prepared through a hydrothermal process and its electrocatalytic activity was investigated on the surface of a glassy carbon electrode modified with multi-walled carbon nanotubes (GC/MWNT/MelCuNi) towards the oxidation reaction of methanol. (MOR). The stability of the synthesized catalyst was investigated by chronoamperometry (CA) technique. The surface morphology of the modified electrode was characterized by field emission scanning electron microscopy (FESEM) and the structure of the catalyst was determined by X-ray diffraction (XRD) patterns. The resulting MelCuNi nanocomposite has a higher current density (92 mA. Cm-2) and significantly better stability for the electrocatalytic oxidation of methanol. The effect of nickel and copper nanoparticles on the electrocatalytic performance of the synthesized nanocomposite in the presence and absence of melamine compared to MOR was also investigated.

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