Catalytic insights into methanol electrooxidation on Ni foam modified with Bi 2 O 3-Acetylene black-rGO: Synthesis, characterization, and performance evaluation

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dc.authoridKardas, Gulfeza/0000-0002-7871-6303
dc.authoridDogru Mert, Basak/0000-0002-2270-9032
dc.authoridMERT, MEHMET ERMAN/0000-0002-0114-8707
dc.authoridAksaray, Goncagul/0000-0003-4338-6049
dc.contributor.authorAksaray, Goncagul
dc.contributor.authorMert, Mehmet Erman
dc.contributor.authorMert, Basak Dogru
dc.contributor.authorKarda, Gulfeza
dc.date.accessioned2025-01-06T17:37:35Z
dc.date.available2025-01-06T17:37:35Z
dc.date.issued2024
dc.description.abstractThe aim of this study was to develop efficient anode materials for direct methanol fuel cell applications. The Ni foam was modified with Bi 2 O 3 - acetylene black-rGO to increase catalytic activity toward methanol oxidation. The Bi 2 O 3 was synthesized via a straightforward green technique. The characterization was achieved by using Fourier transform infrared spectroscopy and X -Ray diffraction analysis. The transmission electron microscope and field emission scanning electron microscope was utilized to evaluate the surface properties of catalysts, and energy-dispersive X-ray spectroscopy were employed to determine the chemical composition. Bi 2 O 3 particles with diameters ranging from 15 to 75 nm were crystal structures in the (111), (220), (311), and (342) crystal planes. The performance of methanol electrooxidation in an alkaline medium was investigated using cyclic voltammetry, electrochemical impedance spectroscopy and chronoamperometry techniques. The surface coverage of the redox species was 2.04 x 10 -5 mol g -1 , and the diffusion coefficient ranged between 8.02 x 10 -12 and 1.25 x 10 -13 cm 2 s - 1 . According to the obtained results, the Bi 2 O 3 - acetylene black-rGO modification enhanced the electrocatalytic activity of Ni foam against methanol oxidation in an alkaline medium.
dc.description.sponsorshipthe work reported in this paper.
dc.identifier.doi10.1016/j.ijhydene.2023.12.100
dc.identifier.endpage46
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.scopus2-s2.0-85181683725
dc.identifier.scopusqualityQ1
dc.identifier.startpage38
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2023.12.100
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2293
dc.identifier.volume75
dc.identifier.wosWOS:001259822900001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectElectrocatalyst
dc.subjectGreen synthesis
dc.subjectMethanol oxidation
dc.titleCatalytic insights into methanol electrooxidation on Ni foam modified with Bi 2 O 3-Acetylene black-rGO: Synthesis, characterization, and performance evaluation
dc.typeArticle

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