Electrodeposited Pd nanoparticles on polypyrole/nickel foam for efficient methanol oxidation

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dc.contributor.authorKarazehir, Tolga
dc.date.accessioned2025-01-06T17:43:51Z
dc.date.available2025-01-06T17:43:51Z
dc.date.issued2023
dc.description.abstractThe present work describes the Ni foam (Ni-F)/polypyrrole (PPy)/palladium (Pd) (Ni-F/PPy/ Pd) multilayered catalysts via a facile electrochemical technique. Potentiostatic deposition of PPy on the surface of Ni-F is followed by galvanostatic deposition of Pd nanoparticles on Ni-F/PPy acted as supports for electrochemical deposition of Pd nanoparticles. The pro-duced catalysts are utilized for electrocatalytic methanol oxidation in alkaline media. Chronoamperometry (CA), cyclic voltammetry (CVs), and electrochemical impedance spectroscopy (EIS) techniques are used to examine the electrocatalytic performance of Ni-F/PPy/Pd based electrodes for methanol oxidation. The polypyrrole modification on Ni-F leads to an improvement in the electrocatalytic activity of the Ni-F/PPY-Pd catalysts toward methanol oxidation. As an open-pored, porous metal with high electrical conductivity, nickel foam produces a substantial amount of active area during the modification of Pd and polypyrrole, which results in significant catalytic activity and a rapid rate charge transfer reaction kinetics on methanol oxidation. The Ni-F/PPy/Pd10 catalyst exhibits enhanced specific activity than its counterparts and a reduced onset potential for methanol oxida-tion, as well as a low Tafel slope. Based on these results, Ni-F/PPy/Pd10 is suggested as a good material for the anode in the electrocatalytic oxidation of methanol. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.ijhydene.2022.12.059
dc.identifier.endpage10506
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue28
dc.identifier.scopus2-s2.0-85145831301
dc.identifier.scopusqualityQ1
dc.identifier.startpage10493
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2022.12.059
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2837
dc.identifier.volume48
dc.identifier.wosWOS:000999329700001
dc.identifier.wosqualityQ1
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.subjectPalladium
dc.subjectPolypyrrole
dc.subjectNickel Foam
dc.subjectMethanol oxidation
dc.titleElectrodeposited Pd nanoparticles on polypyrole/nickel foam for efficient methanol oxidation
dc.typeArticle

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