Improved catalytic activity in PdCo nanocatalysts synthesized via ultrasonic spray method for PEMFC applications

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dc.authoridAKDAG, ABDURRAHMAN/0000-0001-5292-8001
dc.authoridBuyukkanber, Kaan/0000-0003-4210-9349
dc.contributor.authorEkinci, Arzu
dc.contributor.authorBuyukkanber, Kaan
dc.contributor.authorAkdag, Abdurrahman
dc.contributor.authorSahin, Ohmer
dc.date.accessioned2024-12-24T19:27:18Z
dc.date.available2024-12-24T19:27:18Z
dc.date.issued2024
dc.departmentSiirt Üniversitesi
dc.description.abstractThe current emphasis of research on PEM fuel cells is the exploration of novel, resilient, and very efficient electrocatalysts that do not rely on platinum, while also ensuring long-term stability. This study aimed to enhance the catalytic activity as cathode electrocatalysts by synthesizing Palladium-cobalt alloy nanoparticles using the ultrasonic spraying (US) technique and then dispersing them over a carbon black substrate. The ultrasonic spray method produces crystalline catalysts in the liquid-vapor interface reaction without requiring additional energy. Analyses were performed using XRD, SEM, EDS, XPS and TEM to determine the structural and morphological properties of the nanocatalysts. XRD analysis determined the average particle size of USCo-Pd/C and US-CoPd/C nanocatalysts to 1.37 nm and 1.09 nm, respectively. CV measurements identified ECSA values for USCo-Pd/C and US-CoPd/C as 7.1 m(2)/gPd and 8.9 m(2)/gPd. The relative performance ranking of cathode electrocatalysts for PEM fuel cells was evaluated at a cell temperature of 70 C-degrees. The order of reactivity for the catalysts is as follows: US-CoPd/C > USCo-Pd/C > PdCo/C > Pd/C. The better electrochemical performance of USCo-Pd/C and US-CoPd/C nanocatalysts as cathode catalysts in PEM fuel cell applications, in comparison to Pd/C and PdCo/C catalysts, can be attributed to the modification of the electronic structure of palladium. This modification depends on the synthesis of cobalt and palladium metals together using the US method and the synergistic effect of the catalysts.
dc.description.sponsorshipIstanbul Technical University Research Foundation [MGA-2022-43567]; [MGA- 2022-43567]
dc.description.sponsorshipThe authors would like to thank the I center dot stanbul Technical University Research Foundation for providing financial support through the MGA-2022-43567 project.
dc.identifier.doi10.1016/j.ijhydene.2024.10.293
dc.identifier.endpage820
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.scopus2-s2.0-85207262899
dc.identifier.scopusqualityQ1
dc.identifier.startpage810
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2024.10.293
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6595
dc.identifier.volume92
dc.identifier.wosWOS:001348689900001
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_20241222
dc.subjectPdCo nanocatalysts
dc.subjectUltrasonic spray
dc.subjectPEM fuel cells
dc.subjectCathode
dc.subjectElectrochemical
dc.titleImproved catalytic activity in PdCo nanocatalysts synthesized via ultrasonic spray method for PEMFC applications
dc.typeArticle

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