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AuthorAdewale K., Ipadeola
AuthorAbdelgawad, Ahmed
AuthorSalah, Belal
AuthorGhanem, Alaa
AuthorChitt, Mira
AuthorAbdullah, Aboubakr M.
AuthorEid, Kamel
Available date2024-05-05T08:09:58Z
Publication Date2023-05-04
Publication NameInternational Journal of Hydrogen Energy
Identifierhttp://dx.doi.org/10.1016/j.ijhydene.2023.04.149
CitationIpadeola, A. K., Abdelgawad, A., Salah, B., Ghanem, A., Chitt, M., Abdullah, A. M., & Eid, K. (2023). Self-standing foam-like Pd-based alloys nanostructures for efficient electrocatalytic ethanol oxidation. International Journal of Hydrogen Energy, 48(78), 30354-30364.
ISSN0360-3199
URIhttps://www.sciencedirect.com/science/article/pii/S0360319923019092
URIhttp://hdl.handle.net/10576/54616
AbstractIn this work, self-standing binary porous PdM (M = Ni, Fe and Co) foam-like nanostructures are rationally designed by a rapid and one-step aqueous-solution method, including ice co-reduction of metal precursors using sodium borohydride. Amongst the tested PdM nanostructures, the PdNi nanostructures delivered a superior alkaline ethanol oxidation reaction (EOR) activity and stability than those of PdFe, PdCo, and commercial Pd/C catalysts. The EOR mass activity of PdNi (4.81 A/mgPd) was 1.32, 1.51, and 24.05-folds of PdFe (3.62 A/mgPd), PdCo (3.19 A/mgPd) and Pd/C (0.2 A/mgPd), respectively based on equal Pd mass loading. This was attributed to the lower synergetic effect of PdNi, which enhanced activation/dissociation of H2O to afford OH- species required for fast EOR kinetics; meanwhile, porous foam-like nanostructure improved electron mobility and increased accessible active sites. This study reveals that low synergism in porous PdM nanocrystals is beneficial for augmenting the EOR activity, which may allow the design of other binary Pd-based alloys for various electrocatalytic reactions.
SponsorThis work was supported by the Qatar University High Impact Internal Grant (QUHI-CAM-22/23–550) and Qatar National Research Fund (NPRP13S-0117–200095).
Languageen
PublisherElsevier
SubjectPorous binary Pd alloy
Porous PdNi alloy
Alkaline ethanol oxidation
Porous PdFe alloy
Porous PdCo alloy
TitleSelf-standing foam-like Pd-based alloys nanostructures for efficient electrocatalytic ethanol oxidation
TypeArticle
Pagination30354-30364
Issue Number78
Volume Number48
ESSN1879-3487
dc.accessType Full Text


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