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AuthorAhmad Y.H.
AuthorEl-Sayed H.A.
AuthorMohamed A.T.
AuthorAljaber A.S.
AuthorAl-Qaradawi S.Y.
Available date2022-01-11T10:46:25Z
Publication Date2020
Publication Name534
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.apsusc.2020.147617
URIhttp://hdl.handle.net/10576/25646
AbstractDevelopment of self-assembled nanoarchitectures of tailored morphology and composition for diversified applications have received great interest in the last decades. Pt-based nanocrystals (NCs) exhibited enhanced catalytic performance towards different applications specially as electrocatalysts for fuel cells. Herein, ternary PtIrCu nanocrystals (NCs) were prepared via one-pot synthesis procedure and employed as electrocatalyst for methanol oxidation reaction (MOR) in acid medium. The as-prepared ternary NCs exhibited mass activity of 863 mA mg−1 which is almost 1.5, 2.2, and 6.0 times more greater than that of PtCu, PtIr, and Pt/C, respectively. Additionally, after stability test for 1000 s, the retained current density on PtIrCu NCs was 13.6 times higher than that on Pt/C. The enhanced catalytic activity and durability of ternary PtIrCu NCs compared to PtCu, PtIr, and Pt/C was assigned to the strain and electronic effects which enhance the oxidation kinetics and enhance the poisoning tolerance towards CO-like intermediate species.
Languageen
PublisherElsevier B.V.
SubjectCopper
Iridium
Methanol oxidationPlatinum
Porous nanocrystals
TitleRational one-pot synthesis of ternary PtIrCu nanocrystals as robust electrocatalyst for methanol oxidation reaction
TypeArticle
dc.accessType Abstract Only


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