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AuthorAhmad, Yahia H.
AuthorMohamed, Assem T.
AuthorAlashraf, Abdullah
AuthorMatalqeh, Maha
AuthorEl-Shafei, Ahmed
AuthorAl-Qaradawi, Siham Y.
AuthorAljaber, Amina S.
Available date2024-03-25T06:42:37Z
Publication Date2020
Publication NameApplied Surface Science
ResourceScopus
ISSN1694332
URIhttp://dx.doi.org/10.1016/j.apsusc.2019.145222
URIhttp://hdl.handle.net/10576/53397
AbstractDirect ethanol fuel cells (DEFCs) have received great interest owing to their high power density and environmental friendness. Nevertheless, the designing of active, durable, and efficient anode for DEFCs is a profound challenge. In this context, we reported the synthesis of PtPd porous nanoclusters (PtPd PNCs) as electrocatalyst for ethanol oxidation reaction (EOR). This was implemented through two-step synthesis. Firstly, ternary AgPtPd nanodendrites (NDs) were synthesized via ultrasound-assisted co-reduction of the metal precursors using ascorbic acid (AA) as a mild reductant and Pluronic F127 as structure-directing agent. Thereafter, PtPd PNCs were created by selective chemical etching of AgPtPd nanocrystals in 1 M HNO3. The textural properties, morphology, and elemental composition of the studied electrocatalysts were investigated, and their catalytic activities towards ethanol electrooxidation were examined. PtPd PNCs revealed a high surface area of 83.0 m2 g−1 and high porosity compared to its counterparts. Additionally, it depicted enhanced catalytic performance towards ethanol electrooxidation in 1 M KOH with mass activity of 1.8 A mg−1 compared to PtPd NDs (0.97 A mg−1), Pt NDs (0.51 A mg−1), and Pt/C (0.33 A mg−1). The enhanced catalytic performance of PtPd PNCs was ascribed to high surface area, high porosity, and increased active sites.
Languageen
PublisherElsevier
SubjectEthanol electro-oxidation
Palladium
Platinum
Porous nanoclusters
Selective etching
TitleHighly porous PtPd nanoclusters synthesized via selective chemical etching as efficient catalyst for ethanol electro-oxidation
TypeArticle
Volume Number508
dc.accessType Abstract Only


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