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المؤلفAhmad, Yahia H.
المؤلفMohamed, Assem T.
المؤلفAlashraf, Abdullah
المؤلفMatalqeh, Maha
المؤلفEl-Shafei, Ahmed
المؤلفAl-Qaradawi, Siham Y.
المؤلفAljaber, Amina S.
تاريخ الإتاحة2024-03-25T06:42:37Z
تاريخ النشر2020
اسم المنشورApplied Surface Science
المصدرScopus
الرقم المعياري الدولي للكتاب1694332
معرّف المصادر الموحدhttp://dx.doi.org/10.1016/j.apsusc.2019.145222
معرّف المصادر الموحدhttp://hdl.handle.net/10576/53397
الملخصDirect 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.
اللغةen
الناشرElsevier
الموضوعEthanol electro-oxidation
Palladium
Platinum
Porous nanoclusters
Selective etching
العنوانHighly porous PtPd nanoclusters synthesized via selective chemical etching as efficient catalyst for ethanol electro-oxidation
النوعArticle
رقم المجلد508
dc.accessType Abstract Only


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