Ayman, K.; Asal, Y.M.; Mohammad, A.M.; Al-Akraa, I.M. Efficient Electro-Oxidation of 2-Propanol at Platinum- and Gold-Modified Palladium Nanocatalysts. Journal of Chemistry 2023, 2023, 1–9, doi:10.1155/2023/6674344.
Ayman, K.; Asal, Y.M.; Mohammad, A.M.; Al-Akraa, I.M. Efficient Electro-Oxidation of 2-Propanol at Platinum- and Gold-Modified Palladium Nanocatalysts. Journal of Chemistry 2023, 2023, 1–9, doi:10.1155/2023/6674344.
Ayman, K.; Asal, Y.M.; Mohammad, A.M.; Al-Akraa, I.M. Efficient Electro-Oxidation of 2-Propanol at Platinum- and Gold-Modified Palladium Nanocatalysts. Journal of Chemistry 2023, 2023, 1–9, doi:10.1155/2023/6674344.
Ayman, K.; Asal, Y.M.; Mohammad, A.M.; Al-Akraa, I.M. Efficient Electro-Oxidation of 2-Propanol at Platinum- and Gold-Modified Palladium Nanocatalysts. Journal of Chemistry 2023, 2023, 1–9, doi:10.1155/2023/6674344.
Abstract
This study aims at investigating the catalytic performance of Pd, Pd/Pt, and Pd/Au nanocatalysts toward the 2-propanol electro-oxidation reaction (2POR) in an alkaline medium. The catalyst components (Pd, Pt, and Au) were sequentially electrodeposited onto a glassy carbon (GC) electrode surface and further characterized using electrochemical (cyclic voltammetry (CV)) and materials (Field-emission scanning electron microscopy (FE-SEM) coupled with energy dispersive X-ray (EDX)) characterization methods. The Pd/Au/GC catalyst showed the highest catalytic activity in terms of the highest oxidation current (0.386 mA) and the highest stability in terms of the highest obtained current after 1800 s of continuous electrolysis. This behaviour was attributed to the enhancement in the charge transfer kinetics where the Pd/Au/GC catalysts acquired the lowest charge transfer resistance (Rct, 1.85 kΩ) during the 2POR.
Chemistry and Materials Science, Physical Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.