Co-electrodeposited PtPd anodic catalyst for the direct formic acid fuel cells

This investigation displayed a superb catalytic performance toward the formic acid electro-oxidation reaction (FAOR) in an alkaline medium at a binary catalyst composed of Pt and Pd that were simultaneously electrodeposited onto a glassy carbon (GC) surface. Interestingly, the proposed PtPd/GC catal...

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Bibliographic Details
Published inEnergy reports Vol. 8; pp. 560 - 564
Main Authors Asal, Yaser M., Mohammad, Ahmad M., Abd El Rehim, Sayed S., Al-Akraa, Islam M.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2022
Elsevier
Subjects
Formic acid electro-oxidation reaction
Fuel cells
Poisoning
PtPd
Formic acid electro-oxidation reaction
Poisoning
Fuel cells
PtPd
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Summary:This investigation displayed a superb catalytic performance toward the formic acid electro-oxidation reaction (FAOR) in an alkaline medium at a binary catalyst composed of Pt and Pd that were simultaneously electrodeposited onto a glassy carbon (GC) surface. Interestingly, the proposed PtPd/GC catalyst displayed a significant enhancement in the catalytic activity (by ca. 12 times higher direct (Ipd) to indirect (Ipind) current ratio concurrently with ca. -91 mV shift in the onset potential (Eonset) and stability (ca. 2.5 times higher current density after 3600 s of continuous electrolysis) toward FAOR if compared to the Pt/GC catalyst. The catalytic enhancement was thought to arise mostly from minimizing the CO adsorption, i.e., third body effect, at the Pt surface during FAOR.
ISSN:2352-4847
2352-4847
DOI:10.1016/j.egyr.2022.10.232