Co-electrodeposited PtPd anodic catalyst for the direct formic acid fuel cells. (December 2022)

• Record Type: Journal Article
• Authors: Asal, Yaser M.; Mohammad, Ahmad M.; Abd El Rehim, Sayed S.; Al-Akraa, Islam M.
• Is Part Of: Energy reports. Volume 8(2022)Supplement 16
• Page Start: 560
• Page End: 564
• Publication Date: 2022-12
• Subjects: Fuel cells -- Formic acid electro-oxidation reaction -- Poisoning -- PtPd; Power resources -- Periodicals; Energy industries -- Periodicals; Power resources; Periodicals; Electronic journals; 621.04205
• DOI: 10.1016/j.egyr.2022.10.232
• Languages: English
• ISSNs: 2352-4847

Abstract

Abstract: 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 ( I p d ) to indirect ( I p ind ) current ratio concurrently with ca. -91 mV shift in the onset potential ( E onset ) 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.