Abstract
Direct ethanol fuel cells are a key enabling technology for clean energy conversion; however, a major challenge is the determination of anode catalytic materials with high performance for complete ethanol oxidation. In this study, we synthesized binary Pt0.50–(CeO2)0.50/C and Pt0.50–(RuO y )0.50/C, as well as ternary Pt x –(RuO y –CeO2)1−x catalysts (x = 0.25, 0.50, or 0.75) and (y = 0, +2, or +3) by the sol–gel method and compared them in the ethanol oxidation reaction. Transmission electron microscopy images revealed the small particle size of the prepared catalysts (2.1–2.5 nm). Cyclic voltammetry, chronoamperometry, derivative voltammetry, and potentiostatic polarization were employed to analyze the ethanol oxidation reaction on binary Pt0.50–(CeO2)0.50/C and Pt0.50–(RuO y )0.50/C and ternary Pt x –(RuO y –CeO2)1−x catalysts, as well as Pt/C and Pt–Ru/C commercial catalysts, including some insights estimating a possible reaction mechanism. The results demonstrate, considering the activity outcomes approach, the highly superior performance of the Pt0.25–(RuO y –CeO2)0.75/C catalyst.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
