| Ethanol oxidation on Pt/CNF-GNPs/GDL electrode for fuel cell application |
| کد مقاله : 1048-THFC |
| نویسندگان |
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مریم یلداگرد * دانشگاه ارومیه. دانشکده فنی و مهندسی |
| چکیده مقاله |
| Among the direct alcohol fuel cells, ethanol fuel cell is considered the most pleasant in terms of safety and power density. In this research, Pt/CNF-GNPs /GDL electrode was developed by using GNPs and CNFs as a supporting medium on carbon paper and electrodeposition method to deposit Pt catalyst. The morphology and structure features of the prepared film samples are characterized by FESEM and XRD. Pt particles of about 6.53nm were uniformly deposited on porous support. Catalytic activities of the prepared electrode for the ethanol oxidation reaction was evaluated through cyclic voltammetry measurements. Based on the electrochemical properties it was found that the as prepared Pt/CNF-GNPs/GDL electrocatalyst exhibited a comparable activity for ethanol oxidation reaction with respect to the Pt/C, which may be attributed to high specific surface area of graphene nanoplates support as well as high conductivity of CNFs. A rather significant reduction in the peak potential of methanol electro-oxidation from 0.79V for Pt/C/GDL to 0.59V Pt/CNFs-GNPs/GDL for electrode indicates that an increase in the activity for EOR is achieved by replacing the C by CNF-GDL. |
| کلیدواژه ها |
| Ethanol oxidation, CNF, GDL, fuel cell |
| وضعیت: چکیده برای ارائه پذیرفته شده است |