In situ Raman study of high potential scan enhanced Pt/C and Pd/C catalyst performance for ethanol oxidation

Abstract

The efficient catalysis of ethanol oxidation (EOR) is of paramount importance for the progress of energy conversion and storage technologies. We investigate the improved catalytic performance of commercial J-M Pt/C and Pd/C catalysts for ethanol oxidation by utilizing high potential scanning. By employing in situ Raman spectroscopy, we analyze the reaction intermediates during electrochemical reactions. Our findings highlight that the Pd/C catalyst exhibits remarkable enhancements in catalytic activity and stability, which can be attributed to the activation at high potentials on Pd/C electrode. Interestingly, different results are observed between Pt/C and Pd/C catalysts under the same experimental conditions. This study provides valuable insights into the design and development of efficient catalysts for ethanol oxidation.

Keywords

• Ethanol oxidation
• Pt/C
• Pd/C
• High potential scanning
• Catalytic activation
• in situ Raman spectroscopy