[10a-E215-1~10] CS.10 Code-sharing session of 6.5&7.5

11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[10a-E215-10] Immobilization and Electrochemical Reduction of CO₂ on L-Lysine-modified Au Electrodes

〇Mikio Ito¹, Otonari Kaede¹, Noguchi Hidenori² (1.NIT, Tokyo College, 2.NIMS)

Keywords:

Self-assembled Monolayers,Electrochemical CO2 Reduction,Surface-enhanced Infrared Reflection Absorption Spectroscopy

This study investigates CO₂ capture and electrochemical reduction using gold electrodes modified with L-lysine (Lys) via self-assembled monolayers (SAMs). ATR-SEIRAS measurements of the Lys modified Au electrodes in 0.1 M Na₂SO₄ aq. confirmed that CO₂ is converted to carbamate/carbamic acid, with the amount increasing at more negative potentials, and that formic acid is generated as a reduction product. The results indicate that L-lysine-modified Au electrodes are promising materials capable of CO₂ capture and the production of useful substances in aqueous solutions.