CO2 Reduction

Re(R2-bpy)(CO)3X complexes are known to be some of the most efficient CO2 reduction catalysts to CO and formic acid with high catalytic turnover number and frequency. To improve the functionality of these catalysts, it is important to understand the relationship between molecular geometry and catalytic activity. In our research project funded by the AFOSR, we have been applying SFG vibrational spectroscopy to investigate the catalytic intermediates during electrocatalytic CO2 reduction by in situ SFG spectroelectrochemistry methods. In addition, we are exploring time-resolved SFG to study the vibrational relaxation dynamics of the Re(R2-bpy)(CO)3X complexes at the electrode surfaces by using IR pump as well as the electron transfer dynamics by using visible pump.