fig5
Figure 5. (A and B) In situ infrared spectra of CO desorption in Pt2/LaQS and Pt2/LaOV-r; (C-E) 4-HPE adsorbed on La, OV and Pt sites on Pt2/LaOV-r; (F) a proposed hydrogenation mechanism of EL to GVL. 4-HPE: 4-hydroxyvalerate; EL: ethyl levulinate; GVL: γ-valerolactone.
