Fig. 5: Mechanism analysis of CO2 hydrogenation to HCOOH.
From: CO2 hydrogenation to HCOOH catalyzed by aqueous Pd needle assembly
In-situ DRIFTS spectra of a Pd HC-Nds, b Pd LC-Nds. Reaction pathway diagram for CO2 hydrogenation to HCOOH on the curvature structures, showing changes in reaction free energy, with TS indicating the transition state: c Pd-14 Å, d Pd-23 Å. The inset below shows the molecular structures at each reaction step. The color scheme is as follows: palladium (Pd) atoms are shown in dark teal, oxygen (O) in red, carbon (C) in gray, and hydrogen (H) in white.
