Fig. 5: Experimental evidence for H* spillover.
From: Dual spillover of carbon monoxide and hydrogen initiates tandem urea electrosynthesis
a Plots of C vs. η of the Cu, PdHx/rGO and PdHx/Cu catalysts. b CVs of the Cu, PdHx/rGO and PdHx/Cu catalysts in 0.2 M KHCO3 electrolyte at a scan rate of 20 mV s−1. In situ ATR-SEIRAS spectra for the (c) Cu and (d) PdHx/Cu catalysts during reaction at the potential range of − 0.4 to − 0.7 V vs. RHE in KHCO3 electrolyte without feeding. e In situ ATR-SEIRAS and FT-IR spectra for the PdHx/Cu catalysts at − 0.7 V vs. RHE in KHCO3/H2O or KDCO3/D2O solution. f In situ ATR-SEIRAS for the PdHx/Cu catalysts at − 0.7 V vs. RHE in KDCO3/D2O solution with different feedings.
