Fig. 6: Electroreduction mechanism.
From: Modulating product selectivity in lignin electroreduction with a robust metallic glass catalyst
a The product distribution of 1a electroreduction under different catalysts (HL cp: hydrophilic carbon paper, HB cfc: hydrophobic carbon fiber cloth, C-Pd30Ni50P20: crystalline Pd30Ni50P20). b Electroreduction mechanism of 1a under neutral and acidic anolytes. c The free energy curve for 1a electroreduction by amorphous and crystalline Pd30Ni50P20 catalysts. d Distributions of the charge density difference for la adsorbed on amorphous and crystalline Pd30Ni50P20 catalysts. Reaction conditions: H-cell, −1.00 VRHE, 12 h, a three-electrode system with a Pd30Ni50P20 MG cathode (No. 1, 6) or carbon cloth-supported catalysts with the loading of 5.0 mg cm−2 (No. 2-5, 7-10) as the working electrode, a RuO2-IrO2/Ti mesh anode, and an Ag/AgCl reference electrode, with all potentials converted to the RHE scale. Catholytes: 5 mM 2-PAP in 14.25 mL [Emim][BF4]-MeOH-H2O (1:1:1. v/v/v), anolytes: 0.5 M Na2SO4 (pH = 7.00) and 0.5 M H2SO4 (pH = 0.30) with a pH error of ±0.05. The potential values are not iR-corrected. Source data for Fig. 6a, c are provided as a Source Data file.
