Fig. 3: Electrocatalytic activity of CdPS3 catalyst for hydrogenation of HMF to BHMF.
a Polarization curves (without iR correction) of CdPS3 nanosheet electrode in 0.1 M PBS (pH = 9.2) electrolyte with (blue) and without (brown) 20 mM HMF. b Comparison of HMF hydrogenation activity of CdPS3 electrodes activated in 0.1 M PBS in the presence and absence of HMF under 10, 25, and 50 CV activation cycles. The chronoamperometric method was employed at −0.6 VRHE to evaluate their performances. c The potential dependent BHMF yield of CdPS3 _25 electrode for 10 mM HMF hydrogenation in 0.1 M PBS electrolyte. d Potential dependent FE for CdPS3 _25 electrodes in 0.1 M PBS (blue) and 0.1 M BBS (orange). Error bars represent the standard deviation of the corresponding values calculated from three independent samples. e The cycling test of the same CdPS3 _25 electrode for HMF hydrogenation at −0.7 VRHE. f The retention concentration of HMF, accumulated BHMF (bottom), and the corresponding chronoamperometric test over passed charge (top) during HMF hydrogenation at −0.7 VRHE.
