Fig. 3: Origination of electrocatalytic urea synthesis activity and stability.
From: Ligand engineering towards electrocatalytic urea synthesis on a molecular catalyst
a Electrostatic potential (ESP) of CuPc-Amino and CuPc. b Hirshfeld charges of CuPc-Amino and CuPc. The orange, gray, blue and white balls represent Cu, C, N and H atoms, respectively. X-ray photoelectron spectra of as-prepared and post-electrolysis (c) CuPc and (d) CuPc-Amino. Raman spectra of as-prepared and post-electrolysis (e) CuPc and (f) CuPc-Amino.
