Fig. 2: Synthesis and HER activity of cobalt/alkali-Salen catalysts.
From: Bimetallic [Co/K] hydrogen evolution catalyst for electrochemical terminal C-H functionalization

a Synthetic route of cobalt/alkali-Salen catalysts. b Single-crystal structure of cat 2. c The chemical shifts of the protons in the HER catalysts. d Redox potentials of catalysts. e Cyclic voltammograms of HER catalyst (0.01 mmol) and acetic acid (0.175 mmol) in DMF (3.0 mL) solution with nBuNClO4 as electrolyte. DMF N,N-dimethylformamide, Fc ferrocene.