fig2
Figure 2. (A) Schematic of photocatalytic CO2 reduction; (B) The potentials for the CO2 reduction and H2 reduction under standard conditions. The left is the thermodynamic equilibrium, and the colors highlight the overpotential for the specific products; (C) AM 1.5G solar spectrum; (D) SFE (left) and theoretical photocurrent density (right) under one sun illumination. (C and D) Reproduced with permission[64]. Copyright Elsevier. SFE: Solar-to-fuel conversion efficiency; AM: air mass; HER: hydrogen evolution reaction; RHE: reversible hydrogen electrode.
