fig4

Figure 4. (A) LSV curves of MnZn/N,P-3D-GA in CO₂- and Ar- saturated 0.1 M KCl electrolytes; Catalytic performances of CO₂ER over MnZn/N,P-3D-GA (B) and carbon paper (C) in CO₂-saturated 0.1 M KCl electrolyte and over the MnZn/N,P-3D-GA catalyst in Ar-saturated 0.1 M KCl electrolyte (D). LSV: Linear sweep voltammetry; 3D: three-dimensional; GA: graphene aerogel; CO₂ER: CO₂ electrochemical reduction.