Figure 2

Linear scan voltammetry under continuous CO2 and Ar purge in 0.5 M KHCO3 and 0.5 M Na2SO4, respectively for samples (a) 1-CuZn, (b) 2-CuZn, (c) 3-CuZn, and (d) 4-CuZn.

Linear scan voltammetry under continuous CO2 and Ar purge in 0.5 M KHCO3 and 0.5 M Na2SO4, respectively for samples (a) 1-CuZn, (b) 2-CuZn, (c) 3-CuZn, and (d) 4-CuZn.