fig3
Figure 3. Alkaline OER comparison of bare NF, ZIF-67 and Mn-ZIF-67. (A) Polarization profiles recorded in 1.0 M KOH; (B) η values at 10 and 100 mA cm-2 together with current density at 1.53 V vs. RHE; (C) Tafel analysis; and (D) 12 h chronoamperometric response of Mn-ZIF-67 at 1.465 V vs. RHE. OER: Oxygen evolution reaction; NF: nickel foam; ZIF-67: zeolitic imidazolate framework-67; RHE: reversible hydrogen electrode.
