Fig. 3 | Nature Communications

Fig. 3

From: Seed-mediated atomic-scale reconstruction of silver manganate nanoplates for oxygen reduction towards high-energy aluminum-air flow batteries

Fig. 3

Electrocatalytic activities for oxygen reduction reaction. a Linear scan voltammogram (LSV) curves for the Ag nanoparticle, bulk manganese oxides (BM), polyhedron manganese oxide (PM), silver manganate nanoplate (SMNp), and a commercial Pt/C catalyst at a rotating ring–disk electrode (1600 r.p.m) in O2-saturated 0.1 M KOH solution with a scan rate of 5 mV s–1. All data have been calibrated by using Ar-saturated 0.1 M KOH solution. b, c The corresponding number of transferred electrons (b) and Tafel plots (c) of the Ag, BM, PM, SMNp, and Pt/C. Id represents the limiting current density obtained at a potential of 0.30 V in a. d Chronoamperometric response of the SMNp and 20 wt% Pt/C in O2-saturated 0.1 M KOH electrolytes at 0.85 V (vs. RHE) with 1600 r.p.m showing good stability of SMNp compared with Pt/C

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