Fig. 3: Characterization and electrochemical performance of catalytic GC sheet. | Nature Communications

Fig. 3: Characterization and electrochemical performance of catalytic GC sheet.

From: Ultrastable halide perovskite CsPbBr3 photoanodes achieved with electrocatalytic glassy-carbon and boron-doped diamond sheets

Fig. 3

a Tilted (45°) SEM micrograph of a GC sheet coated with Ni nanopyramids and NiFeOOH catalyst. b XRD diffractograms of bare GC sheet and GC/Ni sheet. c LSV plots (in the dark) of various functionalized GC sheets with Ni nanopyramids and NiFeOOH (solid lines) and linear extrapolation for OER onset potential determination (dashed lines). Electrolyte is aqueous 1 M NaOH (pH 14). 50 mV s−1 scan rate. d Electrochemical overpotential stability test at 10 mA cm−2 in 1 M NaOH (pH 14) on GC/Ni/NiFeOOH catalytic sheet.

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