Fig. 6: Stable surface and OER performances allowed by the potassium intercalation process. | Nature Communications

Fig. 6: Stable surface and OER performances allowed by the potassium intercalation process.

From: Cation insertion to break the activity/stability relationship for highly active oxygen evolution reaction catalyst

Fig. 6

a Postmortem HRTEM images for α-Li1IrO3 continuously cycled 300 times in 0.1 M KOH at a scan rate of 10 mV s−1 within a potential range of 1.1–1.7 V vs. RHE. The scale bar is 1 nm. b OER performances with time for α-Li1IrO3 measured in 0.1 M KOH and compared with similar measurements performed in 0.1 NaOH. c and d show the CV curves of α-Li1IrO3 after certain times of OER performance in 0.1 M KOH and NaOH, respectively. e Corresponding Tafel curves.

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