Fig. 3: Understanding the correlation between OER activity and local structure transformation. | Nature Communications

Fig. 3: Understanding the correlation between OER activity and local structure transformation.

From: Zhang-Rice singlets state formed by two-step oxidation for triggering water oxidation under operando conditions

Fig. 3: Understanding the correlation between OER activity and local structure transformation.

a, b 3D patterns of operando Cu K-edge XANES of H-Cu2O and Cu2O catalysts. c, d Structural coherence change of Cu–O in EXAFS coordination number (N) and bond length (R) of H-Cu2O and Cu2O catalysts under an applied potential relative to the OCP state. e Comparison of Cu K-edge WT-EXAFS recorded for H-Cu2O, standard references (Ref.) and catalytic materials at OCP, 1.4, 1.5 V and after OER (stages I, II, and III are assigned to hydroxylation, oxygen evolution and after OER (potential off), respectively).

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