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. 2023 Mar 27;123(8):4972–5019. doi: 10.1021/acs.chemrev.2c00766

Scheme 4. Schematic Drawing Representing the Main Operando SEPM Configurations for OER Interrogation.

Scheme 4

The SEPM tip acts as the spectator and the electrocatalyst’s activity is tailored by an actuator method. The SEPM tip can employed for (i) collecting the OER products formed at the sample in SG-TC-SECM (ORR at the tip, orange arrows); (ii) selectively collecting the OER product when the sample surface is locally irradiated in SPECM; (iii) atomic-resolution mapping of crystalline surfaces; (iv) evaluating the electroactivity of semiconductors with SECCM coupled with light source.