fig6

Figure 6. Quantification of intrinsic electrocatalytic activity and emerging screening strategies. (A) Conventional electrocatalytic activity descriptors, such as j_geo and TOF, toward descriptors compatible with high-throughput screening; (B) An ORR kinetic descriptor based on voltammetric reversibility. This figure is adapted from reference^[42] (Graphical Abstract) under the terms of the CC BY 4.0 license; (C and D) Newly developed high-throughput screening methods: (C) intrinsic OER activity evaluation of single-particle TMOs and the corresponding melting point descriptor. This figure is reproduced with permission from reference^[43] Copyright © 2024 Wiley‐VCH GmbH; (D) An array-based intrinsic activity evaluation platform based on SECM and extraction of key parameters. TOF: Turnover frequency; ORR: oxygen reduction reaction; TMOs: transition metal oxides; SECM: scanning electrochemical microscopy; OER: oxygen evolution reaction; PC: personal computer; WE: working electrode.