OER activity of recently reported and highly active NiFe- and CoFe-based LDH and oxyhydroxide catalysts, including trimetallic and multimetallic variants.
| Catalyst | Substrate | Catalyst loading (mg cm−2) | Electrolyte | η (mV) @ Jgeo = 10 mA cm−2 | Ref. (year) |
|---|---|---|---|---|---|
| CoFe LDH | GC | 0.21 | 1 M KOH | 331 (±3) | 823 (2016) |
| Gelled-FeCoW oxyhydroxide | GC | 0.21 | 1 M KOH | 223 (±2) | 823 (2016) |
| Co5Fe3Cr2 (oxy)hydroxide | GC | 0.2 | 1 M KOH | 232 | 895 (2021) |
| CoCuFeMo (oxy)hydroxides | Cu foil | 1 | 1 M KOH | 199 | 896 (2021) |
| Ni6Fe2Cr1 LDH | GC | 0.2 | 1 M KOH | 280 | 897 (2018) |
| Ni3Fe0.5V0.5 | CFP (0.2 cm2) | — | 1 M KOH | 200 | 899 (2018) |
| Ni–Fe–Mo (oxy)hydroxides | NF | 1.6 | 1 M KOH | 238 | 900 (2018) |
| NiFeCe-LDH/CNT | GC | 0.2 | 1 M KOH | 227 | 901 (2018) |
| NiFeMn-LDH | CFP | 0.2 | 1 M KOH | 310 | 902 (2016) |
| NiFe | CFP | 1.67 | 1 M KOH | 248 | 906 (2020) |
| NiFeMo | CFP | 1.67 | 1 M KOH | 201 | 906 (2020) |
| NiFeMoW | CFP | 1.67 | 1 M KOH | 205 | 906 (2020) |
| FeCo | CFP | 1.67 | 1 M KOH | 266 | 906 (2020) |
| FeCoMo | CFP | 1.67 | 1 M KOH | 233 | 906 (2020) |
| FeCoMoW | CFP | 1.67 | 1 M KOH | 212 | 906 (2020) |
| Pororus monolayer NiFe LDH | GP | 0.35 | 1 M KOH | 230 | 846 (2019) |
| NiFe LDH | GC | 0.1 | 1 M KOH | 270 | 894 (2019) |
| NixFe1−xSe2 derived | NF (0.2 cm2) | — | 1 M KOH | 195 | 861 (2016) |
| Ni3FeN | GC | 0.35 | 1 M KOH | 280 | 866 (2016) |
| Fe–Ni–F | GC | 0.714 | 1 M KOH | 225 | 859 (2019) |
| NiFe LDH | GC | 0.1 | 0.1 M KOH | 348 | 1775 (2020) |
| CoFe LDH | GC | 0.1 | 0.1 M KOH | 404 | 1775 (2020) |
| Ni2.5Co0.5Fe LDH | NF | 0.3 | 0.1 M KOH | 275 | 905 (2016) |
| NiFeS | GC | 0.25 | 0.1 M KOH | 286 | 858 (2017) |
| NiFe LDH (pristine) | NF | — | 1 M KOH | 182 | 113 (2019) |
| Aged–NiFe LDH | NF | — | 1 M KOH | 184 | 113 (2019) |