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Table 2 Summary of the OER performance of the reported electrocatalysts

From: Hydrogen production from water electrolysis: role of catalysts

Catalysts Electrolyte η (mV) I (mA cm−2) Tafel slope (mV dec−1) Stability Refs.
Cu-doped RuO2 0.5 M H2SO4 188 10 43.96 10,000 cycles [58]
IrNi NPNW 0.1 M HClO4 283 10 56.7 200 min [59]
IrCo NPNW 0.1 M HClO4 295 10 60.3   
IrFe NPNW 0.1 M HClO4 302 10 68.5   
IrNiCu DNF 0.1 M HClO4 300 10 48 2500 cycles [60]
IrO2 NN 1 M H2SO4 313 10 57 200 h [61]
Au40Co60 NPs 0.1 M KOH 175 10 65 1 h [62]
G-FeCoW 1 M KOH 191 10   500 h [63]
Plasma-engraved Co3O4 0.1 M KOH 153 10 68 2000 cycles [64]
NiFe-LDH NPs 0.1 M KOH 151 30 50 10 h [65]
Ni0.83Fe0.17(OH)2 1 M KOH 245 10 61 10 h [66]
NixFe1−xSe2-DO 1 M KOH 195 10 28 24 h [67]