Table 1.

Benchmarking of metal hydroxide HER electrocatalysts based on the overpotential at 10 mA cm⁻² in 1.0 M KOH.

Catalyst	Loading/ mg cm−2	Overpotential/ mV @ 10 mA cm−2	Tafel Slope/ mV dec−1	Reference
FeCo
LDH@Graphdyine	N/A	50	98.9	Hui et al.[96]
NiCr LDH	2	52	61.5	Ye et al.[91]
Aged NiFe LDH	N/A	59	62	Qiu et al.[90]
Ni(OH)2/FeNi foam	N/A	70	160	Zeng et al.[88]
Co(OH)2@PANI	0.74	70	91.3	Feng et al.[94]
O‐Vacant NiFe LDH	N/A	73	69	Liu et al.[98]
Ni5Co3Mo‐OH	0.2	75	59	Hao et al.[103]
CoNi‐OH/Ni foam	N/A	77	94	Bai et al.[83]
Ni0.9Co0.1‐OH	N/A	77	90	Liu et al.[104]
LaNi LDH	N/A	80	60	Ensafi et al.[105]
F‐doped NiFe LDH	3.3	91	N/A	Zhang et al.[92]
NiFeCo LDH	N/A	108	73	Babar et al.[101]
CoFe‐OH/Ni foam	N/A	110	72	Babar et al.[87]
Ni2.5Co0.5Fe‐OH	0.25	110	93	Zhu et al.[100]
NiFeV LDH	1.42	125	62	Dinh et al.[102]
NiCo LDH	1	130	141	Liu et al.[104]
NiFe LDH with trace Fe	N/A	170	83	Rajeshkhanna et al.[86]
NiCoFe LTH	N/A	185	70	Dinh et al.[102]
CoFe LDH with trace Fe	N/A	205	93	Rajeshkhanna et al.[86]
NiFe LDH	N/A	210	78	Qiu et al.[90]
CoFe LDH @g‐C3N4	0.14	210	79	Bhowmik et al.[97]
NiFe LDH	N/A	220	74	Ye et al.[91]
NiFe LDH@DG	2	270	110	Jia et al.[95]
Defected CoFe LDH	0.2	300	95	Liu et al.[84]
NiCo‐OH	0.35	350	120	Baranton and Coutanceau[82]

Note: N/A stands for not available and implies that the corresponding data were not provided in the cited reports.