Hydrogen production from water electrolysis: role of catalysts

Nano Convergence

Table 1 Summary of the HER performance of the reported electrocatalysts

Catalysts	Electrolyte	η (mV)	I (mA cm⁻²)	Tafel slope (mV dec⁻¹)	Stability	Refs.
PtNi–Ni NA/CC	0.1 M KOH	38	10	42	90 h	[35]
PtNi–O/C	1 M KOH	39.8	10	78.8	10 h	[36]
PtNi(N) NW	1 M KOH	13	10	29	10 h	[37]
Mo₂C-R	1 M KOH	200	30	45		[38]
Mo₂C-R	0.5 M H₂SO₄	200	32	58	2000 cycle
Mo₂C-GNR	0.5 M H₂SO₄	167	10	63	3000 cycles	[39]
	1 M NaOH	217	10	64	3000 cycles
	1 M PBS	266	10	74	3000 cycles
Ni₂P/Ti	0.5 M H₂SO₄	130	20	46	500 cycles	[40]
NiCo₂P_x	1 M KOH	58	10	34.3	5000 cycles	[41]
	1 M PBS	63	10	63.3	5000 cycles
	0.5 M H₂SO₄	104	10	59.6	5000 cycles
Defect-rich MoS₂	0.5 M H₂SO₄	200	13	50	10,000 s	[42]
CoS₂ NW	0.5 M H₂SO₄	145	10	51.6	3 h	[43]
CoS₂ MW	0.5 M H₂SO₄	158	10	58	41 h
Oxygenated MoS₂	0.5 M H₂SO₄	120	Onset	55	3000 cycles	[44]