Table 2. List of analyzed MoS₂ samples, their mass used in the experiment, N₂ specific surface area (SSA), formula (from XPS), content of oxygen (from XPS), arithmetic diameter from laser diffraction (D), content of the 2H phase, OP is the overpotential, TS is the Tafel slope, PS is peak separation and pECD is –log₁₀ of exchange current density (in mA cm^–2).

Sample	Label	Mass, mg	SSA, m2 g–1	MoSx a	MoOx	D, μm	2H cont., %	OP, V	TS, mV dec–1	PS, mV	pECD
Acros Organics	AO	105.8	6.30 a	2.11 a	0.31	4 a	100 a	0.587 a	132 a	98	1.951
Aldrich	A	57.8	10.37 a	2.24 a	0.26	3 a	100 a	0.603 a	149 a	81	1.920
Alfa Aesar	AA	196.5	3.64 a	2.41 a	0.13	24 a	58 a	0.690 a	173 a	65	3.473
Chempur	CH	128.9	4.81 a	2.33 a		6 a	100 a	0.725 a	161 a	101	3.884
Natural	N	390.5	1.25 a	2.29 a	0.12	44 a	100 a	0.660 a	171 a	124	3.016
Riedel de Haën	RdH	395.5	1.57 a	2.49 a	0.22	15 a	57 a	0.779 a	163 a	120	4.369
Schuchard	S	121.2	3.93 a	2.24 a	0.47	5 a	62 a	0.664 a	152 a	105	3.108
Strem	Str	182.8	3.28	2.18	0.15	24	100	0.714	172	103	3.294
NaNAFT	NaNAFT	37.2	11.5	2.03	1.73		100	0.467	84	97	2.949
BuLi	BuLi	79.3	6.86	2.10	0.49		100	0.618	150	93	1.974

^aAdopted from ref. 13.