Table 3 HER parameters of MoSx and other literature values
Catalysts | Exchange current density (μA cm−2) | j (mA cm−2) | Overpotential η (mV vs. RHE) j = 10 mA cm−2 | Tafel slop (mV dec−1) |
|---|---|---|---|---|
Amorphous MoSx film (this work) | 1.89 | 21.030 η = 250 mV | 211 | 55 |
Amorphous MoS3 [11] | – | 1.2 ~ 1.0 η = 200 mV | ~ 270 | 41 ~ 63 |
Amorphous MoS3 [13] | – | – | 160 | 40 |
Amorphous MoS3-AE [25] | – | – | ~ 170 mV j = 20 mA cm−2 | – |
Amorphous MoS3-CV film [21] | 0.13 | 0.4 η = 150 mV | 200 j = 14 mA cm−2 | 40 |
Amorphous molybdenum sulfide [23] | – | – | ~ 200 | 53 ~ 65 |
Electrodeposited MoS2 [24] | – | 0.34 η = 200 mV | ~ 440 | 106 |
MoS2 sheet [8] | 200 | – | 104 | 59 |
Double-gyroid MoS2 films [34] | 0.7 | – | ~ 235 | 50 |
MoO3-MoS2 nanowires [35] | – | 20 (iR corrected) η = 270 mV | 320 | 50 ~ 60 |
MoS2.7@NPG [36] | – | – | 210 | 41 |