Table 1. Summary of pyrolyzed TMD aerogel composite properties.
Property | Aerogel sample |
||||
---|---|---|---|---|---|
MoS217 mg mL−1 | WS28.6 mg mL−1 | WS217 mg mL−1 | WS234 mg mL−1 | No loading | |
TMD Mole % | 6.70% | 2.30% | 4.40% | 8.40% | 0.00% |
XRD crystallite Thickness (nm)* | 64 | 99 | 104 | 95 | — |
BET surface area (m2 g−1) | 408 | 500 | 620 | 514 | 776 |
Gravimetric capacitance (F g−1)† | 84.5 | 60.3 | 56.2 | 64.7 | 87.5 |
Volumetric capacitance (F cm−3) | 52.5 | 54.2 | 50.9 | 59.8 | 26.3 |
Molar capacitance (F mol−1) | 1650 | 970 | 1110 | 1760 | 1060 |
Equivalent series resistance RESR (Ω) | 0.76 | 0.60 | 0.68 | 0.56 | 0.60 |
Charge transfer resistance RCT (Ω) | 21 | 2.6 | 3.9 | 5.7 | 5.7 |
Knee frequency fk (Hz) | 4 | 54 | 28 | 20 | 14 |
in the (002) plane.
Capacitance values from galvanostatic discharge profile at lowest tested current density.