Table 1 MWCNT Characteristics
MWCNT form | Mean Diameter (nm) | Length Range (μm) | Raman Band ratio (R)=I D/I G | Metal Ash Content by TGA (% weight) | Energy Dispersive spectra based concentrations | Surface area (m 2/g) | Pore volume (cm 3/g) |
|---|---|---|---|---|---|---|---|
C-grade | 22.5 ± 1.3 | 10 - 100 | 0.29 | 4.80 | C = 99.6 N = 0.0 O = 0.0 Fe = 0.04 | 113.10 | 0.69 |
COOH | 19.1 ± 1.6 | 40 - 100 | 0.35 | 5.15 | C = 96.5 N = 0.0 O = 3.5 Fe = 0.07 | 111.39 | 0.60 |
N-doped | 23.3 ± 1.5 | 50 - 80 | 0.93 | 3.68 | C = 80.8 N = 19.2 O = 0.0 Fe = 0.04 | 140.15 | 0.93 |