Table 1.
The specific surface area, pore size, and elemental composition of GCN-B and GCNs that recalcined at different temperatures.
| Sample | d-Spacing (Å) | SBET (m2/g) | Pore Size (nm) | Pore Volume(cm3/g) | Elemental Composition | C/N Ratio | Yield Remained after Recalcination (%) | ||
|---|---|---|---|---|---|---|---|---|---|
| (002) | (100) | C (wt%) | N (wt%) | ||||||
| GCN-B | 3.244 | 6.783 | 30.20 | 3.68 | 0.083 | 35.10 | 51.53 | 0.681 | 100 |
| GCN-450 | 3.220 | 6.781 | 79.96 | 3.49 | 0.144 | 35.68 | 50.33 | 0.708 | 73 |
| GCN-500 | 3.194 | 6.782 | 117.05 | 3.59 | 0.210 | 37.71 | 52.38 | 0.720 | 45 |
| GCN-550 | 3.188 | 6.781 | 158.57 | 3.63 | 0.228 | 38.76 | 47.87 | 0.809 | 18 |