Table 1. Adsorption enthalpies ΔHad of selected molecules on BP and graphene (G) measured by iGC (over the reported temperature range) and adsorption enthalpies of single molecules on a BP surface estimated from DFT calculations.
| Molecule | Exp. ΔHad on BP [kcal mol–1] | Temp. range [°C] | Calc. ΔHad on BP [kcal mol–1] | Exp. ΔHad on G a [kcal mol–1] |
| 1,4-Dioxane | –11.7 ± 0.6 | 30–90 | –12.1 | –10.8 ± 0.1 |
| Benzene | –11.9 ± 0.1 | 30–90 | –12.2 | –11.9 ± 0.3 |
| Cyclohexane | –11.2 ± 0.6 | 30–90 | –10.5 | –11.4 ± 0.3 |
| Acetone | –12.1 ± 0.2 | 40–90 | –9.3 | –8.2 ± 0.3 |
| Acetonitrile | –10.9 ± 0.1 | 40–90 | –7.2 | –7.6 ± 0.3 |
| Nitromethane | –10.3 ± 0.3 | 30–90 | –7.3 | –6.3 ± 0.1 |
| Tetrachloromethane | –8.2 ± 0.8 | 30–90 | –8.6 |
aiGC-determined values on graphene taken from ref. 30 and 47.