Table 1
Information and suppliers’ names of materials used in this work.
| Material | Chemical formula | Supplier | Purity |
|---|---|---|---|
| Methane | CH4 | Air product | 0.9995 (mole fraction) |
| TetraButylAmmonium Bromide (TBAB) | (CH3CH2CH2CH2)4N(Br) | Merck | ≥0.9900 (mass fraction) |
| TetraButylAmmonium Acetate (TBAA) | (CH3CH2CH2CH2)4N(OCOCH3) | Sigma–Aldrich | 0.9700 (mass fraction) |