Furthermore, interlayer-expanded MoS2 samples were also synthesized by the one-pot hydrothermal approach. In this case, 1,6-hexanediamine (HDA), 1,8-octyldiamine (ODA) or 1,12-diaminododecane (DDDA) (all Thermo Fisher Scientific) were introduced to the precursor solution described in the previous section. The quantity of HDA/ODA/DDDA added was determined based on a molar ratio of 1:x between diamine and MoS2, where x was either 1 or 0.5. Post addition of diamine, the pH of the hydrothermal solution was adjusted to pH 1. The synthesis conditions and methodology for the powder remained consistent with those employed for the pristine materials, with the exception of the synthesis temperature, which was set at 180 °C.