Electrochemical characterization of Molybdenum disulfide (MoS₂) membranes for the energy transition

Molybdenum disulfide (MoS₂) is a transition metal dichalcogenide with unique physical, chemical and electronic properties, making it a significant material in nanotechnology, electronics and catalysis. Its structure enables MoS₂ to be exfoliated into monolayers with high surface area, flexibility and distinct electronic characteristics. Due to its high chemical stability, mechanical strength and semiconducting properties, MoS₂ is widely explored for many applications. This work will focus on the potential of MoS₂ as a 2D active material for membranes applied in water purification and as electrodes for supercapacitors. The aim was to obtain a free-standing membrane and characterize it, also investigating the possibility of accelerating the hydrothermal reaction with microwaves and the use of binders such as carboxymethylcellulose (CMC), hydroxypropylcellulose (HPC), polyvinylidene fluoride (PVDF) and graphene oxide (GO) for a composite membrane. A free-standing membrane was prepared with 2D MoS₂ synthesized via hydrothermal reaction and mixed with GO (with a MoS₂/GO ratio of 2:1) to promote mechanical stability, then filtered by vacuum filtration and characterized as a free-standing membrane for permselectivity of different ions, XRD, FESEM and as an electrode in cells.