Auto-oxidation of exfoliated MoS₂ in N-methyl-2-pyrrolidone: from 2D nanosheets to 3D nanorods

Abstract

There has been a great deal of interest in the electrochemical intercalation of two-dimensional materials in recent years, with studies of transition metal dichalcogenides (TMDs), a so-called “beyond graphene” material,...

Ultrahigh stable laminar graphene membranes for effective ionic and molecular nanofiltration with a machine learning-assisted study

“…The graphene dispersion was prepared by a facile liquid-phase exfoliation. 3,4,7 Briefly, 1 g of graphite powder was sonicated in 100 mL of NMP for 12 h at 25 °C under bath sonication. The sonic wave was set at a frequency of 40 kHz with a power of 300 W during the exfoliation process.…”

“…[3][4][5] As the membrane structure formed from the laminar stacking of 2D nanosheets, capillary channels can be obtained for tunable sieving of ions and molecules. [3][4][5][6][7] Graphene is an attractive 2D nanomaterial because of its exceptional physicochemical properties such as high thermal/ electronic conductivity, stiffness, etc. [7][8][9][10] It has been implemented in a wide variety of applications such as electrode materials for enhanced capacitive properties in energy storage devices, 9,11 composite materials for improved strength and stiffness in surface coating, 12 and laminar formation for enhanced filtration in membrane technology.…”

“…[3][4][5][6][7] Graphene is an attractive 2D nanomaterial because of its exceptional physicochemical properties such as high thermal/ electronic conductivity, stiffness, etc. [7][8][9][10] It has been implemented in a wide variety of applications such as electrode materials for enhanced capacitive properties in energy storage devices, 9,11 composite materials for improved strength and stiffness in surface coating, 12 and laminar formation for enhanced filtration in membrane technology. 3 Graphenebased membranes, especially graphene oxide (GO), have exhibited unique ionic and molecular sieving properties due to the presence of a large number of nanocapillary channels inside the membrane.…”

Transition of electrochemical measurement to machine learning in the perspective of two-dimensional materials

“…For example, the edge site of MoS 2 can be terminated by the oxygen species turning MoS 2 to MoO 3 . This structure could enable larger interlayer spacing, which gives a higher ion intercalation degree than that of MoS 2 (Nualchimplee et al, 2022). From the macro scale, it is no doubt that controlling the structural properties is one of the most interesting parts of the material context.…”

“…Due to the superior properties of those two-dimensional materials, it is obvious that the search for 2D materials was then expanded to the transition metal dichalcogenides (TMDs) family (Bissett et al, 2016), hexagonal boron nitride (also known as "white graphene") (Gautam and Chelliah, 2021), Mxene (Gogotsi and Anasori, 2019), and some heterostructure forming from those original materials (Keerthi et al, 2021). In recent years, 2D materials become central to the most in the context of many electrochemical applications including energy storage (Nualchimplee et al, 2022), electrocatalysts (McAteer et al, 2016), ions selective membrane (Hirunpinyopas et al, 2020) and so on. It is undeniable that the development of the as-mentioned electrochemical applications requires the understanding of fundamentals from a nanoscale using either experiment or the computational-based method.…”