Intercalated thin films and methods for their preparation and use
Methods for making an intercalated layered film, intercalated layered films, and devices that include the intercalated layered films. In the method, in a first step, a suspension of a dispersed two-dimensional compound in a fluid is filtered through a filtration medium to provide a layered film of the two-dimensional compound on the filtration medium, and in a second step, filtering a solution of an intercalant in a solvent through the layered film of the two-dimensional compound on the filtration medium to provide the intercalated layered film.
1 . A method of making an intercalated layered film, comprising:
filtering a suspension of a dispersed two-dimensional compound in a fluid through a filtration medium to provide a layered film of the two-dimensional compound on the filtration medium; and
filtering a solution of an intercalant in a solvent through the layered film of the two-dimensional compound on the filtration medium to provide the intercalated layered film.
2 . The method of claim 1 , wherein the dispersed two-dimensional compound comprises a transition metal dichalcogenide, graphene or related group XIV 2D materials, boron nitride, a MXene, graphene oxide, phosphorene or related group XV 2D materials, MBenes, or any combination thereof.
3 . The method of claim 1 , wherein the dispersed two-dimensional compound comprises a transition metal dichalcogenide.
4 . The method of claim 3 , wherein the transition metal dichalcogenide comprises a formula ME 2 , wherein:
M comprises an element of group IV, V, or VI, and
E comprises S, Se, Te, and any combination thereof.
5 . The method of claim 2 , wherein the suspension of the dispersed two-dimensional compound comprises a two-dimensional compound prepared by exfoliation.
6 . The method of claim 1 , wherein layered film of the two-dimensional compound on the filtration medium comprises a monolayer or a multilayer of the two-dimensional compound.
7 . The method of claim 1 , wherein the filtration medium is a filtration membrane.
8 . The method of claim 7 , wherein the filtration membrane is selected from the group consisting of a nitrocellulose membrane, a cellulose acetate membrane, a cellulose nitrate membrane, a polyamide (nylon) membrane, a polycarbonate membrane, a polypropylene membrane, a polyether sulfone membrane, a polyvinyl chloride membrane, a polyvinylidene fluoride membrane, and a polytetrafluoroethylene membrane.
9 . The method of claim 1 , wherein the intercalant comprises an organometallic compound, a cationic compound, a nucleophilic organic compound, a non-nucleophilic organic compound, a molecular cluster compound, a nanoparticle, or any combination thereof.
10 . The method of claim 1 , wherein the intercalant is an electron-proton transfer mediator.
11 . The method of claim 10 , wherein the electron-proton transfer mediator is a ferrocene, a phenazine, or a benzoquinone.
12 . A method of making an intercalated layered film, comprising:
filtering a suspension of a dispersed two-dimensional compound in a fluid through a filtration medium to provide a layered film of the two-dimensional compound on the filtration medium; and
filtering a solution of an electron-proton transfer mediator in a solvent through the layered film of the two-dimensional compound on the filtration medium to provide an intercalated layered film having an electron-proton transfer mediator as an intercalant.
13 . The method of claim 12 , wherein the electron-proton transfer mediator is a ferrocene, a phenazine, or a benzoquinone.