Abstract: An electrode, comprising: a portion of MXene, the portion of MXene optionally being free of materials other than the MXene; and (a) a sealing material, the sealing material at least partially enclosing the portion of MXene, and the sealing material defining an opening through which a sensing region of the portion of MXene is exposed; or (b) a substrate, the portion of MXene being disposed on the substrate. An electrode, comprising: a fiber; a first coating superposed on the fiber, the first coating having a thickness and comprising a MXene composition, the MXene composition optionally comprising aligned MXene flakes, the first coating optionally having a uniform thickness along the length of the fiber; and a second coating superposed on the fiber.

Abstract: This disclosure is directed to composites comprising a polymeric film coated on one or both sides with a MXene material, as well as lithium metal electrodes and components thereof, including MXene-polymer composite separators.

Abstract: Provided are sensors comprising one or both of MXene-coated fibers and MXene-coated yarns.

Abstract: An energy storage cell, comprising: a layer comprising a plurality of fibers, the plurality of fibers having a MXene material disposed thereon; an electrolyte disposed on the layer; a first conductor in electronic communication with the electrolyte; and a second conductor in electronic communication with the electrolyte. Energy storage devices, the energy storage device comprising at least one energy storage cell according to the present disclosure. A method, comprising the use of an energy storage device according to the present disclosure.

Abstract: The present disclosure is directed to freestanding films for a lithium-metal-anode comprising a 2D arrays of nanocrystals of a transition metal nitride, carbide, or mixture and optionally a MXene as a conductive binder, and methods of making and using the same.

Abstract: A method, comprising: forming a porous MAX-phase material. A MAX-phase material, the MAX-phase material made according to the present disclosure. A MXene material, the MXene material formed by removal of the A-group element of a MAX-phase material made according to the present disclosure.

Abstract: Provided is a method, comprising: providing a solution of delaminated MXene material and a first ionic intercalant; and contacting the solution with a second ionic intercalant so as to exchange the first ionic intercalant and the second ionic intercalant so as to give rise to flocculated portions of the MXene material and a supernatant that comprises the first ionic intercalant and the second ionic intercalant. Also provided is a MXene dispersion, comprising a plurality of portions of single-layer and/or few-layer MXene dispersed in a solvent, the solvent comprising a first ionic intercalant and a second ionic intercalant. Also provided is a stable MXene dispersion, comprising a plurality of portions of single-layer and/or few-layer MXene dispersed in a solvent, the solvent comprising an ionic intercalant, the ionic intercalant optionally being present in supersaturated form.

Abstract: The present disclosure is directed to antennas for transmitting and/or receiving electrical signals comprising a MXene composition, devices comprising these antennas, and methods of transmitting and receiving signals using these antennas.

Abstract: The present invention(s) is directed to novel conductive Mn+1Xn(Ts) compositions exhibiting high volumetric capacitances, and methods of making the same. The present invention(s) is also directed to novel conductive Mn+1Xn(Ts) compositions, methods of preparing transparent conductors using these materials, and products derived from these methods.

Abstract: The present disclosure is directed to nanocomposites comprising a co-sintered composition of a MXene crystal form composition and an inorganic oxide, or oxide-type ceramic and methods of making and using the same.

Abstract: The present disclosure describes electrochromic devices comprising transparent conductive layer acting as an electrode, an active electrochromic film, an ion conductor, and an ion storage film at least one of which comprises at least one MXene material.

Abstract: Provided are sensors comprising one or both of MXene-coated fibers and MXene-coated yarns.

Abstract: Provided are ophthalmic components (e.g., eyeglass lenses and contact lenses) that include a two dimensional crystalline solid material dispersed in a matrix material. The disclosed components can selectively filter light of selected wavelengths, thereby making the components suitable for use by individuals who may suffer from color vision deficiency conditions. The two dimensional crystalline solid material comprises at least one layer comprising a substantially two-dimensional array of crystal cells; each crystal cell having an empirical formula of M(n+1)X(n), such that each X is positioned within an array of M, wherein M is at least one Group IIIB, IVB, VB, VIB or VIIB metal, and wherein X is C and/or N.

Abstract: The present disclosure is directed to materials which provide electromagnetic shielding and methods of providing such electromagnetic shielding. In particular, the present disclosure describes the use of two-dimensional transition metal carbide, nitride, and carbonitride materials for this purpose.

Abstract: One aspect of the invention provides a method for reducing inflammation in a patient including locally administering a composition comprising a complex comprising octadecylamine surface-functionalized nanodiamonds with dexamethasone bound to octadecylamine. Another aspect of the invention provides a method for reducing inflammation in a patient comprising locally administering a composition including octadecylamine surface-functionalized nanodiamonds, wherein no therapeutic agent is bound to the nanodiamonds.

Abstract: A two-dimensional particle including: one or plural layers, the one or plural layers having a layer body represented by: MmXn, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, m is more than n but not more than 5, and a modifier or terminal T existing on a surface of the layer body, wherein T is at least one selected from a hydroxyl group, an amine group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom and a hydrogen atom; a metal cation is at least one cation selected from Na and K, and a content of Li in the two-dimensional particle is less than 0.002% by mass.

Abstract: In an aspect, the present disclosure provides a heat-treated transition metal carbonitride MXene film annealed at high temperatures and a polymer composite comprising the same. In another aspect, the present disclosure provides a method for producing a heat-treated transition metal carbonitride MXene film comprising: obtaining a MXene aqueous solution containing dispersed 2-dimensional (2D) MXenes through an acid etching process; filtering the obtained MXene aqueous solution through a vacuum filtration process to produce a free-standing film; and annealing the produced free-standing film at high temperatures to obtain a heat-treated transition metal carbonitride MXene film. In still another aspect, the present disclosure provides an electromagnetic interference (EMI) shielding method comprising: superposing a coating comprising a heat-treated transition metal carbonitride MXene film on at least one surface of an object in a contact or non-contact manner.

Abstract: The present invention(s) is directed to novel conductive Mn+1Xn(Ts) compositions exhibiting high volumetric capacitances, and methods of making the same. The present invention(s) is also directed to novel conductive Mn+1Xn(Ts) compositions, methods of preparing transparent conductors using these materials, and products derived from these methods.

Abstract: The present disclosure is directed to antennas for transmitting and/or receiving electrical signals comprising a MXene composition, devices comprising these antennas, and methods of transmitting and receiving signals using these antennas.

Abstract: An electrode, the electrode including an exposed contact surface, the exposed surface comprising a contact material, the contact material comprising a MXene. A device, the device including a plurality of electrodes, each of the plurality of electrodes comprising an exposed contact surface, the exposed surface comprising a contact material, the contact material comprising a MXene. A method, the method including delivering electrical stimulation to a subject with an electrode that comprises an exposed contact surface, the exposed contact surface comprising a contact material that includes a MXene.