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 methods for scrubbing low levels of urea from aqueous solutions such as a dialysate from dialysis, and including blood and blood products, and devices capable of employing these methods.

Abstract: An aligned film having first and second faces opposed to each other, the aligned film having (a) a plurality of layers aligned non-parallel to the first and second faces between the faces of the aligned film, each layer having a crystal lattice represented by: Mn+1Xn (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; and n is 1, 2, or 3), each X is positioned within an octahedral array of M, and at least one of two opposing surfaces of each said layer have at least one modifier or terminal T selected from a hydroxy group, a fluorine atom, an oxygen atom, and a hydrogen atom; and (b) magnetic nanoparticles carried on a layer surface and/or between two adjacent layers of the plurality of layers.

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 methods for scrubbing low levels of urea from aqueous solutions such as a dialysate from dialysis, and including blood and blood products, and devices capable of employing these methods.

Abstract: The present disclosure relates to the methods of preparing two-dimensional arrays of nanocrystalline metal carbide and metal nitride compositions and the compositions and devices derived from these methods and compositions.

Abstract: Provided are textiles comprising one or both of MXene-coated fibers and MXene-coated yarns. The textiles are conductive, electroactive, and the fibers and yarns exhibit favorable mechanical and electrical properties, and can be incorporated into a variety of devices and uses.

Abstract: Provided are sensors comprising one or both of MXene-coated fibers and MXene-coated yarns. The MXene-coated yarns can be utilized for various types of smart textile applications where conductivity is required. These include but are not limited to sensors (e.g. pressure, strain, moisture, and temperature), supercapacitors, triboelectric generators, antennas, and electromagnetic interference (EMI) shielding textiles.

Abstract: An electromagnetic shielding material that includes a plurality of layers, each layer having a crystal lattice represented by: Mn+1Xn (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; and n is 1, 2, or 3), each X is positioned within an octahedral array of M, and at least one of two opposing surfaces of said each layer has at least one modifier or terminal T selected from a hydroxy group, a fluorine atom, an oxygen atom, and a hydrogen atom; and dielectric and/or magnetic nanoparticles carried on a layer surface and/or between two adjacent layers of the plurality of layers.

Abstract: The present disclosure is directed to methods of removing proteins, including cytokines, from blood and blood products, the methods comprising contacting the blood or blood product with a form of carbon having high graphitic contents and slit-shaped mesopores and macropores, the pore size dimensions chosen to be comparable to the size of the proteins, wherein the contacting results in the removal of high levels of the protein from the blood or blood product in minutes or hours.

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: The present disclosure is directed to methods of removing proteins, including cytokines, from blood and blood products, the methods comprising contacting the blood or blood product with a form of carbon having high graphitic contents and slit-shaped mesopores and macropores, the pore size dimensions chosen to be comparable to the size of the proteins, wherein the contacting results in the removal of high levels of the protein from the blood or blood product in minutes or hours.

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 disclosure is directed to electroacoustical devices comprising patterned MXene compositions on biaxially oriented polymer substrates and methods of making and using the same.

Abstract: An electrochemical capacitor having an electrolytic solution that is a mixed solution of lithium bis(trifluoromethanesulfonyl)imide (Li-TFSI) and propylene carbonate (PC), a mixed solution of lithium borofluoride and PC, a mixed solution of Li-TFSI, ethylene carbonate, and diethyl carbonate, a mixed solution of Li-TFSI and ethyl isopropyl sulfone, or a mixed solution of Na-TFSI and PC; a cathode in the electrolytic solution, the cathode being a layered material having multiple layers, each layer having a crystal lattice represented by Mn+1Xn, where M is a metal of Group 3 to 7, X is a carbon/nitrogen atom, n is 1, 2 or 3, X is positioned within an octahedral array of M, and having a modifier T of a hydroxyl group or a fluorine/oxygen/hydrogen atom on the surface of each layer; and an anode in the electrolytic solution and separated from the cathode, the anode being a carbon-based material.

Abstract: A garment includes a supercapacitor and/or heated fabrics including a first conductive yarn knitted to as to form a current collector and a second conductive yarn knitted to as to form an electrode that is in electrical contact with the current collector. The conductive yarns are knitted into a predetermined supercapacitor design having respective electrodes that are not in electrical contact with each other. An electrolyte saturates at least the electrode material either before or after knitting, and an ionically permeable electronic separator allows the electrodes to be in close proximity to each other without being in electrical contact with each other. A heating element may also be formed by knitting at least one of the first and second conductive yarns into a linear resistor or by knitting an insulated conductive yarn into a sheet of fabric. Such a heating element is connected to the supercapacitor via a switch.

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: This invention relates to a chemiresistor gas sensor using MXene and a method of manufacturing the same, wherein the chemiresistor gas sensor, manufactured in a manner in which a Ti3C2Tx MXene thin film is formed and transferred onto a sensor substrate, can exhibit good response and sensitivity.

Abstract: Provided are electrodes that comprise MXene materials as well as related methods of using the disclosure electrodes in neural and other monitoring applications.

Abstract: Battery electrolytes comprising: (a) a solvent suitable for use in a battery electrolyte such as an organic liquid solvent or an ionic liquid; (b) a lithium ion or sodium ion salt suitable for use in a battery electrolyte; and (c) a dispersion of nanoparticles of carbon, metal or metalloid oxides or hydroxides, carbides, nitrides, sulfides, graphene or MXene particles; or a combination thereof. The present invention is also directed to battery cells and batteries comprising these electrolytes and devices comprising these battery cells and batteries.