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: 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: A dual sensory golf ball having two identification layers comprising a first exterior surface identification layer having at least one first identifier and a second clear coat identification layer comprising a polymer and a second identifier wherein the second identifier is an additive comprising an odorant and wherein the second clear coat identification layer is substantially transparent to allow recognition of the first identifier.