{"title":"Intercalation \u0026 Exfoliation","description":"\u003cp\u003e\u003cstrong\u003eIntercalation and exfoliation are the twin levers researchers pull on layered solids to tune ion transport, expand interlayer spacing, and isolate two-dimensional sheets for downstream electrochemistry.\u003c\/strong\u003e Both phenomena exploit the same structural feature — weak van der Waals or electrostatic coupling between covalently bonded layers — but they answer different questions in a battery, supercapacitor, or catalysis workflow.\u003c\/p\u003e\n\n\u003cp\u003eIntercalation is the reversible insertion of guest species (Li+, Na+, K+, Mg2+, Zn2+, NH4+, solvated ions, or neutral molecules) into a host lattice without breaking the in-plane bonding. It underpins how graphite anodes, layered oxide cathodes such as NCM, vanadium and manganese oxide bronzes, MXenes, and transition-metal dichalcogenides store charge. Diagnostic techniques include operando XRD to track interlayer expansion, GITT and PITT for diffusion coefficients, in-situ Raman, dilatometry, and electrochemical staging analysis.\u003c\/p\u003e\n\n\u003cp\u003eExfoliation pushes the same chemistry further: by intercalating bulky cations (alkylammonium, lithium-amine adducts) or by selectively etching a sacrificial layer, researchers separate the host into single- or few-layer sheets. Common routes are liquid-phase shear and sonication exfoliation of graphite and h-BN, electrochemical exfoliation in aqueous or organic electrolytes, and selective HF or fluoride-salt etching of MAX phases to yield Ti3C2Tx and related MXenes. Layered double hydroxides, montmorillonite clays, transition-metal dichalcogenides (MoS2, WS2), and black phosphorus are also routinely delaminated for catalysis, sensing, and composite electrodes.\u003c\/p\u003e\n\n\u003cp\u003eMaterials and equipment that support this work — graphite and graphene precursors, layered oxides and dichalcogenides, MXene precursors, electrolyte salts and solvents for guest-ion studies, two-electrode and three-electrode cells, and surface-area \/ porosimetry instruments — are distributed across the rest of the catalog rather than gathered here.\u003c\/p\u003e\n\n\u003cp\u003eIf you are starting a Li-ion or post-Li intercalation study, browse cathode materials and anode materials; for sheet-isolation work, see 2D materials and \u003ca href=\"\/collections\/electrolytes\"\u003eelectrolytes\u003c\/a\u003e.\u003c\/p\u003e\n","products":[],"url":"https:\/\/echemsupplies.com\/collections\/intercalation-and-exfoliation.oembed","provider":"EChem Supplies","version":"1.0","type":"link"}