Abstract:
A cathode material including a nanostructured graphene-incorporated iron oxyfluoride-based (FeOF) composite material (FeOF/G). The FeOF/G composite cathode material may have superfast charging rates, high specific capacity/energy, and enhanced cycle life.
Abstract:
A method for synthesizing a graphene-polyaniline hybrid composite, including oxidatively exfoliating natural graphite flakes to yield a graphene body, functionalizing the surface of a graphene substrate with aniline group, s wherein the surface of the graphene body is functionalized with aniline groups via a diazonium reaction, and polymerizing the aniline groups, wherein covalently-grafted polyaniline-graphene nanocomposites are formed by in- situ polymerization of aniline in the presence of aniline-functionalized graphene oxide, an oxidant, and an acid dopant.
Abstract:
A catalyst comprising a functionalized substrate having a first charged functional group, a metal dispersed on the substrate, wherein the metal comprises at least one of Pt, Rh, Pd, Ag, Au, Ni, Os, Ir, Mn, Co, alloys thereof, oxides thereof, or mixtures thereof, and an ionomer are disclosed. Methods manufacturing a functionalized catalyst comprising catalyzing a substrate with a metal, functionalizing the catalyzed substrate with a first charged functional group, and add an ionomer to the loaded functionalized catalyst are also disclosed. Also, methods comprising catalyzing a substrate with a metal, functionalizing the substrate with a first charged functional group, and adding an ionomer to the loaded functionalized catalyst are disclosed.
Abstract:
A cathode material including a nanostructured graphene-incorporated iron oxyfluoride-based (FeOF) composite material (FeOF/G). The FeOF/G composite cathode material may have superfast charging rates, high specific capacity/energy, and enhanced cycle life.
Abstract:
A method for producing a graphene-composite material, including removing any oxide layer from each of a plurality of silicon nanoparticles, forming a polyaniline layer over each clean silicon nanoparticle, binding a graphene oxide sheet to the polyaniline layer of each particle, and carbonizing the polyaniline to yield a plurality of composite particles. Each composite particle has a graphene outer layer substantially encapsulating a silicon inner core.
Abstract:
A carbon composite material, including a plurality of spaced graphene sheets, each respective sheet having opposed generally planar surfaces, and a plurality of functionalized carbonaceous particles. At least some functionalized carbonaceous particles are disposed between any two adjacent graphene sheets, and each respective at least some functionalized carbonaceous particle is attached to both respective any two adjacent graphene sheets. Each respective graphene sheet comprises at least one layer of graphene and at least portions of respective any two adjacent graphene sheets are oriented substantially parallel with one another.
Abstract:
Provided are methods for enhancing adsorption of molecules, and particularly essentially non-polar molecules, such as hydrogen and hydrocarbons, as well as methods of storing and releasing such molecules from an adsorbent. Also provided are storage units for the storage and release of such molecules.