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US 12,378,699 B2Granted
Method and system for production of porous graphitic carbon materials embedded with active components
AssigneeThe Regents of the University of California
InventorsDavid Kisailus, Hongjie Tang
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Abstract
A method is disclosed for producing carbon fibers with active components such as those for oxygen reduction reactions (ORR). The method includes electrospinning a solution of polyacrylonitrile (PAN) and a transition metal into composite fibers; and annealing the composite fibers in an inert/reducing atmosphere.
Claims15
A nanocomposite comprising:
- one-dimensional porous nitrogen doped graphitic carbon fibers embedded with oxygen reduction reaction (ORR) components, the ORR components being surrounded by graphitic nanorings, and wherein the ORR components are nickel (Ni) nanoparticles and wherein the graphitic nanorings are concentric graphitic nanorings consisting of 10 graphene layers to 40 graphene layers.
A nanocomposite comprising:
- one-dimensional porous nitrogen doped graphitic carbon fibers embedded with oxygen reduction reaction (ORR) components, the ORR components being surrounded by fullerene-form graphitic walls, and wherein the ORR components are nickel (Ni) nanoparticles and wherein the fullerene-form graphitic walls range between 10 graphene layers to 40 graphene layers.
Dependencies are inferred from the claim text.