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US 12,715,819 B2Granted
Block copolymer porous carbon fibers and uses thereof
AssigneeVirginia Tech Intellectual Properties, Inc.
InventorsGuoliang Liu, Zhengping Zhou
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Abstract
Described herein are porous carbon fibers, methods of making the porous carbon fibers, and methods of using the porous carbon fibers. In some aspects, the porous carbon fibers can have a hierarchical distribution of uniformly distributed meso- and micropores, wherein the micropores and mesopores can be interconnected. In aspects, the porous carbon fibers can have mesopores with a uniform pore size.
Claims20
A porous carbon fiber comprising:
- a carbon matrix;
- and
- mesopores, wherein the mesopores are uniformly distributed throughout the carbon matrix, wherein the mesopores are uniform in size, wherein at least 50% of the mesopores are interconnected;
- and
- micropores, wherein the micropores are distributed throughout the carbon matrix, and wherein at least 50% of the micropores are interconnected with one or more mesopores.
2 more elements
A carbon fiber matrix, wherein the carbon fiber matrix comprises:
- a plurality of porous carbon fibers, wherein each of the carbon fibers in the plurality of porous carbon fibers comprise
- a carbon matrix;
- mesopores, wherein the mesopores are uniformly distributed throughout the carbon matrix, wherein the mesopores are uniform in size, wherein at least 50% of the mesopores are interconnected;
- and
- micropores, wherein the micropores are distributed throughout the carbon matrix, and wherein at least 50% of the micropores are interconnected with one or more mesopores.
2 more elements
A porous carbon fiber comprising:
- mesopores, wherein the mesopores are uniformly distributed throughout the carbon matrix, wherein the mesopores are uniform in size, wherein at least 50% of the mesopores are interconnected;
- and
- micropores, wherein the micropores are distributed throughout the carbon matrix, wherein at least 50% of the micropores are interconnected with one or more mesopores,
- wherein the porous carbon fiber is manufactured from:
- a precursor block co-polymer forming a polymer fiber, wherein the precursor block copolymer comprises at least two different polymers that are capable of microphase separation;
- oxidizing the polymer fiber to form a microphase separated, oxidized, or crosslinked polymer fiber;
- pyrolyzing the microphase separated oxidized or crosslinked polymer fiber to form the porous carbon fiber.
4 more elements
Dependencies are inferred from the claim text.