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US 11,858,816 B2Granted
Dendritic materials with hierarchical porosity
AssigneeBoard of Regents, The University of Texas System
InventorsWeigu Li, Donglei Fan
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Abstract
Disclosed herein are dendritically porous three-dimensional structures, including hierarchical dendritically porous three-dimensional structures. The structures include metal foams and graphite structures, and are useful in energy storage devices as well as chemical catalysis.
Claims19
A method of making a dendritically porous three-dimensional graphite foam comprising:
- (a) placing a conductive substrate in an electrolyte solution, wherein the electrolyte solution is in electrical communication with an electrode;
- (b) applying an electric current via the electrode sufficient to grow metal dendrites on the surface of the conductive substrate;
- (c) annealing the metal dendrites and conductive substrate;
- (d) depositing carbon upon the annealed metal dendrites and the conductive substrate;
- (e) removing the annealed metal dendrites and conductive substrate to obtain a three-dimensional graphite foam comprising porous graphite dendrites radiating from a porous core.
2 more elements
Dependencies are inferred from the claim text.