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US 12,633,521 B2Granted
Silicon nanoparticles and methods for preparing silicon nanoparticles
AssigneeAspen Aerogels, Inc.
InventorsWei Xie, Zhifei Li, Roxana Trifu, Harris Miller
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Abstract
Silicon nanoparticles and methods for preparation of silicon nanoparticles are provided. Embodiments include a method for grinding silicon. Methods include providing silicon material, providing a grinding liquid including a polar solvent, and grinding the silicon material in the presence of the grinding liquid to yield silicon nanoparticles. Grinding the silicon in the presence of the grinding liquid can chemically functionalize the silicon material as the nanoparticles are formed to provide stable chemically functionalized nanoparticles.
Claims22
A composition comprising:
- silicon particles having a diameter of between 50 nm and 500 nm, wherein a surface of the silicon particles includes bonded functional groups;
- a porous three-dimensional network comprising a carbon aerogel or a carbon xerogel, wherein the silicon particles are dispersed throughout the porous three-dimensional network;
- and
- wherein the bonded functional groups include at least one of —OH, —COOH, —C—O—C—, —NH2, —NHR, or combinations thereof.
1 more element
A composition comprising:
- silicon particles having a diameter of between 50 nm and 500 nm, wherein a surface of the silicon particles includes bonded functional groups;
- a porous three-dimensional network comprising a carbon aerogel or a carbon xerogel, wherein the silicon particles are dispersed throughout the porous three-dimensional network;
- and
- wherein the bonded functional groups are selected from the group consisting of isopropanol, ethylene glycol methyl ether methacrylate, polyethylene glycol methyl ether methacrylate, unsaturated glycol, hydroxide groups, allylamine, vinyl benzyl amine hydrochloride, and aminoethyl methacrylate hydrochloride.
1 more element
Dependencies are inferred from the claim text.