The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2021
Filed:
Apr. 03, 2019
Nanotek Instruments, Inc., Dayton, OH (US);
Aruna Zhamu, Springboro, OH (US);
Song-Hai Chai, Dayton, OH (US);
Bor Z. Jang, Centerville, OH (US);
Nanotek Instruments Group, LLC, Dayton, OH (US);
Abstract
Provided is a powder mass of multiple porous graphene balls, wherein at least one of the porous graphene balls comprises multiple graphene sheets having a catalyst, in a form of nanoparticles or coating having a diameter or thickness from 0.3 nm to 10 nm, bonded to or supported by graphene sheet surfaces, wherein the porous graphene balls have a density from 0.01 to 1.7 g/cm(preferably and typically from 0.1 to 1.5 g/cm), and a specific surface area from 50 to 3,000 m/g (preferably and typically from 200 to 2,630 m/g). A method of producing such porous graphene balls is provided as well. Also provided is a gas storage device containing the invented powder mass as a gas-absorbing, gas-adsorbing, gas-capturing, or gas-storing medium to store a gas species therein.