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. 21, 2025
Filed:
Feb. 09, 2021
Univerzita Palackeho V Olomouci, Olomouc, CZ;
Michal Otyepka, Olomouc, CZ;
Ariesteidis Bakandritsos, Olomouc, CZ;
Veronika Sedajova, Mestecko Trnavka, CZ;
Petr Jakubec, Olomouc, CZ;
UNIVERZITA PALACKEHO V OLOMOUCI, Olomouc, CZ;
Abstract
A method is disclosed for preparation of nitrogen-doped graphene having these steps: a) providing a dispersion of fluorinated graphite; b) subjecting the dispersion of fluorinated graphite to sonication and/or mechanical treatment and/or thermal treatment; c) contacting the product from step b) with an azide reagent at a temperature within the range of 40 to 200° C.; d) separating the solid product formed in step c) from the mixture; e) dialyzing the product obtained in step d) against water. A nitrogen-doped graphene containing at least 8.9 at. % of nitrogen and up to 16.6 at. % of fluorine is yielded, wherein the at. % are relative to the total atoms present in the sample and determined by X-ray photoelectron spectroscopy (XPS) using an Al-Kα source; and having a density above 1.2 g/cm3 when pressed at 80 kN for 1 min. This nitrogen-doped graphene is particularly useful as a supercapacitor material.