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:
May. 17, 2022
Filed:
Jun. 21, 2020
NM Devices Llc, Las Cruces, NM (US);
General Graphene Corporation, Knoxville, TN (US);
Pavan Chaturvedi, Las Cruces, NM (US);
Dhanraj Shinde, Las Cruces, NM (US);
Sergei Smirnov, Las Cruces, NM (US);
Ivan Vlassiouk, Oak Ridge, TN (US);
Pavan Chaturvedi, Las Cruces, NM (US);
Dhanraj Shinde, Las Cruces, NM (US);
NM DEVICES LLC, Las Cruces, NM (US);
GENERAL GRAPHENE CORPORATION, Knoxville, TN (US);
PAVAN CHATURVEDI, Las Cruces, NM (US);
Abstract
Proton conductive membrane includes a proton selective layer of 80-100% carbon with sp2 hybridization having a thickness of 0.3-100 nm, with 0-20% of hydrogen, oxygen, nitrogen and sp3 carbon; wherein the sp2 carbon is in a form of graphene-like material; the proton selective layer having a plurality of pores formed by any of 7, 8, 9 or 10 sp2 carbon cycles or a combination thereof, with the pores having an effective diameter of up to 0.6 nm; an ionomeric polymer layer on the proton selective layer. Total thickness of the proton conductive membrane is less than 50 microns. The ionomeric polymer is PFSA (perfluorinated sulfonic acid), PVP (polyvinylpyrrolidone) or PVA (poly vinyl alcohol) with iodide or bromide counterion dissolved inside. The graphene-like material is CVD graphene or reduced graphene oxide (rGO). A D to G Raman band ratio of the membrane is more than 0.1.