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:
Feb. 26, 2019
Filed:
Dec. 21, 2016
Regents of the University of Minnesota, Minneapolis, MN (US);
Michael Tsapatsis, Edina, MN (US);
Qiang Xiao, Minneapolis, MN (US);
Han Zhang, Minneapolis, MN (US);
Regents of the University of Minnesota, Minneapolis, MN (US);
Abstract
Methods for forming two-dimensional (2D) zeolite nanosheets include exposing a multi-lamellar (ML) zeolite material including an organic structure directing agent (OSDA) to a mixture including sulfuric acid and hydrogen peroxide under conditions sufficient to remove substantially all of the OSDA from the ML zeolite material; and after exposing the ML zeolite material, treating a solution containing the ML zeolite material to sonication and/or mixing under conditions sufficient to substantially exfoliate layers of the ML zeolite to obtain porous two-dimensional zeolite nanosheets that are substantially free of the OSDA. In some cases, without further treatment such as secondary growth of the zeolite coating layer, a deposit of the OSDA-free nanosheets on polymer support exhibits hydrocarbon isomer selectivity.