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:
Apr. 20, 2021
Filed:
Jul. 20, 2018
University of Kansas, Lawrence, KS (US);
Trung Van Nguyen, Lawrence, KS (US);
Regis P. Dowd, Jr., Lone Jack, MO (US);
UNIVERSITY OF KANSAS, Lawrence, KS (US);
Abstract
In embodiments, a method of forming a membrane electrode assembly comprises pressing a stack comprising a cathode, an anode, a proton exchange membrane between the cathode and the anode, and a porous catalyst layer in contact with the proton exchange membrane, the porous catalyst layer comprising an ionomer, the ionomer coating internal surfaces of pores of the porous catalyst layer, thereby providing internal ionomer-gas interfaces within the porous catalyst layer; for a time, a pressure, and a temperature to bind the ionomer to the proton exchange membrane, whereby steam is generated within the porous catalyst layer. The steam is removed via pores of the porous catalyst layer to increase the hydrophobicity of the internal ionomer-gas interfaces within the porous catalyst layer.