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. 09, 2013
Filed:
Jul. 17, 2009
Jian-ping Zheng, Tallahassee, FL (US);
Zhiyong Liang, Tallahassee, FL (US);
Ben Wang, Tallahassee, FL (US);
Chun Zhang, Tallahassee, FL (US);
Wei Zhu, Tallahassee, FL (US);
Jian-ping Zheng, Tallahassee, FL (US);
Zhiyong Liang, Tallahassee, FL (US);
Ben Wang, Tallahassee, FL (US);
Chun Zhang, Tallahassee, FL (US);
Wei Zhu, Tallahassee, FL (US);
Florida State University Research Foundation, Inc., Tallahassee, FL (US);
Abstract
A membrane electrode assembly (MEA) for a fuel cell comprising a catalyst layer and a method of making the same. The catalyst layer can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on buckypaper. The catalyst layer can have 1% or less binder prior to attachment to the membrane electrode assembly. The catalyst layer can include (a) single-wall nanotubes, small diameter multi-wall nanotubes, or both, and (b) large diameter multi-wall nanotubes, carbon nanofibers, or both. The ratio of (a) to (b) can range from 1:2 to 1:20. The catalyst layer can produce a surface area utilization efficiency of at least 60% and the platinum utilization efficiency can be 0.50 g/kW or less.