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:
Sep. 27, 2016
Filed:
Oct. 11, 2013
John B. Kerr, Oakland, CA (US);
Xiaobing Zhu, Albany, CA (US);
Gi Suk Hwang, Albany, CA (US);
Zulima Martin, Berkeley, CA (US);
Qinggang He, Culver City, CA (US);
Peter Driscoll, Methuen, MA (US);
Adam Weber, Pleasant Hill, CA (US);
Kyle Clark, Oakland, CA (US);
John B. Kerr, Oakland, CA (US);
Xiaobing Zhu, Albany, CA (US);
Gi Suk Hwang, Albany, CA (US);
Zulima Martin, Berkeley, CA (US);
Qinggang He, Culver City, CA (US);
Peter Driscoll, Methuen, MA (US);
Adam Weber, Pleasant Hill, CA (US);
Kyle Clark, Oakland, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
Water soluble catalysts, (M)meso-tetra(N-Methyl-4-Pyridyl)Porphinepentachloride (M=Fe, Co, Mn & Cu), have been incorporated into the polymer binder of oxygen reduction cathodes in membrane electrode assemblies used in PEM fuel cells and found to support encouragingly high current densities. The voltages achieved are low compared to commercial platinum catalysts but entirely consistent with the behavior observed in electroanalytical measurements of the homogeneous catalysts. A model of the dynamics of the electrode action has been developed and validated and this allows the MEA electrodes to be optimized for any chemistry that has been demonstrated in solution. It has been shown that improvements to the performance will come from modifications to the structure of the catalyst combined with optimization of the electrode structure and a well-founded pathway to practical non-platinum group metal catalysts exists.