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1. (WO2013126491) POLYVINYLPYRROLIDONE (PVP) FOR ENHANCING THE ACTIVITY AND STABILITY OF PLATINUM-BASED ELECTROCATALYSTS

Pub. No.:    WO/2013/126491    International Application No.:    PCT/US2013/027003
Publication Date: Fri Aug 30 01:59:59 CEST 2013 International Filing Date: Fri Feb 22 00:59:59 CET 2013
IPC: H01M 4/88
Applicants: GEORGETOWN UNIVERSITY
TONG, Yuye, J.
Inventors: TONG, Yuye, J.
Title: POLYVINYLPYRROLIDONE (PVP) FOR ENHANCING THE ACTIVITY AND STABILITY OF PLATINUM-BASED ELECTROCATALYSTS
Abstract:
The electrocatalytic compositions of this invention comprise a platinum-based electrocatalyst and polyvinylpyrrolidone (PVP), whereby the PVP improves certain properties of the platinum-based electrocatalyst. The electrolytic compositions described herein have applications in fuel cell technologies. The polymer-modi tied platinum-based electrocatalyst compositions exhibit an enhanced long-term CO tolerance with a small hindrance to the intrinsic activity of the platinum based electrocatalyst. Furthermore, the electrocatalytic compositions demonstrate improved catalyst stability.