Patent · US Active

Catalytic platinum and its 3d-transition-metal alloy nanoparticles

US8741801B2 · kind B2 · utility

5Cited by

8References

23Claims

0Family size

Assignee

The Research Foundation for The State University of New York · US

Inventors

Jiye Fang · Vestal, US
Jun Zhang · Peachtree City, US

Key dates

Filing date	Nov 23, 2010
Grant date	Jun 3, 2014
Priority date	—
Expiry date	Jul 15, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Platinum (Pt)-based alloys are effective catalysts for oxygen reduction reaction (ORR) or fuel oxidation in proton exchange membrane fuel cells (PEMFCs). A wet-chemical approach for preparing monodisperse Pt3Ni, Pt3Co and Pt3Fe nanocubes and Pt3Ni nanoctahedra which are terminated with {100} and {111} facets, respectively, were developed. Such nanoscaled electrocatalysts supported on carbon black with controlled shape, e.g., octahedral configuration, is provided. ORR activity on the Pt3Ni nanoctahedra is ˜5.1 fold higher than that of nanocubes with a similar size, and their C-supported samples are highly active with respect to commercial Pt/C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.