Extended two dimensional metal nanotubes and nanowires useful as fuel cell catalysts and fuel cells containing the same
US9680160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2011 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Sep 8, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/762
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Metal nanotubes are provided comprising a composition having formula (M1)NT: wherein M1=Pt, Pd, or Au; wherein the nanotubes have: a wall thickness of from 2 to 12 nm; an outer diameter of from 30 to 100 nm; and a length of from 5 to 30 μm. Metal nanowires are also provided comprising a composition having formula (M2)NW: wherein M2=Ag or Cu; wherein when M2=Ag, the nanowires have a diameter of from 25 to 60 nm and a length of from 1 to 10 μm; and when M2=Cu, the nanowires have a diameter of from 50 to 100 nm and a length of from 10 to 50 μm. In other embodiments, fuel cells are also described having at least one anode; at least one cathode; an electrolyte membrane between the at least one anode and at least one cathode; and a catalyst comprising either of the above described metal nanotubes or nanowires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.