Substrate selection for a catalyst
US8546288B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2012 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Mar 21, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In one embodiment, a method of forming a catalyst/substrate construction includes: identifying a catalyst having a specific activity, determining a surface area factor for supporting the catalyst based on the specific activity of the catalyst; selecting a substrate having the surface area factor; and applying the substrate to the catalyst to form the catalyst/substrate construction. In certain instances, the surface area factor may be determined according to the following equation:wherein the term “Baseline” refers to mass activity of 100 A per gram of platinum (Pt) for a comparative catalyst 5 nm Pt nano-particles dispersed on a carbon black support, the term “Mass Activity IF” refers to the activity required to achieve a high current density performance target of 1.5 A/cm2 at 0.67 V, at a platinum loading of 0.1 mg Pt/cm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.