Molecular metal-Oxo catalysts for generating hydrogen from water
US8961776B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2010 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Aug 8, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F11/005
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A composition of matter suitable for the generation of hydrogen from water is described, the positively charged cation of the composition having the general formula [(PY5W2)MO]2+, wherein PY5W2 is (NC5XYZ)(NC5H4)4C2W2, M is a transition metal, and W, X, Y, and Z can be H, R, a halide, CF3, or SiR3, where R can be an alkyl or aryl group. The two accompanying counter anions, in one embodiment, can be selected from the following Cl−, I−, PF6−, and CF3SO3−. In embodiments of the invention, water, such as tap water containing electrolyte or straight sea water can be subject to an electric potential of between 1.0 V and 1.4 V relative to the standard hydrogen electrode, which at pH 7 corresponds to an overpotential of 0.6 to 1.0 V, with the result being, among other things, the generation of hydrogen with an optimal turnover frequency of ca. 1.5 million mol H2/mol catalyst per h.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.