Hydrogen storage materials and method of making same
US4431561A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1982 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Apr 28, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A material for reversibly storing hydrogen is formed from a lightweight matrix which is chemically and structurally modified to improve its hydrogen storage properties. The utilization of a material which can be any of a number of different disordered structures makes possible the modification of local order chemical environments of the material to increase hydrogen storage capacity and/or improve absorption and desorption properties. Lightweight modifier elements structurally modify the local chemical environments of the matrix to provide a material having an increased density of storage sites to increase hydrogen storage capacity. Transition and rare earth modifier elements structurally modify the local chemical environments to provide a material with an increased density of catalytically active sites for dissociating hydrogen molecules to increase the rate at which hydrogen absorption and desorption can be accomplished. The transition and rare earth modifier elements also structurally modify local order chemical environments to provide sites which store hydrogen atoms at lower bond energies to significantly reduce hydrogen desorption temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.