The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2004
Filed:
Oct. 24, 2002
Applicant:
Inventors:
Wendy L. Mao, Washington, DC (US);
Ho-Kwang Mao, Washington, DC (US);
Assignee:
Carnegie Institution of Washington, Washington, DC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F17C 1/100 ;
U.S. Cl.
CPC ...
F17C 1/100 ;
Abstract
A method for hydrogen storage includes providing water and hydrogen gas to a containment volume, reducing the temperature of the water and hydrogen gas to form a hydrogen clathrate at a first cryogenic temperature and a first pressure and maintaining the hydrogen clathrate at second cryogenic temperature within a temperature range of up to 250 K to effect hydrogen storage. The low-pressure hydrogen hydrate includes H O molecules, H molecules and a unit cell including polyhedron cages of hydrogen-bonded frameworks of the H O molecules built around the H molecules.