Oxygen stabilized zirconium vanadium intermetallic compound
AssigneeThe United States of America as represented by the United States Department of Energy
InventorsMarshall H. Mendelsohn, Dieter M. Gruen
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Abstract
An oxygen stabilized intermetallic compound having the formula Zr.sub.x OV.sub.y where x=0.7 to 2.0 and y=0.18 to 0.33. The compound is capable of reversibly sorbing hydrogen at temperatures from -196.degree. C. to 450.degree. C. at pressures down to 10.sup.-6 Torr. The compound is also capable of selectively sorbing hydrogen from gaseous mixtures in the presence of CO and CO.sub.2.
Claims7
An oxygen stabilized intermetallic compound capable of reversibly sorbing hydrogen having the chemical formula Zr.sub.x VO.sub.y where x=0.7 to 2.0 and y=0.18 to 0.33.
The method of storing hydrogen comprising contacting an active form of an oxygen stabilized intermetallic compound having the formula Zr.sub.x VO.sub.y, where x=0.7 to 2.0 and y=0.18 to 0.33, with gaseous hydrogen at a pressure above the dissociation pressure of hydride.
A method for separating hydrogen from a gaseous mixture comprising:
- contacting an active form of the intermetallic compound Zr.sub.x VO.sub.y, where x=0.7 to 2.0 and y=0.18 to 0.33, with a gaseous mixture at a pressure of at leas 1.4 psia and a temperature of at least 25.degree. C. whereby hydrogen in the mixture is absorbed to form a metal hydride.
Dependencies are inferred from the claim text.