Storage material for hydrogen

US4446101A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Otto Bernauer · Waiblingen, DE
• Klaus Ziegler · Furtwangen, DE

Key dates

• Filing date: Sep 29, 1982
• Grant date: May 1, 1984
• Expiry date: Sep 29, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S420/90
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A storage material for hydrogen comprising an alloy with the following composition: ______________________________________ Ti(V.sub.1-a-b Fe.sub.a Al.sub.b).sub.x Cr.sub.y Mn.sub.2-x-y, ______________________________________ wherein: x = greater than 1, less than 2 y = 0 to approximately 0.2 x + y = not greater than 2 a = 0 to approximately 0.25 b = 0 to approximately 0.33 a + b = not greater than approximately 0.35 (1 - a - b) .multidot. x = not less than 1 ______________________________________ This storage material for hydrogen can, in the cold state, absorb a maximum of 3.2% by weight of H.sub.2 and already possesses, at low temperatures, a high reaction speed for the absorption of hydrogen. During the absorption of hydrogen, the storage material exhibits self-heating to high temperatures. Thus, in addition to its use for storing hydrogen, it is also particularly suitable for use in preheating systems for hydride-type storage units of motor vehicles.