| 摘要 |
PURPOSE:To provide a hydrogen storing material capable of absorbing and releasing much hydrogen at room temp. by substituting Nb for part of FeTi to form an intermetallic cpd. CONSTITUTION:This hydrogen storing material is a Fe1-xNbxTi type intermetallic cpd. (x is about 0.01-0.15) obtd. by substituting Nb for part of FeTi. By reacting hydrogen this Fe-Ti-Nb type material is converted into hydride of Fe1-xNbxTiHy (x is about 0.01-0.15 and y is about 2 or less). This intermediallic cpd. forms hydride at room temp. without being activated. As the x is increased, the hydrogen absorving equilibrium press. is reduced to facilitate formation of hydride. The material absorbs and releases hydrogen at high speeds, and it has such characteristics that it does not deteriorate when absorption and release are repeated. In addn., the material can store and release hydrogen at a density higher than that of liquid hydrogen.
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