摘要:
A hydrogen storage material includes: a first storage material body (1) which stores hydrogen; and a second storage material body (2) which stores hydrogen, and coats a surface of the first storage material body (1). A hydrogen equilibrium pressure (HP) of the second storage material body (2) is lower than that of the first storage material body (1) at the hydrogen generation temperature of the first storage material body (1).
摘要:
PROBLEM TO BE SOLVED: To provide a composite hydrogen storage material and methods related thereto, and a hydrogen storage system using the same.SOLUTION: A method 100 of making a composite hydrogen storage material is provided for forming 102 active material particles into a fine powder. A binder may be mixed 104 with the fine powder sufficient to create a mixture. The mixture may be heated 106 sufficient to form a composite hydrogen storage material, wherein the binder immobilizes the active material particles sufficient to maintain relative spatial relationships between the active material particles. The binder comprises less than about 10 wt.% of the composite hydrogen storage material. Also, the composite hydrogen storage material comprises a porosity of 0.1% to 50%. The binder immobilizes the active material particles sufficient to maintain relative spatial relationships between the active material particles.
摘要:
PROBLEM TO BE SOLVED: To provide an improved hydrogen storage material that releases hydrogen at low temperatures and is able to be rehydrated after release of the hydrogen so that onboard storage becomes feasible.SOLUTION: In one aspect, there is disclosed a process of forming a hydrogen material including the steps of providing a metal hydride material, providing a Bronsted acid material, combining the metal hydride material and Bronsted acid material, and pyrolyzing the combined material forming a hydrogen storage material having a hydrogen release temperature lower than the metal hydride material.
摘要:
PROBLEM TO BE SOLVED: To provide a hydride complex which generates a hydrogen gas with a relatively high purity at 200°C or lower and is easily regenerated, and a method for producing a hydrogen gas by using a hydride complex. SOLUTION: There is provided a hydride complex which includes NaH and a metal salt containing an alkaline earth metal or a transition metal, and in this case, the method for producing a hydrogen gas has a reaction process for reacting the hydride complex with an ammonia gas. Further provided is a hydride complex which includes NaH, a metal salt containing an alkaline earth metal or a transition metal, and an ammonia source which is solid at a normal temperature and generates an ammonia gas by decomposition, and in this case, the method for producing a hydrogen gas has a reaction process for heating the hydride complex. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a hydrogen storage material which can store a large amount of hydrogen therein even when being filled with hydrogen at a low pressure. SOLUTION: This manufacturing method includes synthesizing AlH 3 , and ball-milling the synthesized AlH 3 in a condition of applying a force of 2 G to 20 G (where G represents gravity acceleration) to make an X-ray diffraction pattern of AlH 3 into a halo pattern. Thus formed AlH 3 is specifically nanostructural AlH 3 , for instance, in which grain boundary phases 32 exist between respective matrix phases 30 and 30, the side length t2 of the matrix phase 30 is 20 nm or less, and the width w2 of the grain boundary phase 32 is 10 nm or less; or is amorphous AlH 3 . The manufacturing method further includes making the ball-milled AlH 3 release hydrogen, and then making the product occlude hydrogen to convert the product into AlHx (where 0 COPYRIGHT: (C)2008,JPO&INPIT