Abstract: The present invention relates to a hydrogen-storing composite material which is convertible essentially reversibly between a storing state and a non-storing state, wherein the reaction enthalpy in this conversion reaction can be set in a targeted manner to a value between 15 and 80 kJ/mol of H2, preferably 25 to 40 kJ/mol of H2.
Type:
Grant
Filed:
October 30, 2008
Date of Patent:
January 6, 2015
Assignee:
Helmholtz-Zentrum Geesthacht Zentrum für Material—und Küstenforschung GmbH
Inventors:
Nico Eigen, Martin Dornheim, Rüdiger Bormann
Abstract: A crystalline AlH3 is ball-milled in a hydrogen atmosphere while applying a force of 10 G to 30 G (in which G is gravitational acceleration). The milling time is more than 10 minutes and less than 60 minutes. The hydrogen storage material thus produced has a structure containing a plurality of matrix phases and a grain boundary phase disposed between the matrix phases. The matrix phases comprise Al and have a side length of 1 to 200 nm, and the grain boundary phase comprises an amorphous phase and contains hydrogen in the state of a solid solution.
Abstract: The invention relates to a solution of lithium aluminum hydride in 2-methyltetrahydrofuran or a solvent mixture containing 2-methyltetrahydrofuran, a method for producing said solution and use of the same.
Type:
Grant
Filed:
September 1, 2006
Date of Patent:
September 23, 2014
Assignee:
Chemetall GmbH
Inventors:
Uwe Lischka, Alexander Murso, Ulrich Wietelmann
Abstract: The present invention relates to a process for the preparation of stannane and deuterostannane by reacting a stannic halide with lithium aluminum hydride or aluminum deuteride respectively in a polydentate solvent.
Abstract: A packaged reactive material includes a reactive material that is configured to increase in size when exposed to a predetermined gas, and an inert coating material surrounding a surface of the reactive material. The inert coating material is configured to allow the predetermined gas to diffuse through to the reactive material and has an elongation that will not accommodate expansion of the reactive material at full saturation of the predetermined gas.
Abstract: The invention relates to a solution of lithium aluminum hydride in 2-methyltetrahydrofuran or a solvent mixture containing 2-methyltetrahydrofuran, a method for producing said solution and use of the same.
Type:
Application
Filed:
September 1, 2006
Publication date:
June 4, 2009
Inventors:
Uwe Lischka, Alexander Murso, Ulrich Wietelmann
Abstract: A complex aluminum hydride doped with a catalytic material adapted to increase the kinetics of hydrogen absorption/desorption of the aluminum hydride without reducing the hydrogen storage capacity of the aluminum hydride.
Type:
Grant
Filed:
September 10, 2003
Date of Patent:
April 18, 2006
Assignee:
Ovonie Fuel Cell LLC
Inventors:
Stanford R. Ovshinsky, Boyko Aladjov, Srinivasan Venkatesan, Meera Vijan, Subhash K. Dhar
Abstract: The present invention concerns compositions, apparatus and methods for hydrogen storage. In certain embodiments, the compositions comprise sodium alanate and {n5-C5H5}2TiH2. In preferred embodiments, the components of the composition are present in specified molar ratios, for example 0.7 NaH to 1.0 Al to 0.1 Ti. In various embodiments, the hydrocarbon rings coordinating the titanium are removed from the composition, for example by melting at 182° C. or higher or by cyclic discharge and recharge of hydrogen at temperatures of 100° C. or less. Methods for producing and using the claimed compositions are also provided. In various embodiments, the alanate composition may be stored, shipped and used in a modular container, such as a cassette. Exemplary hydrogen utilizing systems and methods for ordering, distribution and shipping of cassettes are also disclosed herein.