Provided is a hydrogen storage system including a solution including ethylenediamine bisborane (EDAB) and ethylenediamine (ED), in which the hydrogen storage system is capable of performing a reversible dehydrogenation/hydrogenation reaction at a temperature of 20? C. to 200? C. in the presence of a heterogeneous metal catalyst including ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), platinum (Pt), nickel (Ni), iron (Fe), cobalt (Co), or a combination thereof.

A synthesis process of a liquid organic hydrogen carrier charged with hydrogen, Hn-LOHC, wherein a methanisation digestate is used as a hydrogen source, including at least the steps of: a) production of gaseous ammonia from the methanisation digestate; b) division of the gaseous ammonia produced in step a) into a first and a second flow; c) catalytic amination of a liquid organic hydrogen carrier not charged with hydrogen, H0-LOHC, by reaction with the gaseous ammonia from the first flow to convert the H0-LOHC into an aminated H0-LOHC and produce hydrogen; d) catalytic dissociation of gaseous ammonia from the second flow to produce hydrogen; and e) catalytic hydrogenation of the aminated H0-LOHC obtained in step c), by reacting with the hydrogen produced in steps c) and d), whereby the Hn-LOHC is obtained.

A gas-loading and packaging system is provided for loading a material used in a hydrogen fuel cell with gas and packaging the material in a sealed container. The gas may comprise a hydrogen gas or other gas. The material may, for example, comprise zeolite. The material is loaded with gas by exposing the material to the gas under high pressure and a cryogenic temperature of about 93 Kelvin or lower. When the material is exposed to gas under pressure and at cryogenic temperature, the gas absorbs into or adsorbs onto the material. The mass of the material is continuously monitored and used to determine when the material is loaded with the desired amount of gas. After the material is loaded with gas, high pressure and cryogenic temperature is maintained while the material is packaged and sealed in a cryogenically cooled container.

The invention provides a process for the production of hydrogen, comprising catalytically decomposing a concentrated aqueous solution of potassium formate in a reaction vessel to form bicarbonate slurry and hydrogen, discharging the hydrogen from said reaction vessel, and treating a mixture comprising the bicarbonate slurry and the catalyst with an oxidizer, thereby regenerating the catalyst. Pd/C catalysts useful in the process are also described.

This disclosure relates to novel manganese hydrides, processes for their preparation, and their use in hydrogen storage applications. The disclosure also relates to processes for preparing manganese dialkyl compounds having high purity, and their use in the preparation of manganese hydrides having enhance hydrogen storage capacity.

Described herein are compositions composed of frustrated Lewis pairs impregnated in porous materials such as, for example, metal-organic frameworks, and their uses thereof. These compositions may allow new applications of frustrated Lewis pairs in catalysis by sequestering and protecting the frustrated Lewis pair within the nanospace of the porous material. Also provided are methods of hydrogenating an organic compound having at least one unsaturated functional group comprising using the compositions described herein.

The present disclosure relates generally to new forms of portable energy generation devices and methods. The devices are designed to covert formic acid into released hydrogen, alleviating the need for a hydrogen tank as a hydrogen source for fuel cell power.

Provided herein are the metalloborane compounds, MOF-metalloborane compositions, and hydrogen storage system used for high density hydrogen storage. The compounds and compositions may have the structure M.sub.2B.sub.6H.sub.6 or MOF-M.sub.2B.sub.6H.sub.6-dicarboxylic acid. Particularly the transition metal M may be titanium or scandium and the MOF may be MOF5. The hydrogen storage systems hydrogen absorbed to the metalloborane compounds or to the MOF-metalloborane compositions. Methods of storing hydrogen are provided comprising flowing or passing hydrogen gas for absorptive contact with the metalloborane compounds or to the MOF-metalloborane compositions. Also provided is a method for calculating the hydrogen storage capacity of a metalloborane is provided in which random sampling of the thermodynamic states of a two-system model of hydrogen in the presence of a metal organic framework-metalloborane crystal structure is used to calculate probability of hydrogen absorption.

Disclosed are cyclodextrin-based metal organic frameworks comprising a metal cation and cyclodextrin or a cyclodextrin derivative. These metal organic frameworks are permanently porous and capable of molecule storage.

The disclosure provides for adsorbents with stepped isotherms for gas storage applications.