This invention provides a reversible hydrogen loading and discharging system and a reversible method for loading and discharging hydrogen. The system and the methods of this invention comprise ethylene glycol as a liquid organic hydrogen carrier and at least one transition metal. By reacting ethylene glycol with at least one transition metal; at least one hydrogen molecule and at least one oligoester of ethylene glycol are formed (hydrogen releasing)⋅, and by reacting at least one oligoester of ethylene glycol with at least one transition metal and at least one hydrogen molecule, at least one ethylene glycol is formed (hydrogen loading).

This disclosure relates to novel metal hydrides, processes for their preparation, and their use in hydrogen storage applications.

Described herein are compositions and methods for the storage and release of hydrogen gas using covalent organic frameworks (COFs). Advantageously, the compositions and methods described herein may be used for the facile and rapid release of hydrogen gas at near ambient temperatures. The described COFs allow for photoactivation, where the release of gas is initiated or the rate of release is increased with the COF is exposed to electromagnetic radiation, for example, UV light.

The invention relates to a continuous flow reactor having a wall which delimits a channel, wherein at least one sub-area is arranged in the channel that has microstructuring which includes individual structures, the diameter of which on a base is between about 10 μm to about 100 μm. The invention further relates to methods for reacting a gaseous or liquid educt under the action of a catalyst.

The present application relates to a process for dehydrogenating organic molecules (OM) in a reaction vessel by means of an inductive field, wherein the reaction vessel and its contents are free of platinum, palladium, rhodium, gold, iridium, titanium, tantalum or ruthenium.

The present invention further relates to a process and to a corresponding reaction vessel for dehydrogenating organic molecules (OM), said process having the following steps: a) feeding the organic molecules (OM) into a reaction vessel (RB), where the reaction vessel i) has been provided with a device for generating an inductive field (IF); and ii) comprises a solid loose material (FLM), b) applying an inductive field (IF) and allowing the inductive field (IF) to act on the solid loose material (FLM) and the organic molecules (OM), c) removing the hydrogen from the reaction vessel (RB) during and/or after step b), d) removing the dehydrogenated organic molecules (DOM) from the reaction vessel (RB) during and/or after step b), for example during step c), wherein the solid loose material (FLM) is such that it can couple magnetically to the inductive field (IF) and consists of a metal (M) or metal alloy (ML) which can couple magnetically to the inductive field (IF) or has an outer layer (Sch) comprising or consisting of a metal (M) or metal alloy (ML) and the reaction vessel is such that the solid loose material (FLM) can couple to the inductive field (IF) and the solid loose material (FLM) comes into contact with the organic molecules (OM).

An electrochemical energy conversion and storage system includes an electrochemical energy conversion device, such as a fuel cell that is in fluid communication with a hydrogen or electrically regenerable organic liquid fuel and an oxidant, for receiving, catalyzing and electrochemically oxidizing at least a portion of the fuel to generate electricity, a thus partially oxidized liquid fuel, and water. The liquid fuel includes six-membered ring cyclic hydrocarbons with functional group substituents, wherein the ring hydrogens may undergo an electrochemical oxidative dehydrogenation to the corresponding aromatic molecules. Comprising ring-substituent functional groups may also be electrochemically oxidized now with a potential incorporation of oxygen thus providing an additional capacity for energy storage. The partially oxidized spent liquid fuel may be electrically regenerated in situ with now an input of electricity and water to the device, generating oxygen as a by-product. Alternatively, the recovered spent fuel may be conveyed to a facility where it is reconstituted by catalytic hydrogenation or electrochemical hydrogenation processes.

The present invention relates to siloxane hydrogen carrier compounds and to a method for producing hydrogen from said siloxane hydrogen carrier compounds.

A method for dehydrogenating a hydrogen carrier medium comprises the method steps of providing a metal-containing catalyst material, an at least partially loaded hydrogen carrier medium, a metal-free reaction accelerator substance, transferring hydrogen from the hydrogen carrier medium to the reaction accelerator substance and releasing hydrogen gas from the reaction accelerator substance.

A dehydrogenation chemical reactor includes: a housing; a catalyst part made of a thermally conductive material and disposed in the housing, where the catalyst part has a panel shape, and a catalyst is coated on a surface of the catalyst part to separate hydrogen from an organic hydrogen carrier; a heat transfer pipe which is installed to contact the catalyst part, and conducts latent heat to the catalyst part while pressurized and saturated fluid is supplied therein; and an organic hydrogen carrier line which is connected to the housing to form a passage in which the organic hydrogen carrier is introduced into the housing, contacts the catalyst part to separate hydrogen, and then is discharged.

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 (Jr), platinum (Pt), nickel (Ni), iron (Fe), cobalt (Co), or a combination thereof.