The present application is generally directed to gas storage materials such as activated carbon comprising enhanced gas adsorption properties. The gas storage materials find utility in any number of gas storage applications. Methods for making the gas storage materials are also disclosed.

A process for producing a hydrogen storage means. Separate layers comprising a hydrogen-storing material and a heat-conducting material are introduced into a press mold. The separate layers of the hydrogen-storing material and the heat-conducting material are compressed together to generate a sandwich structure. The heat-conducting material, on use of the sandwich structure as hydrogen storage means, assumes the task of conducting heat.

The hydrogen storage product comprises one or more reduced-graphene oxide layers functionalized with a boron species and decorated with an alkali or alkaline earth metal. Each layer of the structure further comprises boron-oxygen functional groups comprising oxygen atoms bonded to boron atoms. The hydrogen storage product has a composition suitable for physisorption of hydrogen molecule, and operates to reversibly store hydrogen under operating conditions of low pressure and ambient temperature.

The present disclosure relates to a composite for hydrogen storage formed through lithiation and a method of preparing the same.

A carbon nanomaterial for gas storage and a method for manufacturing the same are provided. The specific surface area of the carbon nanomaterial for gas storage is greater than 2000 m2/g. The mesopore volume of the carbon nanomaterial for gas storage is greater than the micropore volume of the carbon nanomaterial for gas storage, and the carbon nanomaterial for gas storage has a peak intensity ratio (ID/IG) between G band and D band, as determined from the Raman spectrum, between 1.1 and 2. In the carbon nanomaterial for gas storage, the pore volume of pores with a pore width of 6 nm or less is bigger than that of pores with a pore width greater than 6 nm.

A novel hydrogen absorption material is provided comprising a mixture of a lithium hydride with a fullerene. The subsequent reaction product provides for a hydrogen storage material which reversibly stores and releases hydrogen at temperatures of about 270° C.

A graphene sheet including an intercalation compound and 2 to about 300 unit graphene layers, wherein each of the unit graphene layers includes a polycyclic aromatic molecule in which a plurality of carbon atoms in the polycyclic aromatic molecule are covalently bonded to each other; and wherein the intercalation compound is interposed between the unit graphene layers.

A hydrogen storage composite material includes: a graphene oxide framework provided as a porous structure and having an average pore diameter of 1 to 2 nm; and the graphene oxide framework is impregnated with a metal hydride, the graphene oxide framework comprises: a graphene oxide; and a linker connecting the graphene oxide.

A heterostructure comprising at least one carbon nanomembrane on top of at least one carbon layer, a method of manufacture of the heterostructure, and an electronic device, a sensor and a diagnostic device comprising the heterostructure. The heterostructure comprises at least one carbon nanomembrane on top of at least one carbon layer, wherein the at least one carbon nanomembrane has a thickness of 0.5 to 5 nm and the heterostructure has a thickness of 1 to 10 nm.

Disclosed is a method for preparing a reduced graphene oxide-magnesium nanocrystal composite. The method includes contacting graphene oxide with a first reducing agent to prepare a reduced graphene oxide, and co-reducing the reduced graphene oxide and a precursor of magnesium in the presence of a second reducing agent to prepare a reduced graphene oxide-magnesium nanocrystal composite, wherein by adjusting the amount of the first reducing agent in contact with the graphene oxide, the size of the magnesium nanocrystals in the composite may be controlled.