C01B6/06

Graphene/Metal or Metalloid Core-Shell Composite and Manufacturing Method Thereof
20190185391 · 2019-06-20 ·

The present invention relates to a manufactured graphene/metal or metalloid core-shell composite and manufacturing method thereof. The method comprising: using a modified graphene oxide as a base, then performing concentration and steam drying followed by organic solvent replacement to obtain a modified graphene oxide organic solvent; using a liquid-phase self-assembly method to coat the modified graphene oxide onto a surface of the metal or metalloid to form a graphene/metal or metalloid coated particle solution, then filtering and drying to obtain the graphene metal/metalloid core-shell composite. The method improves upon a conventional organic and inorganic material coating technique, and reduces an impact of a water-based solvent and high temperature on a highly reactive metal and metalloid, thereby expanding the feasibility of the coating technique and addressing a barrier of applicability of graphene and reactive metal or metalloid in the field of energetic materials.

Use of fluidized-bed electrode reactors for alane production

Fluidized-bed reactors for producing alane are provided herein. An exemplary process includes inducing an electrical potential difference in an electrolyte solution to produce an anolyte solution that includes an alane adduct, wherein an electrical potential difference is generated between anode aluminum particles and a cathode, the electrolyte solution including an alkali metal hydride dissolved in a solvent, the anode aluminum particles and cathode being separated by a diaphragm.

Use of fluidized-bed electrode reactors for alane production

Fluidized-bed reactors for producing alane are provided herein. An exemplary process includes inducing an electrical potential difference in an electrolyte solution to produce an anolyte solution that includes an alane adduct, wherein an electrical potential difference is generated between anode aluminum particles and a cathode, the electrolyte solution including an alkali metal hydride dissolved in a solvent, the anode aluminum particles and cathode being separated by a diaphragm.

Heating methods for aluminum hydride production

Disclosed herein are systems and methods for heating alane etherate compositions for producing microcrystalline alpha alane. An exemplary heating method comprises introducing a preheated solvent into the alane etherate composition and rapidly stirring to effectuate rapid heating of the composition without the need to heat the reactor walls. In this way, the alane etherate composition can be heated while also reducing the risk of decomposition. In further embodiments, a two-stage reactor can be employed for producing alpha alane, wherein the heating occurs in the second stage.

Heating methods for aluminum hydride production

Disclosed herein are systems and methods for heating alane etherate compositions for producing microcrystalline alpha alane. An exemplary heating method comprises introducing a preheated solvent into the alane etherate composition and rapidly stirring to effectuate rapid heating of the composition without the need to heat the reactor walls. In this way, the alane etherate composition can be heated while also reducing the risk of decomposition. In further embodiments, a two-stage reactor can be employed for producing alpha alane, wherein the heating occurs in the second stage.

GERMANANE ANALOGS AND OPTOELECTRONIC DEVICES USING THE SAME
20190006605 · 2019-01-03 ·

The present invention provides novel two-dimensional van der Waals materials and stacks of those materials. Also provided are methods of making and using such materials.

GERMANANE ANALOGS AND OPTOELECTRONIC DEVICES USING THE SAME
20190006605 · 2019-01-03 ·

The present invention provides novel two-dimensional van der Waals materials and stacks of those materials. Also provided are methods of making and using such materials.

Mechanochemical solid/liquid reaction in formation of alane

Methods for forming alane are described. The method drives the alane producing chemical reaction by a mechanical energy source such as a ball mill and includes stabilization of the product with solvent. At least one of the reactants is insoluble in the solvent. Thus, the product is both stabilized and phase-separated from the reactant(s) immediately upon formation. The method can be used to form -alane, for instance for use in hydrogen storage.

Mechanochemical solid/liquid reaction in formation of alane

Methods for forming alane are described. The method drives the alane producing chemical reaction by a mechanical energy source such as a ball mill and includes stabilization of the product with solvent. At least one of the reactants is insoluble in the solvent. Thus, the product is both stabilized and phase-separated from the reactant(s) immediately upon formation. The method can be used to form -alane, for instance for use in hydrogen storage.

MECHANOCHEMICAL SOLID/LIQUID REACTION IN FORMATION OF ALANE

Methods for forming alane are described. The method drives the alane producing chemical reaction by a mechanical energy source such as a ball mill and includes stabilization of the product with solvent. At least one of the reactants is insoluble in the solvent. Thus, the product is both stabilized and phase-separated from the reactant(s) immediately upon formation. The method can be used to form -alane, for instance for use in hydrogen storage.