Solid state synthesis of metal borohydrides

DWPI Title: Manufacture of metal borohydride for energy storage materials, involves mixing metal polyhydro-closo-borate and metal hydride, charging hydrogen gas to mixture, and heating mixture
Abstract: A method for obtaining solid-state metal borohydrides without toxic precursors and expensive solvents includes dry mixing of metal hydrides and metal polyhydro-closo-borate starting materials. High pressure and heating is also used in the method. These materials can be used for hydrogen storage, general reducing agents, organic synthesis, wastewater treatment, and paper pulp bleaching.
Use: Manufacturing process for metal borohydride used for energy storage materials.
Advantage: The metal borohydrides can be synthesized on a large scale without using non-environment friendly/expensive solvents or precursors.
Novelty: The manufacturing process involves mixing without solvent, a metal polyhydro-closo-borate and a metal hydride under an inert atmosphere to form a mixture. Hydrogen gas is charged to the mixture at approximately 25 megapascals. The mixture is heated at a temperature of approximately 350-540 degrees Celsius to produce a metal borohydride product. The metal in the metal polyhydro-closo-borate and the metal hydride is selected from a group consisting lithium, sodium, potassium, rubidium and cesium.
Filed: 6/5/2018
Application Number: US16000683A
Tech ID: SD 13974.1
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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