Use of triammonium salt of aurin tricarboxylic acid as risk mitigant for aluminum hydride
AssigneeSavannah River Nuclear Solutions, LLC
InventorsJose A. Cortes-Concepcion, Donald L. Anton
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Abstract
A process and a resulting product by process of an aluminum hydride which is modified with by physically combining in a ball milling process an aluminum hydride with a triammonium salt of aurin tricarboxylic acid. The resulting product is an aluminum hydride which is resistant to air, ambient moisture, and liquid water while maintaining useful hydrogen storage and release kinetics.
Claims11
A process of stabilizing a hydride with respect to exposure to air and water comprising:
- providing a supply of a hydride;
- introducing into said hydride an effective amount of a moisture and water resistant agent of a triammonium salt of aurin tricarboxylic acid without use of a solvent;
- high energy ball milling the hydride and triammonium salt of aurin tricarboxylic acid at ambient conditions to modify surfaces of the hydride by a surface coating of the triammonium salt of aurin tricarboxylic acid wherein following ball milling, the hydride is more stable than before the ball milling by reducing reactivity of the hydride to water and exposure to air.
A moisture and water resistant aluminum hydride comprising:
- a ball milled coated aluminum hydride particle having an exterior surface of the particle coated with a triammonium salt of aurin tricarboxylic acid and formed by high energy ball milling at ambient conditions the aluminum hydride with the triammonium salt of aurin tricarboxylic acid without use of a solvent or a slurry resulting in a modification of the exterior surface of the aluminum hydride particle by a surface coating of the triammonium salt of aurin tricarboxylic acid wherein the ball milled coated aluminum hydride particle is more stable when exposed to water as compared to aluminum hydride particles that are not ball milled with a triammonium salt of aurin tricarboxylic acid by reducing reactivity of the hydride to moisture in air and to liquid water.
A moisture and water resistant aluminum hydride consisting essentially of:
- a ball milled coated aluminum hydride particle formed by high energy ball milling at ambient conditions the aluminum hydride in the presence of triammonium salt of aurin tricarboxylic acid without use of a solvent or a slurry resulting in a mechanical and chemical modification of surfaces of the aluminum hydride particle by a surface coating of the triammonium salt of aurin tricarboxylic acid wherein the ball milled coated aluminum hydride particle is more stable when exposed to water as compared to aluminum hydride particles that are not ball milled with a triammonium salt of aurin tricarboxylic acid by reducing reactivity of the hydride to moisture in air and to liquid water.
Dependencies are inferred from the claim text.