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Hydrogen generation systems utilizing sodium silicide and sodium silica gel materials

Patent ·
OSTI ID:1361629

Systems, devices, and methods combine reactant materials and aqueous solutions to generate hydrogen. The reactant materials can sodium silicide or sodium silica gel. The hydrogen generation devices are used in fuels cells and other industrial applications. One system combines cooling, pumping, water storage, and other devices to sense and control reactions between reactant materials and aqueous solutions to generate hydrogen. Multiple inlets of varied placement geometries deliver aqueous solution to the reaction. The reactant materials and aqueous solution are churned to control the state of the reaction. The aqueous solution can be recycled and returned to the reaction. One system operates over a range of temperatures and pressures and includes a hydrogen separator, a heat removal mechanism, and state of reaction control devices. The systems, devices, and methods of generating hydrogen provide thermally stable solids, near-instant reaction with the aqueous solutions, and a non-toxic liquid by-product.

Research Organization:
Intelligent Energy Limited, Loughborough, GB
Sponsoring Organization:
USDOE
Assignee:
Intelligent Energy Limited
Patent Number(s):
9,669,371
Application Number:
14/733,596
OSTI ID:
1361629
Country of Publication:
United States
Language:
English

References (5)

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NMR studies of Na atoms in silicon clathrate compounds journal August 1996
NMR and X-ray Spectroscopy of Sodium−Silicon Clathrates journal May 2001
A versatile low temperature synthetic route to Zintl phase precursors: Na4Si4, Na4Ge4 and K4Ge4 as examples journal January 2009