Method of reversibly storing H2 and H2 storage system based on metal-doper carbon-based materials
AssigneeNational University of Singapore
InventorsPin Chen, Jianyi Lin, Kuang Lee Tan
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Abstract
This invention is directed to a method of reversibly storing hydrogen comprising exposing a solid sorbent of metal-doped carbon-based material to a hydrogen atmosphere at a temperature of from about 250 K to about 973 K under ambient or higher pressure. The metal-doped carbon-based material is generally an alkali metal-doped carbon-based material prepared by mixing a carbon material with an alkali metal salt and calcining the mixture under an atmosphere of inert or reductive gas.
Claims35
A method of reversibly storing hydrogen comprising exposing a solid sorbent comprising an alkali metal-doped carbon-based material that is doped with at least one alkali metal to a hydrogen atmosphere at a temperature of from about 200 K to about 973 K under 1 atm or higher H2 pressure.
A method of reversibly storing hydrogen comprising:
- pre-treating a solid sorbent comprising a carbon-based material that is doped with at least one alkali metal, in an inert atmosphere;
- and
- exposing the pre-treated solid sorbent to a hydrogen atmosphere at a temperature of from 200 K to 973 K under ambient or higher H2 pressure.
A material prepared by pre-treating a solid sorbent comprising a carbon-based material that is doped with a t least one alkali metal, in an inert atmosphere, and exposing the pre-treated solid sorbent to a hydrogen atmosphere at a temperature of from 200 K to 973 K under ambient or higher H2 pressure.
Dependencies are inferred from the claim text.