Activated carbon cryogels and related methods
AssigneesEnerG2, Inc., University of Washington
InventorsAaron Feaver, Guozhong Cao
Life of this patent
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Abstract
Carbon cryogels, methods for making the carbon cryogels, methods for storing a gas using the carbon cryogels, and devices for storing and delivering a gas using the carbon cryogels.
Claims27
A carbon cryogel having a surface area of from about 1500 to about 3000 m2/g, wherein said cryogel has a pore size distribution comprising:
- a) a peak for pores having a diameter less than 2 nm;
- b) a peak for pores having a diameter of about 3 nm;
- and
- c) a peak for pores having a diameter between 7 and 8 nm.
A carbon cryogel having a gravimetric methane storage capacity of 15-20%, a surface area of from about 2400 to about 2600 m2/g, and a total pore volume of from about 1.0 to about 1.5 cm3/g.
A carbon cryogel having a peak pore volume greater than about 0.1 cm3/g for pores having a diameter less than about 2 nm and having a peak pore volume greater than about 0.1 cm3/g for pores having a diameter of about 5 to about 12 nm.
A carbon cryogel having a gravimetric methane storage capacity of about 0.009 to about 0.013 mol/g at room temperature and 500 psi, a surface area of from about 1500 to about 2500 m2/g, and a total pore volume of from about 1.2 to about 1.5 cm3/g.
A gas storage vessel, comprising a vessel and a carbon cryogel having a gravimetric methane storage capacity of about 0.009 to about 0.013 mol/g at room temperature and 500 psi, a surface area of from about 1500 to about 2500 m2/g, and a total pore volume of from about 1.2 to about 1.5 cm3/g.
Dependencies are inferred from the claim text.