Nanoporous articles and methods of making same

Details Nanoporous articles and methods of making same Nanoporous articles and methods of making same

2011-01-04

2011-01-04

Lawrence, Frank M (Department: 1775)

Gas separation: processes

Solid sorption

Inorganic gas or liquid particle sorbed

C095S903000, C096S153000, C502S416000

Reexamination Certificate

active

07862646

ABSTRACT:
An adsorbent having porosity expanded by contact with a first agent effecting such expansion and a pressurized second agent effecting transport of the first agent into the porosity, wherein the adsorbent subsequent to removal of the first and second agents retains expanded porosity. The adsorbent can be made by an associated method in which materials such as water, ethers, alcohols, organic solvent media, or inorganic solvent media can be utilized as the first agent for swelling of the porosity, and helium, argon, krypton, xenon, neon, or other inert gases can be employed as the pressurized second agent for transport of both agents into the porosity of the adsorbent, subsequent to which the agents can be removed to yield an adsorbent of increased capacity for sorbable fluids, e.g., organometallic compounds, hydrides, halides and acid gases. Also described is a nanoporous carbon composite having porosity that is at least partially filled with material imparting to the composite an enhanced character with respect to characteristics selected from the group consisting of hardness, wear-resistance and toughness, as compared with the nanoporous carbon alone.

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