In some embodiments, the present disclosure pertains to methods of capturing CO.sub.2 from an environment by hydrating a porous material with water molecules to the extent thereby to define a preselected region of a plurality of hydrated pores and yet to the extent to allow the preselected region of a plurality of pores of the porous material to uptake gas molecules; positioning the porous material within a CO.sub.2 associated environment; and capturing CO.sub.2 by the hydrated porous material. In some embodiments, the pore volume of the hydrated porous material includes between 90% and 20% of the pre-hydrated pore volume to provide unhydrated pore volume within the porous material for enhanced selective uptake of CO.sub.2 in the CO.sub.2 associated environment. In some embodiments, the step of capturing includes forming CO.sub.2-hydrates within the pores of the porous material, where the CO.sub.2.Math.n/H.sub.2O ratio is n<4.

An additive assembly for an e-vaping device includes an adsorbent material that includes adsorbed carbon dioxide. The additive assembly may be in fluid communication with a vaporizer assembly that forms a generated vapor. The adsorbent material may release the carbon dioxide into the generated vapor based on at least a portion of the generated vapor adsorbing on the adsorbent material. The additive assembly may include a flavor material including a flavorant. The adsorbent material may generate heat based on at least a portion of the generated vapor adsorbing on the adsorbent material, and the flavor material may release flavorant into the generated vapor based at least in part on the heat generated by the adsorbent material. One or more of the adsorbent material and the flavor material may be included in beads. Adsorbent material and flavor material may be included in multiple additive structures within the additive assembly.

An additive assembly for an e-vaping device includes an adsorbent material that includes adsorbed carbon dioxide. The additive assembly may be in fluid communication with a vaporizer assembly that forms a generated vapor. The adsorbent material may release the carbon dioxide into the generated vapor based on at least a portion of the generated vapor adsorbing on the adsorbent material. The additive assembly may include a flavor material including a flavorant. The adsorbent material may generate heat based on at least a portion of the generated vapor adsorbing on the adsorbent material, and the flavor material may release flavorant into the generated vapor based at least in part on the heat generated by the adsorbent material. One or more of the adsorbent material and the flavor material may be included in beads. Adsorbent material and flavor material may be included in multiple additive structures within the additive assembly.

Carbon dioxide adsorbents are provided. The carbon dioxide adsorbents include a polymeric amine and a porous support on which the polymeric amine is supported. the polymeric amine consists of a polymer skeleton containing nitrogen atoms and branched chains bonded to the nitrogen atoms of the polymer skeleton. Each of the branched chains contains at least one nitrogen atom. the polymeric amine is modified by substitution of at least one of the nitrogen atoms of the polymer skeleton or the branched chains with a hydroxyl group-containing carbon chain.

Carbon dioxide adsorbents are provided. The carbon dioxide adsorbents include a polymeric amine and a porous support on which the polymeric amine is supported. the polymeric amine consists of a polymer skeleton containing nitrogen atoms and branched chains bonded to the nitrogen atoms of the polymer skeleton. Each of the branched chains contains at least one nitrogen atom. the polymeric amine is modified by substitution of at least one of the nitrogen atoms of the polymer skeleton or the branched chains with a hydroxyl group-containing carbon chain.

Compositions are provided comprising pyrolysis carbon and humus containing materials to prevent wasteful water loss in turf grass applications by reducing evaporation, decreasing root zone and surface runoff, storing the water in the soil between irrigation events, and by increasing plant rooting depth enabling access to deeply held water in the soil; and methods for making and using the same.

Compositions are provided comprising pyrolysis carbon and humus containing materials to prevent wasteful water loss in turf grass applications by reducing evaporation, decreasing root zone and surface runoff, storing the water in the soil between irrigation events, and by increasing plant rooting depth enabling access to deeply held water in the soil; and methods for making and using the same.

The present application is generally directed to gas storage materials such as activated carbon comprising enhanced gas adsorption properties. The gas storage materials find utility in any number of gas storage applications. Methods for making the gas storage materials are also disclosed.

The present application is generally directed to gas storage materials such as activated carbon comprising enhanced gas adsorption properties. The gas storage materials find utility in any number of gas storage applications. Methods for making the gas storage materials are also disclosed.

Highly mesoporous activated carbon products are disclosed with mesoporosities characterized by mesopore volumes of 0.7 to 1.0 cubic centimeters per gram or greater. Also disclosed are activated carbon products characterized by a Molasses Number of about 500 to 1000 or greater. Also disclosed are activated carbon products characterized by a Tannin Value of about 100 to 35 or less. The activated carbon products may be further characterized by total pore volumes of at least 0.85 cubic centimeters per gram and BET surface areas of at least about 800 square meters per gram. The activated carbon product may be derived from a renewable feedstock.