Abstract:
A tunable species removal media including a polymer-impregnated porous material with the introduction of heteroatoms into the porous material during the synthesis of the oxide support. The polymer can be poly(ethyleneimine) (PEI), the porous material a framework of silica nanoparticles, and the heteroatoms selected from Zr, Ti, Fe, Ce, Al, B, Ga, Co, Ca, P, and Ni. The media has a CO2 adsorption of greater than 0.19 mmol CO2/g when exposed to a 400 ppm CO2/Ar flow at a rate of 100 mL/min, and can also have a CO2 adsorption of greater than 0.65 mmol CO2/g when exposed to a 10% CO2/Ar flow at a rate of 100 mL/min. The media can have a heteroatom/Si molar ratio greater than or equal to 0.002.
Abstract translation:一种可调物质去除介质,包括聚合物浸渍的多孔材料,在合成氧化物载体期间将杂原子引入多孔材料中。 聚合物可以是聚(乙烯亚胺)(PEI),多孔材料是二氧化硅纳米颗粒的骨架,以及选自Zr,Ti,Fe,Ce,Al,B,Ga,Co,Ca,P和Ni的杂原子。 当以100mL / min的速率暴露于400ppm CO 2 / Ar流时,介质具有大于0.19mmol CO 2 / g的CO 2吸附,并且当暴露时,介质也可以具有大于0.65mmol CO 2 / g的CO 2吸附 至100%/分钟的10%CO 2 / Ar流。 介质可以具有大于或等于0.002的杂原子/ Si摩尔比。