Abstract

As technologies turn to more efficient routesto remove CO2from mixed gas streams for H2or air purification, new cost‐effective multifunctional materials are needed for the separation processes. Here, hybrid poly(ethylene glycol)/fumed silica nanocomposite membranes exhibiting high CO2/H2selectivity (> 11) and CO2permeability (∼ 83 Barrer), as well as robust mechanical properties and optical clarity, are reported (see Figure).

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