Templated synthesis of mesoporous aluminas by graft copolymer and their CO2 adsorption capacities
Source abstract
Abstract
Mesoporous aluminas were synthesized via a sol–gel process by templating an amphiphilic graft copolymer, PVC–g–POEM, consisting of a poly(vinyl chloride) (PVC) backbone and poly(oxyethylene methacrylate) (POEM) side chains. The mesoporous structures of aluminas with large surface areas were confirmed by X-ray diffraction, transmission electron microscopy, and nitrogen adsorption/desorption analysis. Aluminas synthesized with PVC–g–POEM graft copolymer exhibited higher CO2 adsorption capacities (0.7 mol CO2/kg sorbent) than aluminas synthesized without graft copolymer (0.6 mol CO2/kg sorbent). The adsorption capacity of alumina strongly depends on its structure and calcination temperature; amorphous (400 °C) > γ phase (800 °C) > α phase (1000 °C).
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Research context
OpenAlex topics: Mesoporous Materials and Catalysis · Catalytic Processes in Materials Science · Zeolite Catalysis and Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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