Kersey et al. (2023): Encapsulation of Nanoparticle Organic Hybrid Materials within Electrospun Hydrophobic Polymer/Ceramic Fibers for Enhanced CO2 Capture

Kyle D. Kersey, Gahyun Annie Lee, Jeffrey H. Xu, Michelle K. Kidder, Ah-Hyung A. Park, Yong Lak Joo IN: Advanced Functional Materials, https://doi.org/10.1002/adfm.202301649

Liquid-like nanoparticle organic hybrid materials (NOHMs) consisting of a silica core with ionically grafted branched polyethyleneimine chains (referred to as NIPEI) are encapsulated within submicron-scale polyacrylonitrile (PAN)/polymer-derived-ceramic electrospun fibers. These fibers demonstrate up to ≈2 mmol CO₂ g⁻¹ fiber capture capacities in a pure CO₂ atmosphere through the nonwoven fibrous networks and the permeability of the OPSZ shell. The hybrid fibers additionally show enhanced capture kinetics under pure CO₂ and 400 ppm CO₂ conditions, indicating their promising application as a direct air capture platform.

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