The State University of New York (SUNY)-Buffalo is teaming with Arizona State University (ASU) and Gas Technology Institute (GTI) to develop an innovative sorbent comprised of trapped small amines in hierarchical nanoporous capsules (HNCs) embedded in porous electrospun fibers (PEFs) for direct air capture (DAC). The effective encapsulation of amines in HNCs will enable high sorbent stability and the innovative PEF macroscopic scaffold will allow for fast exposure of sorbent material to air. Research efforts involve the tailoring of both sorbent and PEF materials to achieve a compact system for DAC with high capacities for carbon dioxide (CO2) at concentrations typically available in air and at near-ambient conditions.