Improving the Direct Air Capture Capacity of Grafted Amines via Thermal Treatment

Melinda Jue, Nathan Ellebracht, Mathew Rasmussen, Elwin Hunter-Sellars, Maxwell Marple, Matthew Yung, Simon Pang

Research output: Contribution to journalArticlepeer-review

Abstract

This study investigates the effects of elevated temperature thermal treatments on the direct air capture of CO2 by aminosilane-grafted SBA-15 silica sorbents. Exposing samples to high temperatures (200-250 degrees C compared to 80-120 degrees C) in an inert environment resulted in improved CO2 capacity (5-21%) that was sustained over multiple adsorption/desorption cycles.
Original languageAmerican English
Pages (from-to)7077-7080
Number of pages4
JournalChemical Communications
Volume60
Issue number55
DOIs
StatePublished - 2024

NREL Publication Number

  • NREL/JA-5100-90469

Keywords

  • CO2
  • grafted amines
  • thermal treatments

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