Marru, Marcus, and Marlon Abeysinghe. “Research Progress on Small Molecule Adsorbents for Direct Air Capture of Carbon Dioxide (CO₂)”. Journal of Functional Materials and Applied Engineering 1, no. 1 (July 15, 2022): 34–49. Accessed June 27, 2026. http://www.wpias.edu.pl/ojs/index.php/JFMAE/article/view/258.