Tuning CO2 uptake capacity in covalent organic frameworks via metal doping

Harrison D. Root; Matthew J. Hurlock; Jessica M. Rimsza; Brianna M. Addison; Sydney A. Goodman-Miller; Ping Lu; Benjamin Siu; Melissa L. Meyerson; Jessica Román-Kustas; Tina M. Nenoff

doi:10.1039/D5CC04666A

Tuning CO₂ uptake capacity in covalent organic frameworks via metal doping

Harrison D. Root,*^a Matthew J. Hurlock,†^b Jessica M. Rimsza,

^c Brianna M. Addison,

^a Sydney A. Goodman-Miller,^a Ping Lu,^d Benjamin Siu,^a Melissa L. Meyerson,^d Jessica Román-Kustas^e and Tina M. Nenoff

*^f

Author affiliations

* Corresponding authors

^a Advanced Materials Laboratory, Sandia National Laboratories, Albuquerque, NM, USA

^b Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, NM, USA

^c Geochemistry Department, Sandia National Laboratories, Albuquerque, NM, USA

^d Materials Characterization and Performance, Sandia National Laboratories, Albuquerque, NM, USA

^e Analytical Science and Corrosion, Sandia National Laboratories, Albuquerque, NM, USA

^f Advanced Science & Technology, Sandia National Laboratories, Albuquerque, NM, USA

Abstract

Covalent organic framework (COF) structures have been synthesized and doped with Cu²⁺, Mn²⁺, and Zn²⁺. Incorporation of a phenol moiety increases metal doping capacity by 2–5% by mass, and results in increased CO₂ adsorption by as much as 40%, compared to undoped structures. Interestingly, gas uptake is improved even though the incorporation of cations in the pore lowers the overall surface area of the structures.

This article is part of the themed collection: Emerging Trends in Advanced Functional Porous Materials

Chemical Communications

Tuning CO₂ uptake capacity in covalent organic frameworks via metal doping

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Tuning CO₂ uptake capacity in covalent organic frameworks via metal doping

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