A crosslinking alkylation strategy to construct nitrogen-enriched tetraphenylmethane-based porous organic polymers as efficient carbon dioxide and iodine adsorbents

0520883 - ÚOCHB 2021 RIV NL eng J - Journal Article
Hu, X. - Wang, H. - Faul, C. F. J. - Wen, Jin - Wei, Y. - Zhu, M. - Liao, Y.
A crosslinking alkylation strategy to construct nitrogen-enriched tetraphenylmethane-based porous organic polymers as efficient carbon dioxide and iodine adsorbents.
Chemical Engineering Journal. Roč. 382, Feb 15 (2020), č. článku 122998. ISSN 1385-8947. E-ISSN 1873-3212
Institutional support: RVO:61388963
Keywords : porous organic polymers * Buchwald-Hartwig cross-coupling * crosslinking alkylation strategy * carbon capture * iodine capture
OECD category: Physical chemistry
Impact factor: 13.273, year: 2020
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S1385894719324088?via%3Dihub

Porous organic polymers (POPs) have received great attention worldwide and become attractive for capture and storage of carbon dioxide (CO2) and radioactive iodine (I-129 or I-131). Here we present modified tetraphenylmethane (TPM)-based POPs i.e. mPTPMs (synthesized via Buchwald-Hartwig cross-coupling of a tetrakis (4-bromophenyl) methane core and selected aryl diamine linkers, followed by a crosslinking alkylation strategy using diiodomethane as a crosslinker). This new strategy offers mPTPMs with high surface areas up to 640m(2)/g and uniform ultramicropore size of 0.6 nm, where porous properties are readily controlled by the substitutions of linkers and the crosslinker. Finally, as-synthesized mPTPMs exhibit good CO2 uptake capacities (0.106 g/g at 273 K and 1 bar) and high iodine uptake capacities up to 3.94 g/g within only 2.5 h, representing fast and efficient adsorbents for wider environmental applications.
Permanent Link: http://hdl.handle.net/11104/0305550