High CO2/N2/O2/CO separation in a chemically robust porous coordination polymer with low binding energy

Jingui Duan, Masakazu Higuchi, Rajamani Krishna, Tomokazu Kiyonaga, Yosuke Tsutsumi, Yohei Sato, Yoshiki Kubota, Masaki Takata, Susumu Kitagawa

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139 Citations (Scopus)

Abstract

Porous coordination polymers (PCPs), constructed from organic linkers and metal ions, can provide special pore environments for selective CO2 capture. Although many PCPs have been reported, a rational design for identifying PCPs that adsorb CO2 molecules with a low binding energy, high separation ability and high chemical stability remains a great challenge. Here, we propose and validate, experimentally and computationally, a new PCP, [La(BTN)DMF]·guest (PCP-1⊃guest), that has a large aromatic organic surface and a low binding energy for high CO2 separation from four-gas mixtures (CO2-N2-O2-CO) at ambient temperature. In addition, it shows good water and chemical stability; in particular, it is stable from pH = 2 to 12 at 100 °C, which is unprecedented for carboxylate-based PCPs.

Original languageEnglish
Pages (from-to)660-666
Number of pages7
JournalChemical Science
Volume5
Issue number2
DOIs
Publication statusPublished - 2014 Feb

ASJC Scopus subject areas

  • Chemistry(all)

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    Duan, J., Higuchi, M., Krishna, R., Kiyonaga, T., Tsutsumi, Y., Sato, Y., Kubota, Y., Takata, M., & Kitagawa, S. (2014). High CO2/N2/O2/CO separation in a chemically robust porous coordination polymer with low binding energy. Chemical Science, 5(2), 660-666. https://doi.org/10.1039/c3sc52177j