Probing dynamics of carbon dioxide in a metal-organic framework under high pressure by high-resolution solid-state NMR

Munehiro Inukai; Takuya Kurihara; Yasuto Noda; Weiming Jiang; Kiyonori Takegoshi; Naoki Ogiwara; Hiroshi Kitagawa; Koichi Nakamura

doi:10.1039/d0cp01216e

Probing dynamics of carbon dioxide in a metal-organic framework under high pressure by high-resolution solid-state NMR

Phys Chem Chem Phys. 2020 Jul 8;22(26):14465-14470. doi: 10.1039/d0cp01216e.

Authors

Munehiro Inukai¹, Takuya Kurihara², Yasuto Noda², Weiming Jiang², Kiyonori Takegoshi², Naoki Ogiwara², Hiroshi Kitagawa², Koichi Nakamura¹

Affiliations

¹ Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minami-Josanjima-Cho, Tokushima 770-8506, Japan. inukai.munehiro@tokushima-u.ac.jp.
² Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.

PMID: 32400799
DOI: 10.1039/d0cp01216e

Abstract

The application of high-resolution NMR analysis for CO2 adsorbed in a MOF under high pressure is reported for the first time. The results showed that CO2 adsorbed in MOF-74 had an unusually slow mobility (τ ∼ 10-8 s). CO2-CO2 interactions suppressed the mobility of CO2 under high pressure, which, in turn, would have contributed to the stability of CO2 at the adsorption sites.