Two Isostructural Titanium Metal-Organic Frameworks for Light Hydrocarbon Separation

Yayong Sun; Mei-Yan Gao; Yuexin Sun; Dong-Fei Lu; Fei Wang; Jian Zhang

doi:10.1021/acs.inorgchem.1c02179

Two Isostructural Titanium Metal-Organic Frameworks for Light Hydrocarbon Separation

Inorg Chem. 2021 Sep 20;60(18):13955-13959. doi: 10.1021/acs.inorgchem.1c02179. Epub 2021 Sep 9.

Authors

Yayong Sun^{1

2}, Mei-Yan Gao¹, Yuexin Sun¹, Dong-Fei Lu¹, Fei Wang^{1

2}, Jian Zhang¹

Affiliations

¹ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
² School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China.

PMID: 34498867
DOI: 10.1021/acs.inorgchem.1c02179

Abstract

Presented here is the light hydrocarbon separation of titanium metal-organic frameworks (Ti-MOFs). Compared with the cyclic Ti-oxo cluster (Ti₈O₈(CO₂)₁₆, Ti₈Ph), porous structures of FIR-125 and FIR-126 (FIR = Fujian Institute Research) can effectively improve the adsorption amounts of light hydrocarbons. The introduction of different functional groups and Ti-oxo clusters with small window sizes enables them to exhibit the highly selective separation of C₂ and C₃ hydrocarbons versus methane in an ambient atmosphere. The results show that Ti-MOFs are potential porous adsorbents for the separation of light hydrocarbons.