A robust and porous titanium metal-organic framework for gas adsorption, CO2 capture and conversion

Xuze Pan; Xuezhen Si; Xiaoying Zhang; Qingxia Yao; Yunwu Li; Wenzeng Duan; Yi Qiu; Jie Su; Xianqiang Huang

doi:10.1039/d2dt03158b

A robust and porous titanium metal-organic framework for gas adsorption, CO₂ capture and conversion

Dalton Trans. 2023 Mar 21;52(12):3896-3906. doi: 10.1039/d2dt03158b.

Authors

Xuze Pan¹, Xuezhen Si¹, Xiaoying Zhang¹, Qingxia Yao¹, Yunwu Li¹, Wenzeng Duan¹, Yi Qiu², Jie Su², Xianqiang Huang¹

Affiliations

¹ School of Chemistry and Chemical Engineering, and Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, China. yaoqxlcu@163.com.
² College of Chemistry and molecular engineering, Peking University, Beijing, 100871, PR China. qiuyi@pku.edu.cn.

PMID: 36877532
DOI: 10.1039/d2dt03158b

Abstract

A robust and porous titanium metal-organic framework (Ti-MOF; LCU-402) has been hydrothermally synthesized through combining a tetranuclear Ti₂Ca₂(μ₃-O)₂(μ₂-H₂O)_1.3(H₂O)₄(O₂C-)₈ cluster and a tritopic 1,3,5-benzene(tris)benzoic (BTB) ligand. LCU-402 shows remarkable stability and permanent porosity for CO₂, CH₄, C₂H₂, C₂H₄, and C₂H₆ gas adsorption. Moreover, LCU-402 as a heterogeneous catalyst can smoothly convert CO₂ under a simulated flue atmosphere into organic carbonate molecules by cycloaddition reactions of CO₂ and epoxides, indicating that LCU-402 might be a promising catalyst candidate in practical applications. We are confident that the identification of a persistent titanium-oxo building unit would accelerate the development of new porous Ti-MOF materials.