Asymmetrical Modification of Cyclopentadienyl Cobalt in Eu-MOF for C<sub>2</sub>H<sub>2</sub>/CO<sub>2</sub> Separation
Xiaokang Wang, Hongyan Liu, Meng Sun, Fei Gao, Xueying Feng, Mingming Xu, Hui Chen, Kun Yao, Weidong Fan, Daofeng Sun
Abstract
The development of novel adsorption materials is of significance for the efficient and low-energy purification of acetylene (C 2 H 2 ). Emerging metal–organic framework (MOF) adsorbents demonstrate great application prospects in the field of gas adsorption and separation. Herein, we synthesized a Eu-MOF asymmetrically modified with cyclopentadienyl cobalt exhibiting two different types of cages, denoted as UPC-119. Adsorption isotherms and dynamic breakthrough curves confirm its potential in C 2 H 2 /CO 2 separation, which is further evidenced by theoretical simulations. The high adsorption capacity and low adsorption enthalpy render UPC-119 as a promising adsorbent for C 2 H 2 /CO 2 separation with ease of regeneration.