Enhanced CO_(2) adsorption properties with bimetallic ZnCe-MOF prepared using a microchannel reactor

作     者：Pin Cui Ying Tang Aixia Guo Chenxu Wang Minmin Liu Wencai Peng Feng Yu 

作者机构：Key Laboratory for Green Processing of Chemical Engineering of Xinjiang BingtuanSchool of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003China Carbon Neutralization and Environmental Catalytic Technology LaboratoryBingtuan Industrial Technology Research InstituteShihezi UniversityShihezi 832003China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿(英文版))

年 卷 期：2025年第19卷第2期

页      面：93-102页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by the Xinjiang Science and Technology Program(Grant No.2023TSYCCX0118) 

主　　题：Metal-organic framework microchannel reactor reaction mechanism CO_(2)capture adsorption 

摘      要：The use of metal-organic frameworks (MOFs) as CO_(2)-gas-capture materials has attracted extensive research attention. In this study, two types of MOFs—Zn-MOF and ZnCe-MOF—were synthesized utilizing the microchannel reaction method, with water being employed as the solvent. The specific surface area, pore size, and pore volume of Zn-MOF and ZnCe-MOF were 1566.4 and 15.6 m^(2)·g^(-1), 0.65 and 7.32 nm, as well as 1.65 and 0.03 cm^(3)·g^(-1), respectively. Furthermore, Ce doping not only increased the pore size of ZnCe-MOF but also its adsorption energy from −0.19 eV (Zn-MOF) to −0.53 eV (ZnCe-MOF). At 298 K, the adsorption capacities of Zn-MOF and ZnCe-MOF were 0.66 and 0.74 mmol·g^(-1), respectively. In addition, the CO_(2) adsorption behaviors of Zn-MOF and ZnCe-MOF were linear and logarithmic, respectively. Theoretical calculations show that the results of adsorption thermodynamic simulations were consistent with the experiments. Thus, the preparation of ZnCe-MOF materials using a microchannel reactor provides a new approach for the continuous preparation of MOFs.