Deciphering Mechanisms of CO2-Selective Recognition over Acetylene within Porous Materials

被引:1
|
作者
Zhang, Zhaoqiang [1 ,2 ]
Zhao, Dan [1 ]
机构
[1] Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore,117585, Singapore
[2] State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing,210023, China
来源
Chem and Bio Engineering | 2024年 / 1卷 / 05期
关键词
Carbon capture - Carbon sequestration - Direct air capture - Molecular recognition - Zero-carbon;
D O I
10.1021/cbe.4c00035
中图分类号
学科分类号
摘要
Reverse adsorption of carbon dioxide (CO2) from acetylene (C2H2) presents both significant importance and formidable challenges, particularly in the context of carbon capture, energy efficiency, and environmental sustainability. In this Review, we delve into the burgeoning field of reverse CO2/C2H2 adsorption and separation, underscoring the absence of a cohesive materials design strategy and a comprehensive understanding of the CO2-selective capture mechanisms from C2H2, in contrast to the quite mature methodologies available for C2H2-selective adsorption. Focusing on porous materials, the latest advancements in CO2-selective recognition mechanisms are highlighted. The review establishes that the efficacy of CO2 recognition from C2H2 relies intricately on a myriad of factors, including pore architecture, framework flexibility, functional group interactions, and dynamic responsive behaviors under operating conditions. It is noted that achieving selectivity extends beyond physical sieving, necessitating meticulous adjustments in pore chemistry to exploit the subtle differences between CO2 and C2H2. This comprehensive overview seeks to enhance the understanding of CO2-selective recognition mechanisms, integrating essential insights crucial for the advancement of future materials. It also lays the groundwork for innovative porous materials in CO2/C2H2 separation, addressing the pressing demand for more efficient molecular recognition within gas separation technologies. © 2024 The Authors. Co-published by Zhejiang University and American Chemical Society.
引用
收藏
页码:366 / 380
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