Laser‐Induced Porosity Engineering of Metal‐Organic Frameworks for Enhanced CO 2 /CH 4 Adsorption Properties
Source abstract
Abstract
ABSTRACT Effective adsorption separation of CO 2 /CH 4 requires porous materials with high porosity and tunability, such as metal‐organic frameworks (MOFs). However, structural defects and high production costs often limit their practical application. Here, we propose a laser‐induced post‐synthetic modification technique, termed Laser‐Induced Porosity Engineering (LIPE), to enhance CO 2 /CH 4 separation performance through defect‐driven pore refinement in MOFs. Using low‐energy, massless near‐infrared laser irradiation, structural rearrangement of defective HKUST‐1 was induced through vibrational excitation followed by rapid cooling, leading to an unprecedented transformation of mesopores into micropores. This transformation resulted in a 94% increase in surface area and a 75% improvement in CO 2 uptake. Moreover, simultaneously generated polar surface functionalities synergistically enhanced CO 2 selectivity. Kinetic studies under temperature swing conditions revealed enhanced desorption rates and stable cyclic performance. LIPE was further applied to defective MOF‐801 synthesized from low‐cost precursors, demonstrating its potential as a scalable and economically viable strategy for upgrading porous materials with compromised structural quality.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Covalent Organic Framework Applications · Carbon Dioxide Capture Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Advanced Science and Technology Convergence Kyungpook National University Sangju‐si Gyeongsangbuk‐do Republic of Korea
Composites Research Division Korea Institute of Materials Science (KIMS) Changwon Gyeongsangnam‐do Republic of Korea
School of Chemical Engineering Yeungnam University Gyeongsan Republic of Korea
Department of Precision Mechanical Engineering Kyungpook National University Sangju‐si Gyeongsangbuk‐do Republic of Korea
Convergence Research Center of Mechanical and Chemical Engineering Kyungpook National University Sangju‐si Gyeongsangbuk‐do Republic of Korea
Department of Energy Chemical Engineering Kyungpook National University Sangju‐si Gyeongsangbuk‐do Republic of Korea
Research Institute of Industrial Science & Technology (RIST) Gwangyang‐si Jeollanam‐do Republic of Korea
Department of Chemical Engineering Pukyong National University Nam‐gu Busan Republic of Korea
Funding
Ministry of Trade, Industry and Energy · National Research Foundation of Korea
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