Self-Assembly of Soft MOF Particles into Hierarchical Porous Structures

2022 Fiscal Year Final Research Report

• Project/Area Number: 18KK0411
• Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))
• Allocation Type: Multi-year Fund
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Kyoto University
• Principal Investigator: Satoshi WATANABE 京都大学, 工学研究科, 准教授 (80402957)
• Project Period (FY): 2019 – 2022
• Keywords: Metal-organic framework / 自己集積 / コアシェル粒子 / ゲート吸着 / スラグ流

Outline of Final Research Achievements

Soft metal-organic frameworks (MOFs) are an emerging nanoporous material that exhibits peculiar adsorption characteristics due to the flexibility of crystal frameworks. However, for practical applications as adsorbents, it is strongly required to establish a shaping technique that does not degrade the adsorption characteristics. In this study, we tackled the core-shell structure formation, in which soft MOF particles are core, to improve their functionality and the establishment of a self-assembly process to fabricate macroscopic aggregated structures.

Free Research Field

コロイド分散系工学

Academic Significance and Societal Importance of the Research Achievements

Soft MOFは，新規な吸着材としてここ10ー15年の間で急速にその存在感を増している。特に，ナノ粒子にすることでバルク結晶には見られない吸着特性を示すが，ナノ粒子化によって，ハンドリングは難しくなり，またペレット化にも工夫が求められる。本研究における，階層型の多孔構造を利用したペレット化手法は，吸着材としてのSoft MOFの実用化を大いに加速させるものと期待される。