日本ゼオライト学会　刊行物 Publication of Japan Zeolite Association

CO₂ separation and conversion are one of most important challenges in chemistry. We have developed a new class of porous solids, porous coordination polymer (PCP) and metal organic framework (MOF) for CO₂ separation and conversion. PCP are constructed from metal ions and organic ligands, and their high surface area, chemical functionality are promising to have high performance of CO₂ separation/conversion. For CO₂ separation, PCP could have both high CO₂ separation property and low energy consumption of CO₂ release, and it contribute to reduce the total energy consumption of gas separation process. In terms of CO₂ conversion, we synthesize the composite catalysts composed of PCP and metal nanoparticle. The regular and high porosity of PCP enables to encapsulate the catalytically active metal nanoparticle, and the PCP-nanoparticle composites are promising to have high CO₂ conversion property because of high diffusivity of CO₂ gas into the composite, and high reactivity of well dispersed metal nanoparticle in the framework. Chemical stability and large scale synthesis of these materials have also been investigated by both academia and industrial companies. In this short review, we present the recent results on these topics.