High CO2/CH4 Selectivity of a Flexible Copper(II) Porous Coordination Polymer under Humid Conditions. Issue 10 (3rd September 2015)

• Record Type: Journal Article
• Authors: Noro, Shin‐ichiro; Matsuda, Ryotaro; Hijikata, Yuh; Inubushi, Yasutaka; Takeda, Sadamu; Kitagawa, Susumu; Takahashi, Yukiko; Yoshitake, Masashi; Kubo, Kazuya; Nakamura, Takayoshi
• Is Part Of: ChemPlusChem. Volume 80:Issue 10(2015:Oct.)
• Page Start: 1517
• Page End: 1524
• Publication Date: 2015-09-03
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1002/cplu.201500278
• Languages: English
• ISSNs: 2192-6506

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The development of highly efficient CO₂ separation materials is very important for environmental preservation and energy conservation. Crystalline porous coordination polymers (PCPs)/metal–organic frameworks are one of a number of promising types of porous materials for CO₂ separation because of their controllable pore size, shape and surface function. Simultaneously, the unique structural flexibility of PCPs affords both high CO₂ selectivity and inexpensive regeneration. However, this family of materials suffers from the coexistence of water that destroys the framework of PCPs and its adsorption in the pores is greater than that of CO₂, which results in a deterioration in CO₂‐separation performance. Herein, a flexible and hydrophobic Cu^II PCP that is stable towards water has been designed and synthesised. This PCP has extremely high adsorption selectivity for CO₂ over CH₄, derived from its structural flexibility. Furthermore, the obtained water‐tolerant flexible PCP, under CO₂/CH₄ mixed‐gas conditions, exhibits highly selective CO₂ adsorption over CH₄, even in the presence of water.</p> </abstract>