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An Uncommon Carboxyl‐Decorated Metal–Organic Framework with Selective Gas Adsorption and Catalytic Conversion of CO 2
Author(s) -
Li YongZhi,
Wang HaiHua,
Yang HongYun,
Hou Lei,
Wang YaoYu,
Zhu Zhonghua
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201704027
Subject(s) - isophthalic acid , catalysis , cycloaddition , adsorption , metal organic framework , chemistry , propylene oxide , linker , oxide , polymer chemistry , inorganic chemistry , ethylene oxide , organic chemistry , polymer , copolymer , operating system , computer science , polyester , terephthalic acid
A new three‐dimensional (3D) framework, [Ni(btzip)(H 2 btzip)] ⋅ 2 DMF ⋅ 2 H 2 O ( 1 ) (H 2 btzip=4,6‐bis(triazol‐1‐yl)isophthalic acid) as an acidic heterogeneous catalyst was constructed by the reaction of nickel wire and a triazolyl‐carboxyl linker. Framework 1 possesses intersected 2D channels decorated by free COOH groups and uncoordinated triazolyl N atoms, leading to not only high CO 2 and C 2 H 6 adsorption capacity but also significant selective capture for CO 2 and C 2 H 6 over CH 4 and CO in 273–333 K. Moreover, 1 reveals chemical stability toward water. Grand Canonical Monte Carlo simulations confirmed the multiple CO 2 ‐ and C 2 H 6 ‐philic sites. As a result of the presence of accessible Brønsted acidic COOH groups in the channels, the activated framework demonstrates highly efficient catalytic activity in the cycloaddition reaction of CO 2 with propylene oxide/4‐chloromethyl‐1,3‐dioxolan‐2‐one/3‐butoxy‐1,2‐epoxypropane into cyclic carbonates.