NDLI: Metal–organic frameworks HKUST-1 as porous matrix for encapsulation of basic ionic liquid catalyst: effect of chemical behaviour of ionic liquid in solvent

Content Provider	Springer Nature Link
Author	Luo, Qun xing An, Bo wen Ji, Min Park, Sang Eon Hao, Ce Li, Yan qin
Copyright Year	2014
Abstract	Ionic liquid hybrid MOFs composite materials, copper-based metal–organic frameworks HKUST-1 as porous matrix was used to encapsulate amino-functionalized basic ionic liquid (ABIL) catalyst by post-synthetic modification strategy under different solvents such as H$_{2}$O, ethanol and N,N-dimethylformamide. A series of characterization techniques such as PXRD, SEM, N$_{2}$ physical adsorption–desorption, ICP-OES, element analysis, FT-IR, DRS UV–Vis, XPS and TGA were employed to probe the textural properties, surface characteristics, variations in coordination environment of metal center and thermal stability of as-synthesized catalysts. Furthermore, the Knoevenagel condensation of benzaldehyde and malononitrile was used as a probe reaction to evaluate their catalytic performances. It was interesting to find that the chemical behaviour of ABIL dissolved in these solvent had a profound impact on synthesis of catalysts and their catalytic performances. In the weak alkaline and neutral environment, ABIL can be dissolved as molecular state and be well confined inside HKUST-1 nanocavities via Cu–NH$_{2}$ coordination bond. In particular, the alkalinity of ABIL dissolved ethanol solvent was the optimal environment for encapsulation of ABIL organocatalyst, and the as-synthesized heterogeneous catalyst demonstrated favourable structural property and excellent catalytic performance.
Starting Page	247
Ending Page	259
Page Count	13
File Format	PDF
ISSN	13802224
Journal	Journal of Porous Materials
Volume Number	22
Issue Number	1
e-ISSN	15734854
Language	English
Publisher	Springer US
Publisher Date	2014-12-02
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metal–organic framework Ionic liquid Encapsulation Chemical behaviour Catalysis Characterization and Evaluation of Materials Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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