H3PW12O40 encapsulation by nanoporous metal organic framework HKUST-1: Synthesis, characterization, activity and stability

Hybrid composite material was obtained through encapsulation of H3PW12O40 (PW) into HKUST-1 (Cu3(BTC)2, BTC=1,3,5-benzenetricarboxylic acid). The catalyst was characterized by various techniques including powder X-ray diffraction, Fourier transform infrared (FT-IR), scanning electron microscopy (SEM...

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Main Authors: Ezzat Rafiee, Narges Nobakht
Format: Article
Language:English
Published: Slovenian Chemical Society 2016-04-01
Series:Acta Chimica Slovenica
Subjects:
Online Access:https://journals.matheo.si/index.php/ACSi/article/view/2236
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author Ezzat Rafiee
Narges Nobakht
author_facet Ezzat Rafiee
Narges Nobakht
author_sort Ezzat Rafiee
collection DOAJ
description Hybrid composite material was obtained through encapsulation of H3PW12O40 (PW) into HKUST-1 (Cu3(BTC)2, BTC=1,3,5-benzenetricarboxylic acid). The catalyst was characterized by various techniques including powder X-ray diffraction, Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), laser particle size analyzer. The acidity of the catalyst was determined by chemisorption of pyridine and potentiometric titration. This nano catalyst was successfully used for the synthesis of various β-keto enol ethers and was easily recycled and reused several times without significant loss of its activity. The presence of the PW in PW/HKUST-1 and reused PW/HKUST-1 structure, eliminating any doubt about collapse of the HKUST-1 after catalytic reaction and can be followed by FT-IR, XRD and SEM techniques. Brönsted and Lewis acidity of the PW/HKUST-1 catalyst was distinguished by studying the FT-IR. The strength and dispersion of the protons on PW/HKUST-1 was considerably high and active surface protons became more available for reactant.
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spelling doaj.art-6d084782da664203b8568e61de532e562022-12-21T17:01:00ZengSlovenian Chemical SocietyActa Chimica Slovenica1318-02071580-31552016-04-0163230931610.17344/acsi.2016.2236341H3PW12O40 encapsulation by nanoporous metal organic framework HKUST-1: Synthesis, characterization, activity and stabilityEzzat Rafiee0Narges Nobakht1Inorganic Chemistry Department, Faculty of Chemistry, Razi University, Kermanshah IranRazi UniversityHybrid composite material was obtained through encapsulation of H3PW12O40 (PW) into HKUST-1 (Cu3(BTC)2, BTC=1,3,5-benzenetricarboxylic acid). The catalyst was characterized by various techniques including powder X-ray diffraction, Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), laser particle size analyzer. The acidity of the catalyst was determined by chemisorption of pyridine and potentiometric titration. This nano catalyst was successfully used for the synthesis of various β-keto enol ethers and was easily recycled and reused several times without significant loss of its activity. The presence of the PW in PW/HKUST-1 and reused PW/HKUST-1 structure, eliminating any doubt about collapse of the HKUST-1 after catalytic reaction and can be followed by FT-IR, XRD and SEM techniques. Brönsted and Lewis acidity of the PW/HKUST-1 catalyst was distinguished by studying the FT-IR. The strength and dispersion of the protons on PW/HKUST-1 was considerably high and active surface protons became more available for reactant.https://journals.matheo.si/index.php/ACSi/article/view/2236Heteropoly acidMetal-organic frameworkβ-Keto enol ethersHeterogeneous catalystsHybrid composite material
spellingShingle Ezzat Rafiee
Narges Nobakht
H3PW12O40 encapsulation by nanoporous metal organic framework HKUST-1: Synthesis, characterization, activity and stability
Acta Chimica Slovenica
Heteropoly acid
Metal-organic framework
β-Keto enol ethers
Heterogeneous catalysts
Hybrid composite material
title H3PW12O40 encapsulation by nanoporous metal organic framework HKUST-1: Synthesis, characterization, activity and stability
title_full H3PW12O40 encapsulation by nanoporous metal organic framework HKUST-1: Synthesis, characterization, activity and stability
title_fullStr H3PW12O40 encapsulation by nanoporous metal organic framework HKUST-1: Synthesis, characterization, activity and stability
title_full_unstemmed H3PW12O40 encapsulation by nanoporous metal organic framework HKUST-1: Synthesis, characterization, activity and stability
title_short H3PW12O40 encapsulation by nanoporous metal organic framework HKUST-1: Synthesis, characterization, activity and stability
title_sort h3pw12o40 encapsulation by nanoporous metal organic framework hkust 1 synthesis characterization activity and stability
topic Heteropoly acid
Metal-organic framework
β-Keto enol ethers
Heterogeneous catalysts
Hybrid composite material
url https://journals.matheo.si/index.php/ACSi/article/view/2236
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