Preparation of a Composite of Sulfated Zirconia/Metal Organic Framework and its Application in Esterification Reaction

Park, Eun Young; Ḥasan, Zubair; Ahmed, Imteaz; Jhung, Sung Hwa

doi:10.5012/bkcs.2014.35.6.1659

Cited by 8 publications

(7 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…esterification,143 and isomerization reaction106 are widely used as test reaction for the evaluation of the Lewis-acid 120 as well as Brønsted acid144 catalysis of MOFs. The active metal sites should be easily accessible to substrate molecules and should be solvent free for optimal catalytic activity.…”

mentioning

confidence: 99%

Metal–organic frameworks: versatile heterogeneous catalysts for efficient catalytic organic transformations

et al. 2015

View full text Add to dashboard Cite

Novel catalytic materials are highly demanded to perform a variety of catalytic organic reactions. MOFs combine the benefits of heterogeneous catalysis like easy post reaction separation, catalyst reusability, high stability and homogeneous catalysis such as high efficiency, selectivity, controllability and mild reaction conditions. The possible organization of active centers like metallic nodes, organic linkers, and their chemical synthetic functionalization on the nanoscale shows potential to build up MOFs particularly modified for catalytic challenges. In this review, we have summarized the recent research progress in heterogeneous catalysis by MOFs and their catalytic behavior in various organic reactions, highlighting the key features of MOFs as catalysts based on the active sites in the framework. Examples of their post functionalization, inclusion of active guest species and metal nanoparticles have been discussed. Finally, the use of MOFs as catalysts for asymmetric heterogeneous catalysis and stability of MOFs has been presented as separate sections.

show abstract

mentioning

confidence: 99%

Metal–organic frameworks: versatile heterogeneous catalysts for efficient catalytic organic transformations

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The phase separation and regeneration of the heterogeneous system induced the separation of the solid catalyst as well as the phase containing the final product of the catalytic reaction. Overall, the TBA 6 ‐P 2 W 17 ‐SO 3 H cluster proved to be a very efficient catalyst, giving an excellent yield and selectivity of 98.7 and 99.0 %, respectively, at 70 °C in 20 min, which appeared to be largely enhanced compared with other examples reported so far …”

Section: Resultsmentioning

confidence: 99%

Modulation of Self‐Separating Molecular Catalysts for Highly Efficient Biomass Transformations

Lian

Chen

et al. 2020

Chemistry A European J

View full text Add to dashboard Cite

The energetically viable fabrication of stable and highly efficient solid acid catalysts is one of the key steps in large‐scale transformation processes of biomass resources. Herein, the covalent modification of the classical Dawson polyoxometalate (POMs) with sulfonic acids (‐SO3H) is reported by grafting sulfonic acid groups on the POM's surface followed by oxidation of (3‐mercaptopropyl)trimethoxysilane. The acidity of TBA6‐P2W17‐SO3H (TBA=tetrabutyl ammonium) has been demonstrated by using 31P NMR spectroscopy, clearly indicating the presence of strong Brønsted acid sites. The presence of TBA counterions renders the solid acid catalyst as a promising candidate for phase transfer catalytic processes. The TBA6‐P2W17‐SO3H shows remarkable activity and selectivity, excellent stability, and great substrate compatibility for the esterification of free fatty acids (FFA) with methanol and conversion into biodiesel at 70 °C with >98 % conversion of oleic acid in 20 min. The excellent catalytic performance can be attributed to the formation of a catalytically active emulsion, which results in a uniform catalytic behavior during the reaction, leading to efficient interaction between the substrate and the active sites of the catalyst. Most importantly, the catalyst can be easily recovered and reused without any loss of its catalytic activity owing to its excellent phase transfer properties. This work offers an efficient and cost‐effective strategy for large‐scale biomass conversion applications.

show abstract

“…Composite material composed of sulphated zirconia doped and MIL‐101 was synthesized and used in an esterification reaction. The catalytic activity of SZ/MIL‐101 was higher than that of pure SZ or MIL‐101 …”

Section: Introductionmentioning

confidence: 90%

Effect of sulphation on the catalytic activity of MIL‐101 and the activation energy of an esterification reaction

Yılmaz¹,

Sert²,

Atalay³

2018

Can J Chem Eng

View full text Add to dashboard Cite

Metal organic frameworks have been recently highlighted as promising materials for heterogeneous catalysts. In this study, MIL-101, a chromium-based metal organic framework was synthesized using the solvothermal method and functionalized through sulphation. The catalytic activities of MIL-101 and sulphated MIL-101 (MIL-101s) were tested in the esterification of acetic acid. The conversion of acetic acid increased from 73.7 to 86.2 % after sulphation at 363 K. These results prove that the sulphation of MIL-101 is an effective way to enhance the acidity and catalytic activity of MIL-101.The characterization of MIL-101 and MIL-101s was performed using FTIR, BET, XRD, TG-DTA, SEM/EDX, XPS, and potentiometric titration methods. A BET analysis showed that MIL-101 maintained its porosity after sulphation. The sulphation reduced the surface area and pore volume but increased the acidity.

show abstract

Preparation of a Composite of Sulfated Zirconia/Metal Organic Framework and its Application in Esterification Reaction

Cited by 8 publications

References 54 publications

Metal–organic frameworks: versatile heterogeneous catalysts for efficient catalytic organic transformations

Metal–organic frameworks: versatile heterogeneous catalysts for efficient catalytic organic transformations

Modulation of Self‐Separating Molecular Catalysts for Highly Efficient Biomass Transformations

Effect of sulphation on the catalytic activity of MIL‐101 and the activation energy of an esterification reaction

Contact Info

Product

Resources

About