SavedAdd your journal

Journals / Anadolu Üniversitesi Bilim ve Teknoloji Dergisi :A-Uygulamalı Bilimler ve Mühendislik / 2018 / Cilt: 19 - Sayı: 1

HETEROGENIZATION OF HOMOGENEOUS PERFLUOROTHIOPHENE Rh(I) COMPLEX AND EXAMINATION OF HYDROGENATION ACTIVITY IN scCO2 MEDIA

Filiz YILMAZ
İbrahim KANİ
Yusuf KARAAĞAÇ
Pages
32–42
Publication Date
2022-10-11
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Also, it was found that the catalyst remains active at least throughout ten cycles.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Rhodium(I) complex of perfluorinated thiophene ligand was synthesized and heterogenized over the modified silica support.SEM, XRF, TGA and BET methods were used for the characterization of the heterogenized catalyst (SiAPTES-RhL).Heterogenization of catalyst and the catalytic activity tests were carried out in scCO2 as a greener alternative to traditionalreaction media.
📊
Key Findings & Data:The catalytic activities of complex were investigated in hydrogenation reactions of some alkenes such asstyrene, 1-octene and cyclohexene. 100% ethyl benzene conversion was observed at 370 K, 10 bar H2 and 1900 psi totalpressure in styrene hydrogenation.
💡
Conclusion & Impact:Also, it was found that the catalyst remains active at least throughout ten cycles.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Rhodium(I) complex of perfluorinated thiophene ligand was synthesized and heterogenized over the modified silica support.SEM, XRF, TGA and BET methods were used for the characterization of the heterogenized catalyst (SiAPTES-RhL).Heterogenization of catalyst and the catalytic activity tests were carried out in scCO2 as a greener alternative to traditionalreaction media. The catalytic activities of complex were investigated in hydrogenation reactions of some alkenes such asstyrene, 1-octene and cyclohexene. 100% ethyl benzene conversion was observed at 370 K, 10 bar H2 and 1900 psi totalpressure in styrene hydrogenation. Also, it was found that the catalyst remains active at least throughout ten cycles. Similarly,the activity of the catalyst in the hydrogenation of 1-octene and cyclohexene was investigated. For 1-octene, 100% n-octanselectivity was obtained at 370 K and 10 Bar H2. The catalyst was found to be effective at 370 K while the activity was low at350 and 360 K in cyclohexen hydrogenation. When compared with the homogenous system, the heterogenized catalyst hadmore activity and selectivity and also reusability without losing its activity.

🔖

Cite This Article

YILMAZ, F., KANİ, İ., KARAAĞAÇ, Y. (2022). HETEROGENIZATION OF HOMOGENEOUS PERFLUOROTHIOPHENE Rh(I) COMPLEX AND EXAMINATION OF HYDROGENATION ACTIVITY IN scCO2 MEDIA. Anadolu Üniversitesi Bilim ve Teknoloji Dergisi :A-Uygulamalı Bilimler ve Mühendislik, Cilt: 19 - Sayı: 1, 32–42. https://ajindex.com/articles/438221

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (9)

  1. Lopez Castillo Z, Flores R, Kani İ, Akgerman A, Fackler JP. Evaluation of Polymer Supported Rhodium Catalyst in 1-Octene Hydroformylation in Supercritical Carbondioxide. Ind. Eng. Chem. Res. 2003; 42: 3893- 3899 Merckle C, Blumel J. Improved rhodium hydrogenation catalysts immobilized on silica. Topics in Catalysis 2005; 34: 5-15.
  2. Ikuhara YH, Saito T, Takahashi S, Sasaki Y, Hirayama T. Synthesis and microstructural analysis of homogeneously dispersed nickel nanoparticles in amorphous silica. Journal of the American Ceramic Society 2012; 95: 524–529.
  3. Yilmaz F, Mutlu A, Ünver H, Kurtça M, Kani İ. Hydrogenation of olefins catalyzed by Pd (II) complexes containing a perfluoroalkylated S-O chelating ligand in supercritical CO2 and organic solvents. Journal of Supercritical Fluids 2010; 54: 202-209.
  4. Wan Y, Wan Y, Zhang F, Lu Y, Li H. Immobilization of Ru(II) complex on functionalized SBA15 and its catalytic performance in aqueous homoallylic alcohol isomerization. Journal of Molecular Catalysis A Chemical 2007; 267: 165–172. Opanasenko M, Štěpnička P and Čejka J. Heterogeneous Pd catalysts supported on silica matrices. RSC Adv 2014; 4: 65137-65162.
  5. Zois D, Vartzouma C, Deligiannakis Y, Hadjiliadis N, Casella L, Monzani E, Louloudi M. Active catalytic centers in silica-supported Cu(II) and Mn(II) biomimetic complexes: Correlation between catalytic and EPR data. Journal of Molecular Catalysis A: Chemical 2007; 261: 306–317.
  6. Barbaro P, Liguori F. Heterogenized homogeneous catalysts for fine chemicals production: materials and processes. Springer, Firenze, Italy, 2010. Kirschning A. Immobilized Catalysts: solid phases, ımmobilization and application. Springer, Germany, 2004. Satterfield CN. Heterogeneous catalysis in practise. McGraw-Hill, New York, NY, USA, 1980. Cole-Hamilton DJ. Homogeneous catalysis-new approaches to catalyst seperation, recovery, and recycling. Science 2003; 299: 1702-1706.
  7. Jessop PG, Ikariya T, Noyori R. Homogeneous Catalysis in Supercritical Fluids. Chem Rev 1999; 99: 475-493.
  8. Sellin MF, Cole-Hamilton DJ. Hydroformylation reactions in supercritical carbon dioxide using insoluble metal complexes. J Chem Soc Dalton Trans 2000; 1681-1683. Zosel K. Separation with Supercritical Gases: Practical Applications. Angew Chem Int Ed Engl 1978; 17: 702– 09. Jessop PG, Leitner W. Chemical Synthesis Using Super-critical Fluids; New York, NY, USA: Wiley, 1999.
  9. Wells S, DeSimone JM. CO2 Technology Platform: An Impor-tant Tool for Environmental Problem Solvin