A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Solvent-free "green" amidation of stearic acid for synthesis of biologically active alkylamides over iron supported heterogeneous catalysts
Tekijät: Maki-Arvela P, Zhu J, Kumar N, Eranen K, Aho A, Linden J, Salonen J, Peurla M, Mazur A, Matveev V, Murzin DY
Kustantaja: ELSEVIER SCIENCE BV
Julkaisuvuosi: 2017
Journal: Applied Catalysis A: General
Tietokannassa oleva lehden nimi: APPLIED CATALYSIS A-GENERAL
Lehden akronyymi: APPL CATAL A-GEN
Vuosikerta: 542
Aloitussivu: 350
Lopetussivu: 358
Sivujen määrä: 9
ISSN: 0926-860X
eISSN: 1873-3875
DOI: https://doi.org/10.1016/j.apcata.2017.06.006
Tiivistelmä
Stearoyl ethanolamine was synthesized by amidation of stearic acid with ethanolamine in solventless conditions. Iron containing heterogeneous catalysts supported on SiO2, Al2O3, Beta (BEA), ZSM-12 (MTW) and Ferrierite (FER) were used in this work. Sn-modified Ferrierite and H-Ferrierite were also studied for comparison. Fe modified catalysts synthesized using solid state ion-exchange and evaporation impregnation methods, were thoroughly characterized with X-ray powder diffraction, scanning electron microscope, FTIR with pyridine, nitrogen adsorption, energy dispersive X-ray microanalysis and Mossbauer spectroscopy. The highest conversion was obtained with Fe-H-FER-20 at 140 degrees C in 1 h giving 61% conversion and 98% selectivity towards the desired amide. The catalytic performance in terms of turnover frequency per mole of iron was achieved with the catalyst exhibiting the largest amount of Fes(3+) species, optimum acidity and a relatively low Bronsted to Lewis acid site ratio.
Stearoyl ethanolamine was synthesized by amidation of stearic acid with ethanolamine in solventless conditions. Iron containing heterogeneous catalysts supported on SiO2, Al2O3, Beta (BEA), ZSM-12 (MTW) and Ferrierite (FER) were used in this work. Sn-modified Ferrierite and H-Ferrierite were also studied for comparison. Fe modified catalysts synthesized using solid state ion-exchange and evaporation impregnation methods, were thoroughly characterized with X-ray powder diffraction, scanning electron microscope, FTIR with pyridine, nitrogen adsorption, energy dispersive X-ray microanalysis and Mossbauer spectroscopy. The highest conversion was obtained with Fe-H-FER-20 at 140 degrees C in 1 h giving 61% conversion and 98% selectivity towards the desired amide. The catalytic performance in terms of turnover frequency per mole of iron was achieved with the catalyst exhibiting the largest amount of Fes(3+) species, optimum acidity and a relatively low Bronsted to Lewis acid site ratio.
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