Sintesis, karakterisasi dan katalisis Mg1-xCuxF2 dalam reaksi asetilasi gliserol

Khotiba, Lisa Aini Isyakdia (2015) Sintesis, karakterisasi dan katalisis Mg1-xCuxF2 dalam reaksi asetilasi gliserol. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini telah dilakukan sintesis Mg1-xCuxF2. Struktur Kristal dikarakterisasi dengan Difraksi Sinar-X (XRD), keasaman katalis ditentukan dengan piridin-FTIR serta luas permukaan spesifik(SBET) diukur dengan adsorpsi gas nitrogen.Reaksi katalisis dilakukan pada reaksi asetilasi gliserol. Hasil XRD menunjukkan katalis Mg1-xCuxF2 memiliki struktur MgF2 tetragonal. Keasaman katalis menunjukkan adanya sisi asam Lewis dan sisi asam Brønsted. Konversi gliserol tertinggi mendekati 100% dicapai oleh katalis Mg0,95Cu0,05F2, Mg0,9Cu0,1F2 dan katalis Mg0,85Cu0,15F2. Selektivitas tertinggi terhadap MAG, DAG dan TAG dicapai oleh katalis Mg0,975Cu0,025F2 masingmasing sebesar 31,39 %, 50,69 % dan 5,07 %. Aktivitas katalisis ini dipengaruhi oleh sisi keasaman Brønsted. ============================================================================================================= Synthesis catalyst Mg1-xCuxF2 have been investigated. Characterization of catalyst used X-ray diffraction (XRD) to determine the crystal structure of the catalyst, pyridine-FTIR to determine the acidity both Lewis acidity and Brønsted acidity and nitrogen adsorption to determine the specific surface area (SBET) of the catalyst.Result of XRD showed catalyst Mg1-xCuxF2 have MgF2 structure tetragonal. Catalyst acidity showed Lewis acidity and Brønsted acidity. The best glycerol conversion up to 100% are catalyst Mg0.950Cu0.050F2, Mg0.900Cu0.100F2 and katalis Mg0.850Cu0.150F2. The best selectivity of MAG, DAG and TAG are catalyst Mg0.975Cu0.025F2 respectively 31,39 %, 50,69 % dan 5,07 %. Catalyst activity is influenced by Brønsted acidity.

Item Type: Thesis (Undergraduate)
Additional Information: RSKi 541.395 Kho s
Uncontrolled Keywords: Doping; asetilasi gliserol; MgF2; Mg1-xCuxF2
Subjects: Q Science > QD Chemistry > QD501 Catalysis. Catalysts.
Divisions: Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User: - Taufiq Rahmanu
Date Deposited: 25 Jun 2019 04:38
Last Modified: 25 Jun 2019 04:38
URI: http://repository.its.ac.id/id/eprint/63242

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