Qurrota, A'yuni (2012) Kinerja Katalis Co₃O₄, CaF₂ dan Co₃O₄/CaF₂ pada Reaksi Sintesis Vitamin E. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada penelitian ini telah dipelajari sintesis, aktivitas dan selektivitas katalis Co304, CaF2 dan Co304/CaF2 dengan variasi loading Co 2,5; 5; 7,5; 10 dan 15% w/w pada reaksi sintesis vitamin E. Struktur katalis Co304 dan CaF2 masing-masing heksagonal dan sistem kubik, luas permukaan katalis semakin menurun seiring dengan meningkatnya loading, katalis memiliki sifat asam Lewis dan Bronsted. Penggunaan katalis berpendukung Co304/CaF2 menghasilkan produk yang lebih tinggi daripada katalis tunggal. Hasil katalisis optimum pada loading Co 7,5% dengan aktivitas mendekati 100%, yield dan selektivitas sebesar 97,30%. Yield dan Selektivitas dipengaruhi oleh sifat keasaman katalis yaitu asam Lewis.
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The synthesis, catalytic activity, and selectivity of C03O4, CaF2, and Co304/CaF2 catalyst with 2,5; 5; 7,5; 10 and 15% w/w loading variation of Co were investigated. The Catalytic testing were performed in the synthesis reaction of vitamin E. The XRD characterization showed the hexagonal and cubic system for Co304 and CaF2. The surface area (SBET) decreases with increasing the Co loading.. Acidity test results through pyridine adsorption method using FTIR analysis showed the catalysts have the Lewis and Bronsted acid properties. The catalytic result showed the optimum catalyst for Co loading 7,5% with almost 100% activity and 97,30% for yield and selectivity. Yield and selectivity was influence by Lewis acid.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKi 541.395 A`yu k |
| Uncontrolled Keywords: | Co304/CaF2, Asam Lewis dan Bronsted, Sintesis vitamin E, Co304/CaF2, Lewis and Bronsted acid, Vitamin E synthesis |
| Subjects: | Q Science > QD Chemistry > QD481 Chemical structure. |
| Divisions: | Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | magang . |
| Date Deposited: | 19 Oct 2026 06:56 |
| Last Modified: | 19 Oct 2026 06:57 |
| URI: | http://repository.its.ac.id/id/eprint/145673 |
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