Islam, Humaatul (2016) Sintesis Nanopartikel LiFePO4berbasis Batu Alam Tanah Laut, Kalimantan Selatan. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian Tugas Akhir dengan judul “Sintesis Nanopartikel LiFePO4 Berbasis Batu Alam Tanah Laut, Kalimantan Selatan” bertujuan untuk mensintesis batu besi Tanah Laut dengan bahan komersial Li2CO3 dan NH4H2PO4 menjadi serbuk LiFePO4 dengan ukuran nanopartikel dengan metode Sol-Gel serta mengkarakterisasi fasa yang terbentuk ketika serbuk mendapatkan temperatur kalsinasi 7000C dan waktu tahan yang berbeda (5 jam dan 10 jam). Karakterisasi dilakukan dengan menggunakan instrumen X-Ray Fluorescene (XRF), Differential Thermal Analysis and Thermogravimetry (DTA-TG), Atomic Absorption Spectroscopy (AAS), dan X-Ray Diffraction (XRD). Analisis hasil uji XRF menunjukkan bahwa terdapat unsur Fe sebesar 89,84% pada batu alam. Analisis hasil uji AAS menunjukkan bahwa setelah batu dilarutkan dalam HCl terdapat 180 ppm atom Fe dalam larutan tersebut. Analisis data XRD dilakukan dengan menggunakan perangkat lunak Match!, Rietica, dan MAUD. Proses sintesis sol-gel dengan bahan dasar batu besi Tanah Laut, Li2CO3, dan NH4H2PO4 dengan waktu kalsinasi di lingkungan argon selama 5 jam menghasilkan fasa-fasa yaitu LiFePO4, LiFeP2O7, dan Li3PO4 dengan ukuran kurang dari 100 nm. Distribusi ukuran fasa LiFePO4 pada sampel dengan waktu kalsinasi 5 jam relatif lebih homogen dibandingkan sampel 10 jam. Produk sintesis yang dikalsinasi 10 jam masih cenderung amorf dengan fraksi berat kristal LFP sebesar 5,02%, sedangkan kalsinasi 5 jam menghasilkan kristal LFP dengan fraksi berat relatif LFP yang lebih banyak, yaitu 5,12%.
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Thesis with the title of "Synthesis of LiFePO4 Nanoparticles Based on Natural Stone of Tanah Laut, South Kalimantan" served as the purpose to sythesized granite in Tanah Laut with Li2CO3 and NH4H2PO4 as commercial materials and turn it into nanoparticle dusts of LiFePO4 using the Sol-Gel methods and also chracterized the phase that formed when the dusts was put in calcination temperature (700°C) and different holding time (5 hours and 10 hours). Characterization was done using X-Ray Fluorescence (XRF), Atomic absorption Spectroscopy (AAS) and X-Ray Diffraction (XRD) instruments. The result of XRF test analysis showed that there was a 89,84% of Fe element on natural stone. The result of AAS test analysis showed that after the stone was dissolved in HCl, there was a 180 ppm of Fe atoms in the solution. The analysis of data from XRD test was done using the Match!, Rietica, MAUD software. The Sol-Gel synthesis process of Tanah Laut natural stone, Li2CO3, and NH4H2PO4 as basic material that have been put into 5 hours of calcination time within argon environment generated several phases namely LiFePO4, LiFeP2O7, and Li3PO4 with a size of less than 100 nm. The size distribution of LiFePO4 phase on the sample with 5 hours of calcination time was relatively more homogeneous than the one with 10 hours of calcination time. The synthesis product which have been calcined for 10 hours had a 5,02% of LFP crystal weight fraction, meanwhile the product which have been calcined for 5 hours generated LFP crystal with considerably more LFP weight fraction of 5,12%.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 620.5 Isl s |
| Uncontrolled Keywords: | Olivine, LFP, Metode Sol-Gel, Nanopartikel |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Users 13 not found. |
| Date Deposited: | 08 Jun 2017 05:50 |
| Last Modified: | 27 Dec 2018 01:53 |
| URI: | http://repository.its.ac.id/id/eprint/41533 |
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