ROSA ROSMITA, SEPTI (2024) PEMANFAATAN BESI OKSALAT DARI LIMBAH MILL-SCALE MENGGUNAKAN METODE REDUKSI FOTOKIMIA UNTUK BAHAN AKTIF KATODA LiFePO4. S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.

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Abstract

The utilization of steel industry waste (mill-scale) as the active material of LiFePO4 battery cathode has been successfully carried out by the solid state reaction method using FeC2O4.2H2O and Fe2O3 from steel industry waste (mill-scale) synthesized by photochemical reduction method. In comparison, LiFePO4 was also synthesized by the same method for commercial FeC2O4 and Fe2O3 precursors. SEM-EDX and XRD characterization of photochemical and commercial reduction FeC2O4.2H2O and Fe2O3 precursor samples as well as photochemical and commercial reduction LiFePO4, FeC2O4 and Fe2O3 precursors have been performed. Where the crystal structure of FeC2O4.2H2O and Fe2O3 synthesis is formed in monoclinic and hexagonal structures, while for LiFePO4 FeC2O4 photochemical reduction, LiFePO4 FeC2O4 commercial and LiFePO4 Fe2O3 photochemical reduction, commercial LiFePO4 Fe2O3 is categorized in orthombic crystals. The EIS test shows that the transfer of resistance is 321 Ω, 1890 Ω and 185 Ω, 2360 Ω respectively. Charge discharge tests at 0.1 C specific capacity respectively produced 3 V, 3 V and 2.8 V, 2.95 V. However, the sample has low charge transfer reversibility and other phases are formed from the peak of reduction and oxidation, such as in the cyclic voltammetry test. The results show that FeC2O4.2H2O and Fe2O3 synthesized from steel industry waste (mill-scale) can be used for LiFePO4 battery precursors, but the resulting capacity is low because it is less optimal in making LiFePO4 precursors.

Item Type:	Thesis (S1)
Contributors:	Contribution Contributors NIP/NIM Thesis advisor RAMA DENNY MUCHTAR, YUS 198206222009121002 Thesis advisor FIRMAN SEPTIYANTO, RAHMAT 198709042015041001
Additional Information:	Pemanfaatan limbah industri baja (mill-scale) sebagai material aktif katoda baterai LiFePO4 telah berhasil dilakukan dengan metode solid state reaction menggunakan FeC2O4.2H2O dan Fe2O3 dari limbah industri baja (mill-scale) disintesis dengan metode reduksi fotokimia. Sebagai perbandingan, LiFePO4 juga disintesis dengan metode yang sama untuk prekursor FeC2O4.2H2O dan Fe2O3 komersil. Karakterisasi SEM-EDX dan XRD sampel prekursor FeC2O4 dan Fe2O3 reduksi fotokimia dan komersil serta LiFePO4 FeC2O4 dan Fe2O3 reduksi fotokimia dan komersil telah dilakukan. Dimana struktur kristal sintesis FeC2O4.2H2O dan Fe2O3 yang terbentuk struktur monoclinic dan hexagonal, sedangkan untuk LiFePO4 FeC2O4 reduksi fotokimia, LiFePO4 FeC2O4 komersil dan LiFePO4 Fe2O3 reduksi Fotokimia, LiFePO4 Fe2O3 komersil dikatergorikan pada kristal ortorhombic. Pengujian EIS menunjukkan bahwa transfer resistansi secara berturut-turut yaitu sebesar 321 Ω, 1890 Ω dan 185 Ω, 2360 Ω. Pengujian charge discharge pada 0,1 C spesifik kapasitas secara berturut-turut dihasilkan 3V, 3 V dan dihasilkan 2.8 V, 2.95 V. Namun pada sampel memiliki reversibilitas transfer muatan yang rendah dan fase lain yang terbentuk dilihat dari puncak reduksi dan oksidasinya, seperti pada uji cyclic voltammetry. Hasil penelitian menunjukkan bahwa FeC2O4 dan Fe2O3 hasil sintesis dari limbah industri baja (mill-scale) dapat digunakan untuk prekursor baterai LiFePO4, tetapi kapasitas yang dihasilkan rendah karena kurang optimal dalam pembuatan prekursor LiFePO4.
Uncontrolled Keywords:	FeC2O4.2H2O. Fe2O3. LiFePO4. Cathode. Mill-Scale FeC2O4.2H2O. Fe2O3. LiFePO4. Katoda. Mill-Scale
Subjects:	Q Science > QC Physics
Divisions:	02-Fakultas Keguruan dan Ilmu Pendidikan 02-Fakultas Keguruan dan Ilmu Pendidikan > 84203-Jurusan Pendidikan Fisika
Depositing User:	Septi Rosa Rosmita
Date Deposited:	14 Aug 2024 11:47
Last Modified:	14 Aug 2024 11:47
URI:	http://eprints.untirta.ac.id/id/eprint/39245

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