Karakterisasi Struktur Komposit Katoda Na2MnPO4F/C Akibat Pengaruh Perubahan Temperatur Hidrotermal

Oktafia, Nur Anisa (2025) Karakterisasi Struktur Komposit Katoda Na2MnPO4F/C Akibat Pengaruh Perubahan Temperatur Hidrotermal. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Na2MnPO4F/C merupakan material katoda potensial untuk baterai ion natrium karena kestabilan struktural dan kapasitas penyimpanan energinya yang tinggi. Penelitian ini bertujuan menyintesis material Na2MnPO4F/C melalui metode pencampuran padat dan hidrotermal dengan variasi temperatur 150°C, 200°C, dan 250°C serta penambahan karbon dari glukosa. Karakterisasi dilakukan menggunakan DTA-TGA, XRD, FTIR, dan SEM-EDX untuk mempelajari sifat termal, struktur kristal, gugus fungsi, dan morfologi material. Berdasarkan hasil karakterisasi dapat disimpulkan bahwa temperatur hidrotermal mempengaruhi pembentukan fasa dan kristalinitas material. Dari hasil XRD didapati fasa Na2MnPO4F/C paling optimal berada pada variasi temperatur 200°C memberikan kandungan fasa Na₂MnPO₄F yang paling tinggi dengan kristalinitas relatif baik dengan ukuran kristal sebesar 26,03 nm. Hasil FTIR mengonfirmasi keberadaan gugus fungsi utama seperti PO43- dan Mn-O yang merupakan indikasi keberhasilan pembentukan Na2MnPO4F/C, juga terdapat gugus C-C dan O-H dari pelapisan karbon amorf hasil kerbonisasi glukosa. Hal tersebut didukung oleh analisis morfologi paertikel SEM-EDX dimana total deviasi perbandingan teoritis dengan eksperimen hanya sebesar 17,75%. Penelitian ini menyarankan optimalisasi rasio karbon, eksplorasi suhu hidrotermal lebih ekstrem, serta penggunaan variasi prekursor mangan untuk meningkatkan efisiensi sintesis Na2MnPO4F/C.
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Na₂MnPO₄F/C has emerged as a promising cathode material for sodium-ion batteries due to its structural stability and high energy storage capacity. In this study, Na₂MnPO₄F/C was synthesized via solid-state and hydrothermal methods with temperature variations of 150°C, 200°C, and 250°C, along with carbon addition from glucose. Characterization techniques including DTA-TGA, XRD, FTIR, and SEM-EDX were employed to analyze thermal behavior, crystal structure, functional groups, and morphology. The results demonstrate that hydrothermal temperature plays a critical role in phase formation and crystallinity. The sample synthesized at 200°C with glucose exhibited the highest Na₂MnPO₄F phase content and favorable crystallinity, with an average crystallite size of 26.03 nm. FTIR analysis confirmed the presence of PO₄³⁻ and Mn–O groups, indicating successful phase formation, along with C–C and O–H bands from amorphous carbon derived from glucose pyrolysis. SEM-EDX analysis further supported these findings, showing a low deviation (17.75%) between theoretical and experimental elemental ratios. This study highlights the need for further optimization of carbon content, broader exploration of hydrothermal conditions, and evaluation of alternative manganese precursors to enhance the synthesis efficiency of Na₂MnPO₄F/C.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Carbon, Glucose, Hydrothermal, Ion Natrium Battery, Na2MnPO4F/C,Baterai Ion Natrium, Glukosa, Hidrotermal, Karbon, Na2MnPO4F/C.
Subjects:	Q Science > QC Physics > QC173.4.C63 Composite materials
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Nur Anisa Oktafia
Date Deposited:	23 Jul 2025 06:03
Last Modified:	23 Jul 2025 06:03
URI:	http://repository.its.ac.id/id/eprint/120926

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