Puspithasari, Yuniar (2025) Analisis Pengaruh Temperatur Sintesis ZIF-67 Pada Komposit PEO/ZIF-67/Mikroselulosa Berbasis Tandan Kosong Kelapa Sawit (TKKS) Sebagai Elektrolit Padat Dalam Aplikasi Baterai Li-Ion. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Elektrolit yang paling banyak digunakan pada baterai litium yaitu elektrolit cair namun mudah terbakar, sehingga dilakukan pengembangan berupa elektrolit padat, terutama banyak dikembangkan elektrolit padat berbasis polimer seperti PEO. Namun PEO memiliki nilai konduktivitas ionik yang rendah sekitar 10-6 – 10-7 S cm-1 sehingga untuk meningkatkan nilai konduktivitas ioniknya, maka dilakukan pencampuran PEO dengan mikroselulosa serta penambahan ZIF-67. Penelitian ini bertujuan untuk menganalisa pengaruh temperatur sintesis ZIF-67 terhadap struktur kristal dan morfologi material ZIF-67 serta kinerja elektrokimia pada komposit elektrolit padat PEO/ZIF-67/Mikroselulosa berbasis Tandan Kosong Kelapa Sawit (TKKS). Temperatur sintesis ZIF-67 berpengaruh terhadap struktur kristal dan morfologi material ZIF-67. Pada hasil uji XRD didapatkan ZIF-67 pada semua variasi memiliki struktur kristal sodalit dengan adanya perubahan intensitas puncak difraksi. Pada hasil uji FTIR, semua sampel ZIF-67 menunjukkan terbentuknya gugus fungsi yang sama namun terjadi perubahan lebar dan panjang puncak serapan pada gugus fungsi C-N dan C=N dimana semakin meningkat temperatur (60oC – 70oC) serta pada temperatur rendah (50oC) puncak serapan semakin lebar dan pendek. Sedangkan pada uji morfologi SEM didapatkan bentuk partikel rhombic dodecahedron dan semakin meningkatnya temperatur pada 60oC, 65oC, dan 70oC maka semakin besar ukuran partikel yang terbentuk yaitu 221, 86 nm, 229,55 nm, dan 319,78 nm serta pada temperatur 55oC ukuran partikel lebih besar daripada 60oC yaitu 257,65 nm. Didapatkan pula distribusi ukuran partikel yang merata pada temperatur 60oC. Temperatur sintesis ZIF-67 juga mempunyai pengaruh terhadap performa elektrokimia komposit PEO/Mikroselulosa/ZIF-67 sebagai elektrolit padat. Berdasarkan hasil uji EIS didapatkan nilai konduktivitas ionik terbesar pada sampel 60oC sebesar 6.01689 x 10-5 dan 2.07 x 10-4 pada komposisi 80:10:10 dan 80:15:5 dengan nilai kapasitansi pada hasil uji CV sebesar 0.00016944 F dan 0.00012459 F.
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The most widely used electrolyte in lithium batteries is liquid electrolyte but it is flammable, so that the development of solid electrolytes is carried out, especially many polymer-based solid electrolytes such as PEO are developed. However, PEO has a low ionic conductivity value of around 10-6 – 10-7 S cm-1 so that to increase its ionic conductivity value, PEO is mixed with microcellulose and the addition of ZIF-67. This study aims to analyze the effect of ZIF-67 synthesis temperature on the crystal structure and morphology of ZIF-67 material and the electrochemical performance of PEO/ZIF-67/Microcellulose solid electrolyte composites based on Empty Palm Oil Fruit Bunches (OPFB). The synthesis temperature of ZIF-67 affects the crystal structure and morphology of ZIF-67 material. The XRD test results show that ZIF-67 in all variations has a sodalite crystal structure with changes in the intensity of the diffraction peaks. In the FTIR test results, all ZIF-67 samples showed the formation of the same functional groups but there was a change in the width and length of the absorption peaks in the C-N and C=N functional groups where the temperature increased (60oC – 70oC) and at low temperatures (50oC) the absorption peaks became wider and shorter. Meanwhile, in the SEM morphology test, the shape of rhombic dodecahedron particles was obtained and the increasing temperature at 60oC, 65oC, and 70oC resulted in larger particle sizes, namely 221.86 nm, 229.55 nm, and 319.78 nm, and at a temperature of 55oC the particle size was larger than 60oC, namely 257.65 nm. An even distribution of particle sizes was also obtained at a temperature of 60oC. The synthesis temperature of ZIF-67 also has an influence on the electrochemical performance of the PEO/Microcellulose/ZIF-67 composite as a solid electrolyte. Based on the EIS test results, the largest ionic conductivity value was obtained in the 60oC sample of 6.01689 x 10-5 and 2.07 x 10-4 in the compositions 80:10:10 and 80:15:5 with capacitance values in the CV test results of 0.00016944 F and 0.00012459 F.
Item Type: | Thesis (Other) |
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Uncontrolled Keywords: | Elektrolit Padat, Mikroselulosa, PEO, Tandan Kosong Kelapa Sawit, ZIF-67 Empty Palm Oil Fruit Bunchhes, Microcellulose, PEO, Solid Electrolyte, ZIF-67 |
Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2921 Lithium cells. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2941 Storage batteries |
Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
Depositing User: | Yuniar Puspithasari |
Date Deposited: | 29 Jul 2025 09:54 |
Last Modified: | 29 Jul 2025 09:54 |
URI: | http://repository.its.ac.id/id/eprint/122946 |
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