Analisis Pengaruh Daya Microwave Pada Proses Sintesis Material Nitrogen Doped Rgo Terhadap Sifat Kapasitif Superkapasitor Komposit Nitrogen Doped Rgo/Cucr2o4

Kostradyanti, Dhea Febrina (2023) Analisis Pengaruh Daya Microwave Pada Proses Sintesis Material Nitrogen Doped Rgo Terhadap Sifat Kapasitif Superkapasitor Komposit Nitrogen Doped Rgo/Cucr2o4. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Energi sangat dibutuhkan dalam kehidupan sehari-hari. Produksi dan penggunaan energi di Indonesia masih bergantung pada bahan bakar fosil, oleh karena itu dibutuhkan sumber energi alternatif seperti energi matahari,angin, dan lainnya. Dalam penggunaannya tentunya dibutuhkan alat penyimpan energi. Salah satu alat penyimpan energi adalah superkapasitor. Superkapasitor hybrid merupakan jenis penyimpanan energi yang sistem kerjanya gabungan dari EDLC dan pseudocapacitor. Pada penelitian ini digunakan material komposit nitrogen doped reduced graphene oxide dan CuCr2O4 sebagai elektroda superkapasitor. Adapun tujuan dari penelitian ini untuk menganalisis pengaruh daya microwave oven terhadap struktur dan morfologi serta sifat kapasitif N-Doped rGO/CuCr2O4. Metode Hummer digunakan untuk membuat rGO dari serbuk grafit. Sedangkan untuk sintesis N-doped rGO menggunakan metode microwave assisted solvothermal dengan menggunakan ethylene glycol sebagai pelarut. Variasi daya microwave yang digunakan adalah 100, 180, dan 300 Watt dengan waktu 30 menit. Karakterisasi SEM-EDS, XRD, dan FTIR dilakukan untuk menganalisis struktur dan morfologi komposit. Sedangkan pengujian CV dan EIS dilakukan untuk mengukur nilai kapasitansi dan konduktivitas dari N-Doped rGO/CuCr2O4. Berdasarkan hasil pengujian XRD, FTIR, dan SEM-EDS penambahan daya microwave oven membuat nilai dspacing semakin besar yang mengindikasikan semakin banyak atom nitrogen yang tersubsitusi. Hal ini diperkuat dengan hasil EDS dimana sampel 300 W mempunyai persentase nitrogen terbesar. Nitrogen berperan penting dalam meningkatkan konduktivitas dari material. Sedangkan berdasarkan hasil pengujian CV, nilai kapasitansi terbesar dimiliki sampel dengan daya iradiasi microwave oven 300 W yaitu sebesar yaitu sebesar 217.41 F/g. Hal ini sejalan dengan hasil uji EIS dimana nilai kapasitansi sampel 300 W 197.5 F/g dengan nilai konduktivitas sebesar 1.35 S/m
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Energy is needed in everyday life. Energy production and use in Indonesia still depend on fossil fuels, therefore alternative energy sources are needed such as solar, wind, and other energy. In its use, of course, energy storage devices are needed. One of the energy storage devices is a supercapacitor. Hybrid supercapacitor is a type of energy storage whose working system is a combination of EDLC and pseudocapacitor. In this study, a composite material of nitrogen-doped reduced graphene oxide and CuCr2O4 was used as the supercapacitor electrode. The purpose of this study was to analyze the effect of microwave oven power on the structure and morphology as well as the capacitive properties of N-Doped rGO/CuCr2O4. The Hummer method was used to make rGO from graphite powder. As for the synthesis of N-doped rGO using the microwave-assisted solvothermal method using ethylene glycol as a solvent. The variations of microwave power used are 100, 180, and 300 Watts with a time of 30 minutes. SEM-EDS, XRD, and FTIR characterization were performed to analyze the structure and morphology of the composites. While the CV and EIS tests were carried out to measure the capacitance and conductivity values of N-Doped rGO/CuCr2O4. Based on the results of the XRD, FTIR, and SEM-EDS tests, the addition of microwave oven power makes the dspacing value greater, which indicates more nitrogen atoms are substituted. This is confirmed by the results of the EDS where the 300 W sample has the largest percentage of nitrogen. Nitrogen plays an important role in increasing the conductivity of the material. Meanwhile, based on the results of the CV test, the largest capacitance value is owned by the sample with a 300 W microwave oven irradiation power, which is equal to 217.41 F/g. This is in line with the results of the EIS test where the capacitance value of the sample is 300 W 197.5 F/g with a conductivity value of 1.35 S/m.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	CuCr2O4, Graphene, Microwave, rGO, Supercapacitor CuCr2O4, Graphene, Microwave, rGO, Superkapasitor
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA455.G65 Graphene T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Dhea Febrina Kostradyanti
Date Deposited:	08 Feb 2023 01:35
Last Modified:	08 Feb 2023 01:35
URI:	http://repository.its.ac.id/id/eprint/96394

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