CD Tesis

Optimalisasi Sintesis Karbon Aktif Berbasis Monolit Dan Serbuk Dari Limbah Kulit Manggis Untuk Pembuatan Prototype Superkapasitor

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SUMMARY
Development of supercapacitor energy storage devices through the convertion of biomass waste into superior activated carbon materials has been a topic of interest in the last decade. One of the key aspects in the development of supercapacitors is the optimization of acitavated carbon synthesis for supercapacitor prototyping. In this context, the synthesis process of activated carbon is an important factor that can affect the performance of supercapacitor prototypes. Modifications and innovations continue to be carried out extensively, especially in the synthesis of the activated carbon as the basic material for the fabrication of supercapacitor prototypes.
This research aims to obtain a method of developing electrode material design through synthesis of activated carbon in the form of monoliths and powders from mangosteen peel waste for the fabrication of prototype supercapacitors. Biomass of mangosteen peel as a precursor is prepared into activated carbon through integrated pyrolysis stages in N2 and CO2 gas environment. The synthesis process focused on different forms of activated carbon with chemical activation of ZnCl2 at concentrations of 0,3, 0,5 and 0,7 mol/L. Therefore, it is necessary to optimize the most effective synthesis between monoliths and powders as a base material for fabrication of prototype supercapacitors leading to superior physical and electrochemical properties.
The crystallinity properties confirm that all samples have good amorphous properties. In addition, the synthesis in the form of monoliths and powders at different ZnCl2 concentrations has shown surface morphology in the form of unique nanorod and nanofiber structures with a combination of micro-mesos and macropores. The porosity properties of the samples confirmed the highest micropore surface area of 649,891 m2/g. The best electrochemical properties were confirmed by the sample synthesized in monolith form at ZnCl2 concentration of 0,5 mol/L through galvanostatic charge discharge. The specific capacitance, energy density and power density values obtained were 260,020 F/g, 36,114 Wh/Kg and 130,271 W/Kg, respectively. In the fabrication of prototype supercapacitors, synthesized activated carbon form of monoliths and powders have the opportunity to be used as electrodes. Although, the capacitance value on the powder is lower by 15% compared to the monolith. However, activated carbon synthesized in powder form is more optimal for packaging in prototypes because the electrodes are more flexible and not easily broken, making it easier to make prototype supercapacitor. The specific capacitance of the prototype supercapacitor evaluated through cyclic voltammetry measurements was 111,100 F/g. These results confirm that mangosteen peel waste-based activated carbon can produce an efficient and environmentally friendly material to be used as an electrode base material for the manufacture of prototype supercapacitors.

Keywords: mangosteen peel waste, activated carbon, electrode material, prototype supercapacitor

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2110247661

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Fisika., 2023

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2110247661

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Jaka

Versi lain/terkait

Lampiran Berkas

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