CD Tesis

Preparasi Superkapasitor Berbasis Karbon Fungsional Dari Limbah Upih Pinang

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Supercapacitors are energy storage devices that combine the advantages of high power density, fast response time, and long cycle life. This devices is of great interest for sustainable energy applications, ranging from electric vehicles to power balancing in renewable energy. Electrode materials are a key element in supercapacitor performance, with porous carbon being the primary choice due to its properties that support ion storage capacity. This study explores the potential of areca nut frond waste, a biomass with high carbon content, to produce efficient and sustainable functional carbon electrodes.
The material synthesis process consists of several crucial stages that involve both chemical and physical activation. Chemical activation utilizes various activators, specifically KOH and ZnCl₂ at a concentration of 1 M, to achieve an optimal pore structure. Areca nut frond waste was converted into activated carbon through a carbonization process followed by physical activation in environments with N2 and CO2 gases. During physical activation, different temperatures are employed, specifically 800 °C, 850 °C, and 900 °C. Optimizing this synthesis is essential to obtain electrode materials with superior physical and electrochemical properties, which can then be used in the assembly of supercapacitor cells.
The crystallinity properties indicate that all samples exhibit a good amorphous character. The synthesis method used produces a surface morphology with a hierarchical structure, which includes a combination of micro, meso, and macropores. Porosity analysis confirms that the highest specific surface area achieved is 705.457 m²/g. The best electrochemical properties is observed in samples synthesized using a KOH activator at a physical activation temperature of 850°C. The results show a specific capacitance of 259.63 F/g, specific energy of 31.59 Wh/kg, and specific power of 195.08 W/kg. This study highlights the potential of using areca nut frond waste as a raw material for high-performance supercapacitor carbon electrodes. In addition to promoting the principles of green energy and sustainability, it provides new insights into how different types of activators and physical activation temperatures affect the electrode performance. Further research is needed to optimize the material structure to meet the demands of large-scale energy storage applications better.

Keywords: areca nut waste, biomass, activated carbon, electrode, supercapacitor

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2210247849

Penerbit

Pekanbaru : Universitas Riau Pascasarjana Tesis Pendidikan Fisika., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2210247849

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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