CD Skripsi

Pengaruh Waktu Aktivasi Zncl2 Terhadap Kinerja Elektroda Superkapasitor Berbasis Limbah Sabut Kelapa Muda

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Activated carbon can be defined as an amorphous carbon compound with high porosity and a surface area of about 500-2000m2/g. Activated carbon is generally produced through several stages, i.e., process of dehydration, pre-carbonization, chemical activation, carbonization, physical activation. The preparation of carbon electrodes from young coconut fiber (YCF) aims to determine the effect of chemical activation time on the performance of supercapacitor electrodes using ZnCl2 as activating agent at a concentration of 0,5 M. The chemical activation times of 1 hour, 2 hours, and 2,5 hours were used. The carbonization was using N2 gas at a temperature of 600℃. The next process was physical activation with CO2 gas at 800℃. The measured physical properties (density) of the carbon electrodes show the highest density shrinkage is owned by the YCF-2,5 sample by 39,44%. SEM analysis shows that increasing the chemical activation time to 2,5 hours can produce more nanofiber structures. EDX analysis showed that increasing the chemical activation time to 2,5 hours reduced the percentage of carbon from 94,98% to 94,82% due to high oxidative formation. XRD analysis shows that the sample is semicrystalline, with the Lc value inversely proportional to the specific surface area; a smaller Lc value indicates a large surface area found in the YCF- 2,5, which is 3,01. BET analysis produced a combined type-I and type-IV isotherm curve with an H4 hysteresis loop, which indicated that the pore structure of the YCF-2,5 sample was a combination of micropores and mesoporous pores. Analysis of electrochemical properties using the cyclic voltammetry and galvanostatic charge-discharge methods resulted in the highest specific capacitance values in the YCF-2,5 sample, i.e., 352,78 F/g and 270 F/g, respectively. Based on the physical and electrochemical properties of supercapacitor cells based on young coconut fiber biomas (YCF), chemical activation of 2,5 hours were produce a high specific surface area so as to improve the performance of supercapacitor cell electrodes.

Keywords: Young coconut fiber, Chemical activation, Time activation, Activated carbon, Supercapacitor,

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1903110154

Penerbit

Pekanbaru : Universitas Riau FISIPOL Fisika., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1903110154

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

Mutia

Versi lain/terkait

Lampiran Berkas

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