CD Skripsi

Pengaruh Variasi Konsentrasi Aktivator Zncl2 Pada Elektroda Karbon Berbasis Kulit Buah Coklat Terhadap Sifat Fisis Dan Elektrokimia Sel Superkapasitor

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A synthesis of cocoa shell based carbon as electrodes for supercapacitor cell
application has been done succesfully. This study was conducted to analyze the effect of
ZnCl2 activator concentration to physical properties of carbon monolith such as thermal
stability, density, microcrystallin dimension, surface morphology, composition, and specific
surface area as well as the specific capacitance of the supercapacitor cell. Production of the
electrodes began with pre-carbonization process of sample at a temperature of 2500C for 2.5
hours, sample then crushed using ball-milling followed by chemical activation using ZnCl2
activator with 0.025 M, 0.05 M, 0.1 M, and 0.2 M concentration. Samples were formed to be
monolith using 8 tons of hydraulic press instrument. After that, the samples were activated at
8500C burning temperature for 2 hours, simultaneously streamed by CO2 gas. The process
was continued with the measurement of cell’s specific capacitance by cyclic voltammetry
method using Physics CV UR Rad-Er 5841 instrument with 0-1V potential sweep at a scan
rate of 1 mV/s. Lc was found increase with the addition of concentration, while the carbon
content decrease. The highest specific surface area was found as high as 619.717 m2/g in
sample with 0.05 M concentration, and the specific capacitance were measured in the
amount of 189 F/g, 210 F/g, 169 F/g and 93 F/g respectively for sample with 0.025 M, 0.05
M, 0.1 M, and 0.2 M activator concentration.
Keywords: cocoa shell waste, biomass, activated carbon, electrodes, supercapacitor.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

03 01.120 (0064)

Penerbit

Pekanbaru : Universitas Riau – FMIPA – FISIKA., 2020

Deskripsi Fisik

xviii, 65 hlm.: ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

03 01.120 (0064)

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

ELFITRA

Versi lain/terkait

Lampiran Berkas

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