CD Skripsi

Elektroda Karbon Dari Biomassa Ampas Biji Kopi Dengan Variasi Konsentrasi Zncl2 Untuk Aplikasi Sel Superkapasitor

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Lignocellulosic-based biomass is widely used as the basic material for making supercapacitor cell carbon electrodes, because it can be produced repeatedly which is economical and environmentally friendly. In this research, carbon electrodes were made from a coffee bean waste biomass (ABK) by optimizing the chemical activation process. The process of making this supercapacitor cell electrode is through a pre-carbonization process, chemical activation with ZnCl2 impregnation with variations in concentrations of 0.1 M, 0.2 M and 0.3 M, carbonization using N2 gas at a temperature of 600˚ C and physical activation using CO2 gas with temperature 800˚C. The highest density shrinkage value is owned by the ABK-03 sample, which is 19.62%. X-Ray Diffraction analysis showed that there were two peaks that widened at an angle of 2θ around 24˚ and 2θ angle around 44˚ which identified an amorphous structure. The smallest Lc (layer height) and the largest La (layer width) values were owned by ABK-0.3 samples, respectively, namely 9,669 nm and 39,129 nm. The results of the Fourier Transform Infrared Spectroscopy test showed that the activated carbon of coffee bean waste contained the functional groups O-H, C-H, C=O, C≡C, C=C and C-O. Electrochemical analysis of supercapacitor cells using Cyclic Voltammetry and Galvanostatic Charge Discharge showed that the ABK-03 sample had the highest specific capacitance value of 242.40 Fg-1 and 250 Fg-1. Based on this research, it can be concluded that the coffee bean waste that are not utilized and wasted in vain. It has potentially used as a carbon electrode for supercapacitor cells applications.
Keywords: coffee bean waste, carbon electrode, chemical activated, ZnCl2, supercapacitors

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1803111850

Penerbit

Pekanbaru : Universitas Riau – FMIPA – FISIKA., 2022

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1803111850

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

nadya

Versi lain/terkait

Lampiran Berkas

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