CD Skripsi

Pembuatan Elektroda Karbon Superkapasitor Dari Daun Kopi Dengan Variasi Konsentrasi Koh

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Supercapacitor is an electrical energy storage device that has a high power
density and charge storage capacitance. One of the important components in
supercapacitor cells is the electrode. Utilization of robusta coffee leaf waste
(Coffea Canephora) as a supercapacitor electrode has been successfully carried
out with variations in the concentration of KOH activator, namely 0.1M, 0.3M
and 0.5M. The fabrication of carbon electrodes was carried out through several
processes, namely drying the leaves under the sun and an oven at 110oC, precarbonization,
grinding, sieving, chemical activation, pellet molding,
carbonization and physical activation. The carbonization temperature used was
600oC with N2 gas absorption. Physical activation was carried out at a temperature
of 850oC using CO2 gas. Microstructural analysis showed an amorphous structure
at the carbon electrode which is in the 2 angle range around 21 - 25o. The test
results using fourier transform infrared spectroscopy identified the presence of
functional groups O-H, C-H and C-O in the sample. The electrochemical
properties of the supercapacitor carbon electrodes were studied using cyclic
voltammetry and galvanostatic charging and discharging. The optimum activator
concentration obtained is 0.3M KOH. The value of the specific capacitance of the
sample produced by the cyclic voltammetry test is 177.324 F/g and the
galvanostatic value is 210.361 F/g.
Keywords : coffee leaf, supercapacitor, activated carbon, specific capacitance.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

03 01.122 (0005)

Penerbit

Pekanbaru : Universitas Riau – FMIPA – FISIKA., 2022

Deskripsi Fisik

xviii, 50 hlm.: ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

03 01.122 (0005)

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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