CD Skripsi

Pemanfaatan Limbah Pasar Kulit Bawang Merah Sebagai Bahan Asal Karbon Aktif Monolit Untuk Aplikasi Elektroda Superkapasitor

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The fabrication of activated carbon monoliths derived from onion skin waste for
super capacitor electrode applications has been successfully done using different
variations of chemical activators. The chemical activators used were KOH,
ZnCl2 and NaOH, at a constant concentration of 0,5 M. The production of
activated carbon monoliths was prepared through the process of drying, precarbonization,
smoothing, chemical activation, pellet molding, carbonizationactivation
physics using N2 and CO2 gases. The carbonization-activation
temperatures used were 600°C and 900°C. Based on the characterization of
density measurements, the largest shrinkage in the BM-ZnCl2 sample is
27,5%. XRD characterization shows a sloping peak at an angle of 2θ at a range of
23,431° - 25,453° and 42,037° - 44,260°. SEM characterization results show
varying morphology in BM-KOH, BM-ZnCl2 and BM-NaOH samples. BM-KOH
samples showed the presence of nanospheres-nanofiber with the size between 102
- 124 nm and 135-370 nm. Nanospheres-nanofiber are also displayed in BMZnCl2
samples between 168 - 196 nm and 161 - 128 nm accompanied by
morphology resembling rods ranging from 362 - 882 nm. Nanofiber structures
accompanied by sheets were found in BM-NaOH samples at sizes 78 - 250 nm
and 26 - 56 nm, in addition, unique structures such as flowers were found. EDX
characterization showed all samples had a high carbon content of 69,18% -
91,80%. CV measurements produced the highest specific capacitance value in a
BM-KOH sample of 151 F/g. This shows that KOH is a good activator used in the
process of making activated carbon electrodes monoliths made from onion skin.
Keywords: onion skin, activated carbon monolith, activator variation,
supercapacitor, specific capacitance.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1703121825

Penerbit

Pekanbaru : Universitas Riau –FMIPA– FISIKA., 2022

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1703121825

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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