CD Tesis

Pengaruh Penambahan Zat Katalis NiCl2 Pada Material Karbon Turunan Mesocarp Kelapa Sawit Untuk Aplikasi Superkapasitor

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Carbon materials derived from biomass have important role in the development of sustainable technology, becauseadvantages include easy to obtain, environmentally friendly, low cost, and high specific surface area. low cost, and high specific surface area. Carbon materials that are added with NiCl2 catalyst and temperature variations of 600 oC, 700 oC and 800 oC using N2 gas can improve the performance of the supercapaitor cells that can be analyzed using physical properties and electrochemical properties of supercapacitor cells. electrochemical properties of supercapacitor cells.
This research focuses on the addition of NiCl2 catalyst to biomass-based carbon electrodes from oil palm messocarp. The addition of catalysts and temperature variations can improve the performance of supercapacitor cells. In this study, chemical activation used KOH activator with molarity of 0.1; 0.3 and 0.5 with carbonization process using 600 oC temperature supplied by N2 gas. Physical activation process at a temperature of 900 oC with CO2 gas. The next process is adding NiCl2 catalyst with a molarity of 0.1 and KOH with a molarity of 0.3. Carbonization process using temperatures of 600 oC, 700 oC and 800 oC using N2 gas. The physical activation process uses a temperature of 900 oC using CO2 gas.
The results showed that samples with variations of KOH activation (MKS-01, MKS-03 and MKS-05) had specific surface areas with values of 422.961 m2 g-1, 694.405 m2g-1 and 480.927 m2g-1. Electrochemical testing of supercapacitor cells MKS-01, MKS-03 and MKS-05 have specific capacitance values of 160.90 F g-1, 185.65 F g-1 and 179.45 F g-1, respectively. MKS-03 has the highest capacitance value because the impregnation that occurs in KOH with a molarity of 0.3 M causes other elements besides carbon to evaporate, resulting in many pores on the surface of the MKS-03 carbon electrode. MKS with KOH activator with 0.3 M molarity was then added with NiCl2 catalyst with 0.1 M molarity and N2 temperature variation at 600 oC, 700 oC, 800 oC (MKS-600, MKS-700 and MKS-800) with specific surface area of 1072.319 m2g-1, 255.496 m2g-1 and 835.871 m2g-1. MKS-600 has the highest surface area with a value of 1072.319 m2g-1. The specific surface area is related to the amount of surface area available for adsorption and desorption of electrolyte ions. The results of SEM analysis also support that the carbon structure has many pores making it suitable for use as a supercapacitor electrode material. Testing the electrochemical properties of MKS-600, MKS-700 and MKS-800 supercapacitor cells are 300.20 F g-1; 266.15 F g-1 and 222.80 F g-1. The highest specific capacitance value with the MKS-600 code, this is because at a carbonization temperature of 600 oC the gasification reaction of volatile compounds occurs quickly, resulting in the release of carbon chains and the formation of many pores.
This study shows that the addition of NiCl₂ catalyst and variation of carbonization temperature can improve the performance of carbon-based supercapacitor cells from oil palm mesocarp. Chemical activation using KOH with molarities of 0.1; 0.3; and 0.5 produced different specific surface areas, with sample MKS-03 (KOH 0.3 M) showing the highest specific capacitance, namely 185.65 F g-1. The addition of NiCl₂ with a molarity of 0.1 M to the sample that had been activated with 0.3 M KOH and carbonized at 600 °C produced the highest specific surface area (1072.319 m²g-1) and the highest specific capacitance of 300.20 F g-1. This is due to the rapid gasification reaction at 600 °C, which results in the formation of more pores, improving the electrode performance for supercapacitor cell applications. The obtained carbon structure shows many pores, which makes it suitable as an electrode material for supercapacitors.
Keywords: Oil palm fruit mesocarp, N2 temperature variation, NiCl2 catalyst, Supercapacitor.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2210247026

Penerbit

Pekanbaru : Universitas Riau Pascasarjana Tesis Pendidikan Fisika., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2210247026

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

Jaka

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