Ardiani, Irma Septi (2018) Sintesis Elektroda Superkapasitor dengan Pengaitan Fe3+, Glukosa, dan Doping Nitrogen Menggunakan Metode Bubbling pada Grafena Oksida Tereduksi dari Tempurung Kelapa Tua. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini menggunakan bahan dasar rGO dari tempurung kelapa tua. Serbuk rGO disintesis dengan 1 M HCl dan larutan FeCl3 yang diaduk dengan pengaduk magnet pada suhu 70° C. Penambahan glukosa dan doping nitrogen dari gas nitrogen bertujuan untuk meningkatkan nilai kapasitansi spesifik dari elektroda superkapasitor selama proses eksfoliasi kimia dan mekanik. Penelitian ini bertujuan untuk mengetahui pengaruh glukosa dan gas nitrogen dengan metode bubbling terhadap nilai kapasitansi dan densitas energi superkapasitor. Karakterisasi elektroda menggunakan beberapa uji. Pengujian untuk bahan dasar meliputi XRD, SEM-EDX, XRF, dan CHONS Analyzer. Pengujian untuk elektroda rGO sintesis menggunakan PSA dan CV. Hasil XRD, XRF, dan CHONS menunjukkan bahwa bahan dasar arang tempurung kelapa merupakan rGO dengan sudut difraksi 2θ sebesar 22,91º dan 43,49º, dan unsur utama terbanyak ialah karbon (C) sebanyak 53,65%. Hasil uji SEM menunjukkan morfologi berupa lapisan-lapisan yang bertumpuk secara tidak teratur. Berdasarkan pengujian PSA menunjukkan bahwa proses sintesis meningkatkan ukuran partikel rGO. Pengujian CV menunjukkan sampel dengan bahan rGO:HCl:Fe:Glu = 2:2:1:2 memiliki nilai kapasitansi terbesar sebagai sampel kontrol dengan nilai 23,67 F/g dan sampel dengan bahan rGO:HCl:Fe:Glu = 2:2: 1:2 dengan waktu alir gas nitrogen 0,5 menit memiliki nilai kapasitansi terbesar untuk variasi sampel dengan nilai 21,67 F/g. Penambahan waktu alir gas nitrogen melalui metode bubbling dapat menurunkan nilai kapasitansi spesifik superkapasitor.
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This research uses basic material of rGO charcoal powder from old coconut shell. The rGO powder was synthesized with 1 M HCl and FeCl3 solution stirred with a magnetic stirrer at 70°C. The addition of glucose and doping nitrogen from nitrogen gas aim to increase the value of specific capacitance of the supercapacitor electrode during chemical and mechanical exfoliation processes. This study aims to determine the effect of addition of glucose and nitrogen gas by bubbling method on the capacitance values and energy density of EDLC supercapacitor. Electrode characterization uses several measurements. Testing for the basic material includes XRD, SEM-EDX, XRF, and CHONS Analyzer. Testing for the synthetic rGO electrode uses PSA and CV. The results of XRD, XRF, and CHONS Analyzer show that the basic material is rGO with diffraction angles 2θ = 22.91º and 43.49º, and the most dominant element is carbon (C), that is 53.65%. The result of SEM shows the morphology of layers are stacked irregularly. The result of PSA shows that the synthesis process increases the size of rGO particle. The result of CV shows the sample with ingredients rGO:HCl:Fe:Glu = 2:2:1:2 has the largest capacitance value as the control sample with a value of 23.67 F/g and the sample with ingredients of rGO:HCl:Fe:Glu = 2:2:1:2 with a half minute gas flow nitrogen has the largest capacitance value for the sample variation with a value of 21.67 F/g. The addition of nitrogen gas flow time through bubbling method may decrease the value of the specific capacitance of the supercapacitor.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 541.372 4 Ard s-1 3100018076938 |
| Uncontrolled Keywords: | Grafena Oksida Tereduksi (rGO), Kapasitansi, Nitrogen, Superkapasitor |
| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) > TA455 Carbon. Nanotubes. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power |
| Divisions: | Faculty of Natural Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Irma Septi Ardiani |
| Date Deposited: | 18 Nov 2020 05:21 |
| Last Modified: | 07 Dec 2020 04:06 |
| URI: | http://repository.its.ac.id/id/eprint/55433 |
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