Putra, Gilang Baswara Anggara (2017) Sintesis Elektroda Superkapasitor dengan Proses Eksfoliasi Kimia dan Pengaitan Fe3+ 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 yang dicampurkan dengan HCl dalam proses penyayatan kimia serta glukosa dan Fe3+ yang dikaitkan untuk meningkatkan nilai kapasitansi elektroda super kapasitor jenis EDLC. Pada penelitian ini akan menyelidiki pengaruh pengenceran HCl dalam proses penyayatan secara kimia serta menyelidiki pengaruh penambahan massa Fe terhadap nilai kapasitansi elektroda dan rapat energi super kapasitor EDLC. Karakterisasi elektroda digunakan XRD, XRF, CHONS, PSA, CV, FTIR, serta SEM-EDX. Hasil XRD dan XRF memperlihatkan bahan dasar tempurung kelapa merupakan rGO dengan sudut difraksi 2 ================== This study uses the basic material rGO from old coconut shell that mixed with HCl in the chemical exfoliation as well as glucose and Fe3+ inserted to increase the electrode specific capacitance EDLC type supercapacitor. This research will
investigate the dilution effect of HCl in the process of chemical exfoliation as well as to investigate the effect of additional Fe against EDLC electrode specific capacitance and energy density.
Characterization of electrodes was conducted using
XRD, XRF, CHONS, PSA, CV, FTIR, and SEM-EDX.
The results of XRD and XRF show the basic ingredients of coconut shell which is RGO with diffraction angles of 2 휃
= 24 표 and 44 표 and the most major elements are carbon (C) as much as 81%. The layer thickness of RGO measured by PSA has been reduced to be 57 nm. The CV measurement result in the largest capacitance of 99 F/g and energy density up to 1,345 W/g for the sample rGO: HCl: Glu: Fe =
2: 2: 2: 1. This is supported by the results of FTIR testing that produces RGO functional groups such as C=C, O
-H,C-O, and Fe-O. Meanwhile,the SEM-EDX shows the distribution of elements which has been spread uniformly where Fei s in the form of FeOH2+ or generally Fe3+ ion. It means that Fe3+ ion has inserted into the rGO atomic bondings.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | grafena oksida tereduksi (rGO), kapasitansi spesifik, super kapasitor EDLC, super capacitor, reduce graphene oxide (rGO), capacitance |
| Subjects: | Q Science T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials. T Technology > TP Chemical technology > TP248 Nanogels. Nanoparticles. T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial. |
| Divisions: | Faculty of Mathematics and Science > Physics |
| Depositing User: | Putra Gilang Baswara Anggara |
| Date Deposited: | 03 Oct 2017 02:42 |
| Last Modified: | 05 Mar 2019 06:39 |
| URI: | http://repository.its.ac.id/id/eprint/42969 |
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