Sintesis Tb(OH)3/rGO dan Y(OH)3/rGO Berbahan Dasar Logam Tanah Jarang untuk Aplikasi pada Superkapasitor = Synthesis of REE-Based Tb(OH)3/rGO and Y(OH)3/rGO for Supercapacitor Application
Putti Ghina Ainiya Zahra;
Eny Kusrini, supervisor; Slamet, examiner; Setiadi, examiner
(Fakultas Teknik Universitas Indonesia, 2023)
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This study aims to obtain Tb(OH)3/rGO and Y(OH)3/rGO for supercapacitor applications. Terbium hydroxide [Tb(OH)3] and yttrium hydroxide [Y(OH)3] were synthesized by the sonochemical method using polyvinylpyrrolidone. Hummer's method used ascorbic acid as a reducing agent to synthesize reduced graphene oxide (rGO). Variety of mass ratio of RE(OH)3 and rGO were conducted at 1:1, 1:2, and 2:1. The physical characterization was analyzed on a sample that exhibited the highest value of specific capacitance by SEM-EDX (Scanning Electron Microscope-Energy Dispersive X-Ray), FTIR (Fourier Transform Infrared Spectroscopy), and XRD (X-Ray Diffraction). Electrochemical measurements were examined with various electrolyte solutions, such as alkaline (1 M KOH) and neutral (1 M Na2SO4). Y(OH)3/rGO 1:2 in 1 M KOH exhibited the highest specific capacitance of 41.54 F/g at 5 mV/s. SEM-EDX confirmed that Y(OH)3/rGO 1:2 is composed of C (65.22 %), O (22.88 %), and Y (8.20%). Based on FTIR analysis, Y(OH)3/rGO 1:2 comprises hydroxyl groups from Y(OH)3 and shifted spectra in rGO. XRD results showed that Y(OH)3/rGO 1:2 has a Y(OH)3 hexagonal structure and a thin layer of rGO. Using the 1 M KOH gave better super capacitive performance than 1 M Na2SO4. |
 S-Putti Ghina Ainiya Zahra.pdf :: Unduh
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| No. Panggil : | S-pdf |
| Entri utama-Nama orang : | |
| Entri tambahan-Nama orang : | |
| Entri tambahan-Nama badan : | |
| Subjek : | |
| Penerbitan : | Depok: Fakultas Teknik Universitas Indonesia, 2023 |
| Program Studi : |
| Bahasa : | ind |
| Sumber Pengatalogan : | LibUI ind rda |
| Tipe Konten : | text |
| Tipe Media : | computer |
| Tipe Carrier : | online resource |
| Deskripsi Fisik : | xiii, 60 pages : illustration + appendix |
| Naskah Ringkas : | |
| Lembaga Pemilik : | Universitas Indonesia |
| Lokasi : | Perpustakaan UI |
| No. Panggil | No. Barkod | Ketersediaan |
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| S-pdf | 14-23-62133029 | TERSEDIA |
| Ulasan: |
| Tidak ada ulasan pada koleksi ini: 9999920525762 |
