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Journal : SOSCIED

KARAKTERISTIK I-V ELEKTRODA SUPERKAPASITOR BERBASIS KARBON AKTIF KULIT KACANG BATIK KAWANGKOAN Tamara, Gersom Jeremia; Polii, Jefferson; Tumimomor, Farly R.; Rampengan, Alfrie M; Mongan, Satyano W.
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.834

Abstract

The energy crisis is one of the major problems facing the world today, especially electrical energy. Supercapacitors are an alternative solution as an electrical energy storage divais. In this study, batik kawangkoan peanut shell samples have been successfully modified into activated carbon as a supercapacitor electrode. The carbonization process is given a carbonization temperature treatment of 350oC, 400oC, 450oC, 500oC, 550oC which is activated using a 7 M KOH solution by heating in a furnace at 750oC to produce a voltage of 0.966 V, 1.273 V, respectively, 1.295 V, 1.325 V, 1.654 V and currents of 18.56 mA, 23.43 mA, 26.47 mA, 30.53 mA, 48.24 mA which shows that there is a change in the value of current and voltage in supercapacitors, and the best sample is in the sample with 550oC carbonization temperature treatment. Thus, it can be concluded that carbonization temperature has an influence on the current and voltage characteristics of supercapacitor electrodes.
PEMANFAATAN KARBON AKTIF ECENG GONDOK (EICHHORNIA CRASSIPES) SEBAGAI MATERIAL ELEKTRODA SUPERKAPASITOR DENGAN VARIASI KOSENTRASI ELEKTROLIT Na2SO4 Watulingas, Aldo Nandito; Rampengan, Alfrie M.; Tumimomor, Farly Reynol; Wenas, Donny R.; Nusa, Jeilen G. N
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.840

Abstract

The utilization of renewable energy has become a major focus in an effort to reduce dependence on fossil energy sources and reduce negative impacts on the environment, making it important to increase the use of clean and renewable energy. One of the biggest challenges in the application of renewable energy is efficient and sustainable energy storage. In this case, supercapacitors have proven to be a solution as an efficient and sustainable energy storage device. In this study, water hyacinth biomass material was tested as a supercapacitor electrode which was influenced by variations in Na2SO4 electrolyte, namely 1M, 2M, and 3 M, which produced voltages of 1.037 V, 1.404 V, and 1.647 V respectively and electric currents of 18.56 mA, 23.32 mA, and 32.34 mA. From the results of this study, it was found that the sample with an electrolyte concentration of Na2SO4 3 M had higher voltage and amperage values, which amounted to 1.654 V and 32.34 mA due to the greater number of Na+ and SO42- ions in the electrolyte. So it can be concluded that the variation of Na2SO4 electrolyte concentration of 1 M, 2 M, and 3 M results in an increase in the value of voltage and electric current produced by supercapacitors.
MODEL PEMBELAJARAN INKUIRI TERBIMBING MENGGUNAKAN PENDEKATAN KONTEKSTUAL DALAM PEMBELAJARAN ENERGI MEKANIK UNTUK MENINGKATKAN HASIL BELAJAR SISWA DI SMA ADVENT TANAH PUTIH Heru, Christine; Londa, Treesje K; Rampengan, Alfrie M.
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.850

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar siswa dengan Model pembelajaran inkuiri terbimbing menggunakan pendekatan kontekstual dalam pembelajaran Energi mekanik. Penelitian ini menggunakan desain penelitian Pre-experimental Design dengan rancangan One-Group Pretest-Postest. Teknik sampling menggunakan non probability sampling. Sampel dalam penelitian ini adalah kelas X dengan jumlah 22 siswa sebagai kelas eksperimen. Data diperoleh dengan observasi, dokumentasi, dan tes. Analisis data yang digunakan diperoleh dari nilai pretest dan postest pada tes hasil belajar siswa. Selanjutnya dianalisis dengan uji normalitas dan hipotesis (uji-t). Perolehan nilai rata-rata untuk pretest 38,96 dan posttest 75,00. Dapat disimpulkan bahwa dengan menerapkan model pembelajaran inkuiri terbimbing menggunakan pendekatan kontekstual dapat meningkatkan hasil belajar siswa. Model Pembelajaran Inkuiri Terbimbing Menggunakan Pendekatan Kontekstual dapat diterapkan dalam pembelajaran fisika sebagai alternatif dikarenakan dapat meningkatkan hasil belajar siswa mnjadi lebih baik
PENERAPAN METODE DEMONSTRASI BERBANTUAN MEDIA PRESENTASI DALAM MENINGKATKAN HASIL BELAJAR SISWA PADA TOPIK FLUIDA STATIS DI SMA NEGERI 1 TOMBATU Dewi, Adiadna Chitra; Silangen, Patricia M; Rampengan, Alfrie M.
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.856

Abstract

Tujuan penelitian ini adalah untuk mengetahui peningkatan hasil belajar siswa pada topik fluida statis dengan penerapan metode demonstrasi berbantuan media presentasi di SMA Negeri 1 Tombatu. Jenis penelitian ini adalah penelitian tindakan kelas (PTK) dengan Subjek siswa kelas XI IPA 1 SMA Negeri 1 Tombatu. Teknik pengambilan data adalah tes pada setiap siklus. Hasil yang diperoleh adalah terjadi peningkatan ketuntasan siswa siklus I sebesar 73,1% meningkat pada siklus II menjadi 96,15% dengan persentase penilaian kognitif, afektif dan psikomotorik pada masing-masing siklus yaitu siklus I 76,1%,77,1%,72,1% sedangkan pada siklus II meningkat menjadi 94,6%,87,2%,83,2%. Jadi dapat disimpulkan bahwa bahwa penerapan metode demonstrasi berbantuan media presentasi dapat meningkatkan hasil belajar siswa pada topik Fluida Statis di SMA Negeri 1 Tombatu.
KARAKTERISTIK KARBON AKTIF BERBASIS LIMBAH PELEPAH KELAPA DENGAN VARIASI KONSENTRASI KOH SEBAGAI MATERIAL ELEKTRODA SUPERKAPASITOR Kimbal, Ariel Javi; Taunaumang, Heindrich; Tumimomor, Farly R.; Rampengan, Alfrie M.; Pawarangan, Ishak
SOSCIED Vol 8 No 1 (2025): SOSCIED - Juli 2025
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v8i1.913

Abstract

The current energy needs are increasing due to technological advances and the increasing number of technology users. So, to solve this problem, it is necessary to make major changes and energy renewal by using alternative energy. One of the utilization of alternative energy is energy storage devices such as supercapacitors. In this study, a test was carried out on the activation of coconut stem waste as a supercapacitor electrode with variations in KOH electrolyte, namely 6M, 7M, 8M which produced voltages of 1.254 V, 1.187 V, 1.105 V and produced currents of 87.2 mA, 46.52 mA, 25.38 mA respectively. Based on the results of the study, it showed a decrease in the concentration of electrolytes 6M, 7M, 8M. So it can be concluded that different electrolytes have a significant effect on the voltage and electric current values ​​produced by the supercapacitor electrodes.