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All Journal DWIJA CENDEKIA: Jurnal Riset Pedagogik Jurnal Ilmiah Pendidikan Fisika Techne : Jurnal Ilmiah Elektroteknika Jurnal Fisika : Fisika Sains dan Aplikasinya Fullerene Journal of Chemistry SOSCIED DIFFRACTION: Journal for Physics Education and Applied Physics Journal Dynamic SainT Sciening : Science Learning Journal Jurnal Luminous: Riset Ilmiah Pendidikan Fisika Phydagogic : Jurnal Fisika dan Pembelajarannya Jurnal Literasi Pendidikan Fisika (JLPF) Charm Sains : Jurnal Pendidikan Fisika Lontar Physics Today Jurnal FisTa : Fisika dan Terapannya AgroSainT: Jurnal Ilmiah Jurnal Pendidikan Kimia, Fisika dan Biologi
Ishak Pawarangan
Universitas Negeri Manado
Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Journal : SOSCIED

 1 
PENGARUH KONSENTRASI MOLARITAS KOH TERHADAP SIFAT KELISTRIKAN BIO BATERAI AMPAS KOPI Pawarangan, Ishak; Tumewu, Widya Anjelia; Mawuntu, Vicky Julius; Kumendong, Igreya Mitchel; Pungus, Sayenne Givenshe
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.v7i2.891

Abstract

Spent coffee grounds are an abundant organic waste material. Spent coffee grounds have significant potential as an environmentally friendly alternative energy source in bio-battery technology. This study aims to analyze the effect of KOH molarity concentration on the electrical properties of coffee ground-based bio-batteries. Variations in KOH molarity solutions of 1M, 3M, and 5M, each mixed with 50 grams of spent coffee grounds, were utilized to evaluate their effect on the electrical properties, including current, voltage, and power output. The results indicate that increasing the molarity concentration significantly enhances the bio-battery's performance, as evidenced by increased voltage and maximum power output. The highest electrical power output, 97.2 mW, was achieved at a 5M KOH concentration. The study concludes that selecting the appropriate molarity concentration is a key factor in optimizing the performance of coffee ground-based bio-batteries. This research contributes to the advancement of renewable energy development from organic waste.
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.
PENGARUH KONSENTRASI MOLARITAS KOH TERHADAP SIFAT KELISTRIKAN BIO BATERAI AMPAS KOPI Pawarangan, Ishak; Tumewu, Widya Anjelia; Mawuntu, Vicky Julius; Kumendong, Igreya Mitchel; Pungus, Sayenne Givenshe
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.v7i2.891

Abstract

Spent coffee grounds are an abundant organic waste material. Spent coffee grounds have significant potential as an environmentally friendly alternative energy source in bio-battery technology. This study aims to analyze the effect of KOH molarity concentration on the electrical properties of coffee ground-based bio-batteries. Variations in KOH molarity solutions of 1M, 3M, and 5M, each mixed with 50 grams of spent coffee grounds, were utilized to evaluate their effect on the electrical properties, including current, voltage, and power output. The results indicate that increasing the molarity concentration significantly enhances the bio-battery's performance, as evidenced by increased voltage and maximum power output. The highest electrical power output, 97.2 mW, was achieved at a 5M KOH concentration. The study concludes that selecting the appropriate molarity concentration is a key factor in optimizing the performance of coffee ground-based bio-batteries. This research contributes to the advancement of renewable energy development from organic waste.
Co-Authors Alexander Pakiding Alfrie Musa Rampengan Amisan, Trianita Imannuela Awal Mulia Rejeki Tumanggor Bergita Gela Saka Berton Maruli Siahaan Conny Conny Defri Nadus Derek, Glladyvio Dwi Prasetyawati Thana Eko Suripto Pasinggi Fajar Pratama Pongsapan Farly Reynol Tumimomor Fitrianingrum, Aufa Maulida Heindrich Taunaumang Jeane V. Tumangkeng Jeilen Gabriela Nikita Nusa Karundeng, Revaldy Imanuel Orlando Kimbal, Ariel Javi Kumendong, Igreya Mitchel Kumendong, Igreya Mitchell Kurniawan, Reskyel Lalu Mohammad Junaidi Idris Liliani Joni Limbong, Merni Loding, Intan Eka Audrey Lolowang, Efraim Jonathan Lucas, Bill Ryan Lumempow, Greity Syaloom Makarawung, Putri S Marcellino Christofel Mambu Marianus Marianus Marianus Martina Pineng Martina Pineng Mawuntu, Vicky Julius Mottoh, Ferlitha Frisilia Mundiahi, Oksan Prasetio Nyanyi, Brenda Paembonan, Tiara Lestari Parno Sumanro Mahulae Potabuga, Putri Wulandari Pungus, Sayenne Givenshe Rali Sarira Bone Saka, Bergita Gela silka Silka Silka Stefanus Duma Tampenawas, Alfano Riky Tumimomor, Farly R. Varisky Abraham Dumanaw Vicky Mawuntu Widya Anjelia Tumewu Wilson Jefriyanto Yasman Sanda Yosep Mari' Yusri Ambabunga Yusri Anugerah Manapa Ambabunga