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All Journal RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro ORBITA: Jurnal Pendidikan dan Ilmu Fisika Jurnal Abdi Ilmu JURNAL PEMBELAJARAN DAN MATEMATIKA SIGMA (JPMS) International Journal of Applied Sciences and Smart Technologies Budimas : Jurnal Pengabdian Masyarakat Jurnal VORTEKS Jurnal Abdi Mas Adzkia Jurnal Syntax Fusion : Jurnal Nasional Indonesia ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) International Journal of Basic and Applied Science BERKAT: Jurnal Pemberdayaan Masyarakat Jurnal Pengabdian Kepada Masyarakat Bhinneka Tunggal Ika: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Kepada Masyarakat dan Desa (PASSA)
HS, Samaria Chrisna
Jurusan Teknik Elektro, Politeknik Negeri Medan
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KARAKTERISTIK KAPASITAS PERBANDINGAN MASSA MATEIAL TiO2:rGO PADA SUPERKAPASITOR Marito Siagian, Sinta; Chrisna HS, Samaria; R Tampubolon, Ferdinan; Khiarani, Suci; Ginting, Agustina; Devita, Rischa
Jurnal Syntax Fusion Vol 3 No 10 (2023): Jurnal Syntax Fusion: Jurnal Nasional Indonesia
Publisher : CV RIFAINSTITUT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54543/fusion.v3i10.369

Abstract

The aim of this research is to analyze the capacitance value of a supercapacitor using TiO2 and coconut shells as organic rGO from natural waste. The method used to produce this material is to use wet chemistry by adding H2SO4 to coconut shell carbon to improve its electrolyte properties. After that, when applying a supercapacitor, phosphoric acid is used. The results obtained from this research are that the highest value is in a ratio of 1:1 at a value of 489 µF with a decrease in the last measurement at a value of 426 µF, while the lowest capacitance value is in a ratio of 1:3. Based on the measurement results obtained a capacitance value of 58 µF and a reduction value capacity up to 53 µF.
Pengembangan Algoritma Tabu Search Berbasis Bilangan Grey Untuk Optimalisasi Flexible Job Shop Dengan Ketidakpastian R Tampubolon, Ferdinan; Siagian, Sinta; Chrisna HS, Samaria; Devita, Rischa
Jurnal Syntax Fusion Vol 3 No 10 (2023): Jurnal Syntax Fusion: Jurnal Nasional Indonesia
Publisher : CV RIFAINSTITUT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54543/fusion.v3i10.370

Abstract

This research aims to make a step-by-step process to determine the most optimal completion time for the Flexible Job Shop Scheduling case. Flexible Job Shop Scheduling which not only aims to sequence operations on jobs but also chooses the machine to be used in processing an operation makes this scheduling more complicated than ordinary Job Shop Scheduling. This scheduling involves interval-shaped gray numbers to accommodate uncertainty in job ordering time. This further extends the complexity of scheduling. To solve this case a metaheuristic algorithm namely Tabu Search will be used. This algorithm uses mutation on the solution a number of iterations until it produces the best solution. The use of a tabu list in the Tabu Search algorithm to ensure the search is not trapped in the local minimum.
Comparison of the mass composition of Coconut Shell in TiO2 towards its characterization for supercapacitor applications Siagian, Sinta Marito; H. S, Samaria Chrisna; Tampubolon, Ferdinan Rinaldo; Juanta, Palma
International Journal of Applied Sciences and Smart Technologies Volume 06, Issue 1, June 2024
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v6i1.7417

Abstract

This study aims to evaluate the effect of the mass ratio on the capacitance of electrodes made from TiO-based composites. The composites were synthesized using a wet chemical method and applied using the doctor blade technique, incorporating TiO2 and rGO derived from coconut shell activated carbon. Our findings reveal that at a 1:1 mass ratio, the atomic composition of Ti and O was non-uniform, although there was evident adherence of TiO2 elements to the sample surface. In contrast, at mass ratios of 1:3 and 1:5, a decrease in the concentration of Ti atoms and an increase in O atoms were observed, indicating a reduction in Ti oxidation. SEM analysis further revealed that particle size significantly impacts capacitance: smaller particle sizes yielded higher capacitance. In the 1:1 mass variation, the discharge process was protracted, taking up to 29.3 minutes and generating an electrical energy of 0.000413 joules with a capacitance of 489 µF. These insights are pivotal for optimizing the composition and mass ratio, fostering the development of electrode materials characterized by enhanced capacitance and energy efficiency. Such advancements hold promising potential for a range of applications in the energy storage sector.Keywords: Activated Carbon, Capasitance, Supercapacitor
Co-Authors Abdullah Abdullah Adam, Muhammad Agustina Ginting Ahmad Taufik Rawi Cholish Cholish Devita, Rischa Faisal Lubis Ferdinan Rinaldo Tampubolon Ginting, Agustina Gunoro Haq, Moh Zainul Indah Nurhidayati Juanta, Palma Juli Iriani, Juli Karima Indah, Sarah Khiarani, Suci MARIA BINTANG Marito Siagian, Sinta Meidi Wani Lestari, Meidi Wani Nainggolan, Tito Karnavia Purba, Angelia Purba, Arlina Pratiwi Purba, Switamy Angnitha R Tampubolon, Ferdinan Rinaldo Tampubolon, Ferdinan Rischa Devita Rischa Devita Saragih, Yessy Dea Sylvia Sarah Karima Indah Siagian, Sinta Siagian, Sinta Marito Simatupang, Eva Sinambela, Lamtiur Sinta Marito Siagian Sitinjak , Anna Angela Sri Indah Rezkika Suci Khairani Susaidin Sutan Pardede Tampubolon, Ferdinan Rinaldo Yessy Dea Sylvia Saragih yuvina