Article Per Year (5 Year)
p-Index From 2021 - 2026
1.835
P-Index
This Author published in this journals
All Journal JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Sains Materi Indonesia TABULARASA JURNAL PENELITIAN SAINTIKA Jurnal Ikatan Alumni Fisika Universitas Negeri Medan Jurnal Pendidikan Fisika PROSIDING SEMINAR KIMIA Jurnal Penelitian Pendidikan IPA (JPPIPA) Dinamisia: Jurnal Pengabdian Kepada Masyarakat JURNAL PENELITIAN BIDANG PENDIDIKAN EINSTEIN (E-JOURNAL) INPAFI (Inovasi Pembelajaran Fisika) IPER (Indonesian Physics Education Research) Jurnal Inovasi Pendidikan Sains dan Terapan
Makmur Sirait
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

Published : 41 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 41 Documents
Search

 1   2   3   4   5 
Supercapacitors from Reduced Graphene Oxide Material Doloksaribu, Maryati; Sirait, Makmur; Halawa, Erniwati; Harahap, Mukti Hamjah
Jurnal Penelitian Pendidikan IPA Vol 11 No 4 (2025): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i4.11027

Abstract

Reduced graphene oxide (rGO) has been chemically synthesized from graphite powder. Graphite powder is oxidized using a strong oxidizing compound to obtain graphite oxide, this process is called the Hummer Method. Graphite oxide is dispersed using an ultrasonic vibrator to peel off the graphite oxide layer and become graphene oxide. The epoxy group in graphite oxide is reduced using 80 wt% hydrazine compound at temperatures of 70????, 80 and 90????C to obtain reduced graphene oxide. Then rGO is characterized using Uv-Vis spectroscopy, and FTIR. The Uv-Vis spectrum shows that the absorbance of rGO decreases with increasing reduction temperature. Then the absorbance data is calculated for its optical constant using the Kramers-Kronig Method. The refractive index values ​​of the real and imaginary parts of the calculation results show that in the low energy region an increase in the optical constant value is obtained with the addition of rGO. Then rGO was used in supercapacitor fabrication using PVA as a binder, 1 M ????2????????4 electrolyte, and aluminum foil as a collector and the supercapacitor mass was obtained as much as 0.01 grams. From the cyclic voltammetry measurement, the capacitor capacitance value was obtained as much as 24.5 F/gr.
Co-Authors Anggriyani Anju Efreddi Sihombing Aulia Syafrianti Betty M Turnip Bhinar Mustika Aulia Cintia Agnes Sinaga Dedy Husrizal Syah, Dedy Husrizal Deo Demonta Panggabean Derlin Lumbantoruan Desi Kristin Lumban Gaol Gita Ravhani Anugrah Halawa, Erniwati Hana Daforosa R Siagian Herbert Sipahutar Herlinawati Herlinawati Irfandi Irfandi Jeliana Veronika Sirait Judihar Sitanggang Judihar Sitanggang, Judihar Juliman Simarmata Julizar Muttaqin Lestari Lumban Gaol Limbong, Debora Lumbantoruan, Derlin Maria Sitompul Maryati Evivani Doloksaribu Maryuna Maryuna Motlan . Mukti Hamjah Harahap, Mukti Hamjah Muttaqin, Julizar Nababan, Evani Doana Nainggolan, Elfi Dwi Ansa Nove Rosalina Sirait Novita . Nurdin Bukit Nurdin Bukit Nurfajriani Nurfajriani Pandi Sihaloho Parinduri, Sri Handayani Rahmatsyah Rahmatsyah Rameyanti Tampubolon, Rameyanti Rita Juliani Roby Saputra Harapan Sitindaon Sitindaon Sahyar . Sepriadi Berkat Simanjuntak Siaen, Euodia Sihombing, Anju Efreddi Sirait, Nove Rosalina Sitompul, Maria Sonita Br Sembiring Susy Pramanita Manurung Tetty Ompusunggu Unita S. Zuliani Nasution Usler Simarmata Usler Simarmata Winda Veronika