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All Journal Bionatura IPTEK The Journal for Technology and Science Journal of Mathematical and Fundamental Sciences JPSE (Journal of Physical Science and Engineering) SOSCIED Indonesian Journal of Electrical Engineering and Computer Science Abdimas : Jurnal Pengabdian Kepada Masyarakat Charm Sains : Jurnal Pendidikan Fisika Jurnal FisTa : Fisika dan Terapannya EJHEAA International Journal of Science and Mathematics Education Jurnal Pendidikan Kimia, Fisika dan Biologi Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam Journal of Higher Education and Academic Advancement
Heindrich Taunaumang
Universitas Negeri Manado
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Pengaruh Suhu Proses Karbonasi Terhadap Konduktivitas Listrik Arang Bambu Sebagai Elektroda Superkapasitor Messy Shania Pongajow; Heinrich Taunaumang; Farly R. Tumimomor; Alfrie M. Rampengan
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 2 No. 1 (2024): Maret : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v2i1.1880

Abstract

. Electrical energy is a primary need for every human being. Supercapacitors are sophisticated electrical energy storage devices that combine the advantages of conventional batteries and capacitors so that they have the ability to store energy better. The use of electrode materials is one of the factors that affect the effectiveness of supercapacitors, electrode materials can be made from polymeric materials, metal oxides, and porous materials such as activated carbon. Activated carbon is made through two main stages, namely the carbonization and activation stages. Bamboo charcoal is a solid product that uses bamboo raw materials through a carbonization process under high temperatures (high temperature charcoal). This research is a research using experimental method. From the research results, carbonized bamboo charcoal at temperatures of 300˚C, 350˚C, 400˚C, 450˚C and 500˚C has a higher electrical conductivity value as the carbonization temperature increases. So it can be concluded that the temperature in the carbonization process affects the electrical conductivity of bamboo charcoal.
Efek Suhu Aktivasi terhadap Struktur Mikro Material Karbon Aktif Pelepah Enceng Gondok untuk Aplikasi Elektroda Superkapasitor Heindrich Taunaumang; Ishak Pawarangan; Farly Tumimomor
Jurnal Pendidikan Kimia, Fisika dan Biologi Vol. 1 No. 6 (2025): November : Jurnal Pendidikan Kimia, Fisika dan Biologi
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupenkifb.v1i6.686

Abstract

Supercapacitor electrode material bassed on Pelepah Enceng Gondok Activated Carbon (KAPEG have been developed for increasing the performance of the supercapacitor application. The activated carbon surface structure and its properties strongly depend on the pyrolysis temperature and the type of activation methods. The bamboo carbon has been fabricated using pyrolysis method. The KAPEG was produced using chemical activation with H3PO4 as activation agent with variation of temperature activation 750oc have been carried out. Characterization of the surface structure (functional groups vibration) of bamboo carbon (CB) pyrolysis and the Pelepah enceng Gonddok activated carbon (KAPEG) were carried out using FTIR. The aim of this research is  to identify the functional groups vibration. he FTIR rssults shows absorption peeaks of functional groups of -OH, C=O, C-O, C-H and C-C vibration. The increasing of wavenumber of absorption peaks of functional groups -OH stretching, C=O stretching and C-H indicate that the functional groups bond for KAPEG samples becomes more stronger than for KPEG sample. The conclusion of this research are: the increasing of wavenumber of absorption peaks for functional groups indicates of more stronger of functional groups bond.
PENGEMBANGAN MODEL PEMBELAJARAN DIGITAL LITERASI “SCIENCE” MELALUI PENDEKATAN SAINTIFIK BERBASIS PROYEK PADA PEMBELAJARAN IPA DI SMP Posumah, Irvanda; Taunaumang, Heinrich; Rengkuan, Mariana
Journal of Higher Education and Academic Advancement Vol. 1 No. 6 (2024): European Journal of Higher Education and Academic Advancement
Publisher : PT. Antis International Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61796/ejheaa.v1i6.682

Abstract

The primary characteristics of 21st-century learning emphasize the importance of digital literacy in preparing individuals to manage information, collaborate, and adapt to rapid changes in the digital society. A project-based digital literacy learning model is crucial as it equips students with necessary skills to navigate effectively in an increasingly interconnected digital world through authentic projects integrating digital technology, enabling them to learn, innovate, collaborate, and communicate effectively in a continually evolving global context. This development study aims to produce a valid, practical, and effective "SCIENCE" Digital Literacy Learning Model based on project approaches. The research method employed is the 4D R&D model (Define, Design, Development, Dissemination). This study was conducted at SMP Advent 5 Kairagi Weru, Grade VIII, Second Semester of the Academic Year 2023/2024. Research instruments used include interviews, observations, questionnaire surveys, and achievement tests. Data analysis techniques utilized descriptive statistics. Based on the research findings, the validity test results of the project-based "SCIENCE" digital literacy learning model were categorized as valid with a percentage of 88.89%. Practicality assessment based on teacher questionnaire responses indicated a very practical category with a percentage of 91.67%, while student questionnaire analysis also indicated a very practical category with a percentage of 94.46%. The effectiveness test results were categorized as highly effective with a percentage of 88%. In conclusion, it can be inferred that the "SCIENCE" Digital Literacy Learning Model meets the criteria of being valid, practical, and effective.
Crystalline Structure Analysis of Bamboo and Coconut Coir–Based Activated Carbon for Supercapacitor Electrode Applications Heindrich Taunaumang; F. Tumimomor; A.M. Rampengan
International Journal of Science and Mathematics Education Vol. 2 No. 4 (2025): December: International Journal of Science and Mathematics Education
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijsme.v2i4.277

Abstract

Activated carbon has been developed for supercapacitor electrode material due to their high degree of micro porosity and large surface area. The carbon source, preparation conditions such as temperature and atmosphere, and preparation method strongly influence the crystalline structure and the properties of carbon materials. This article is focused on the crystalline structure analysis of bamboo and coconut coir activated carbon The bamboo and coconut coir carbon were fabricated by using pyrolysis method. The activated bamboo carbon and activated coconut coir carbon were produced using a chemical activation method where H3PO4 solution as activator agent. Characterization of the physical/crystalline structure of the bamboo carbon (BC), and coconut coir carbon (CCC) and bamboo activated carbon (BAC), coconut coir activated carbon (CCAC) was determined using XRD measurement. The XRD spectra of BC and BAC indicate that the percentage crystallinity are 29.1%, and 18.4% respectively. For CCC and CCAC the percentage crystallinity are 11.3% and 13.2%, respectively. The interlayer spacing (dhkl) for BC is 4.05 Angstrom, and for BAC is 3,79 Angstrom. The crystallite height (Lc) for BAC is 6.64 Angstrom and for BC is 21.56 Angstrom. The interlayer spacing (dhkl) for CCC and CCAC are the same 4.05 Angstrom. The crystallite height (Lc) for CCAC is 4.96 and for CCC is 2.83 Angstrom.
Penerapan Model Learning Cycle 5E Dalam Meningkatkan Keterampilan Proses Sains dan Hasil Belajar Siswa Titdoy, Afni; Tumangkeng, Jeane Verra; Silangen, Patricia Mardiana; Taunaumang, Heindrich; Makahinda, Tineke; Sompotan, Armstrong
Charm Sains: Jurnal Pendidikan Fisika Vol 7 No 1 (2026): FEBRUARI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

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Abstract

This research aims to determine the enhancement of students' science process skills (KPS) and learning outcomes in class XI at SMA Negeri 2 Tondano using the learning cycle type 5E model on the static fluid topic. This study is a Classroom Action Research (CAR) conducted in two cycles, each involving planning, action, observation, and reflection phases. The research subjects were 18 students from the Physics Interest class (XI Peminatan Fisika). The results showed a significant increase in both learning outcomes and science process skills. In cycle I, the average N-Gain for learning outcomes was 0.50 (moderate category), and it increased to 0.63 (moderate category) in cycle II, with the percentage of students achieving mastery learning reaching 94.44%. The average score for science process skills also rose substantially from 67.94 (sufficient category) in cycle I to 89.52 (very good category) in cycle II. The discussion demonstrates that the five stages of the learning cycle 5E model directly facilitate the construction of conceptual understanding and the development of students' scientific inquiry abilities. It can be concluded that the application of the learning cycle 5E model is highly effective in improving students' science process skills and learning outcomes in physics.
Karakterisasi Gugus Fungsi Arang Aktif Sabut Kelapa dengan Metode Pirolisis Talubun, Anthoni; Taunaumang, Heindrich; Rampengan, Alfrie Musa
Jurnal FisTa Fisika dan Terapannya Vol 7 No 1 (2026): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Activated charcoal can be produced from carbon-containing materials or from activated charcoal to get a wider surface area. Coconut coir is a part of coconut waste that is rarely forgiven. The researcher discussed the functional groups of activated charcoal from coconut coir with 10 ml of KOH activator. The purpose of this study was to determine the active charcoal content contained in coconut coir. The method used is the pyrolysis method in which combustion occurs in a furnace without oxygen at a temperature of 4000C. The analysis carried out by the researchers included a wave number spectrum analysis using the FTIR tool for coconut coir activated carbon. The identification results using the FTIR spectrophotometer showed that the activated charcoal in this study contained functional groups O-H, -O-, C-O, C=C, C-H
Karakterisasi Struktur Karbon Aktif Sabut Kelapa Sebagai Material Elektroda Superkapasitor Tasik, Vonni; Taunaumang, Heindrich; Tumimomor, Farly
Jurnal FisTa Fisika dan Terapannya Vol 7 No 1 (2026): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In today's modern life, electrical energy has become a primary need that cannot be avoided. Supercapacitors are a new breakthrough in the field of energy storage, where supercapacitors have a higher power density than batteries and have a higher energy density compared to conventional capacitors. This study characterized the structure of coconut fiber activated carbon activated with NaOH with varying concentrations of 3 M and 5 M. Testing on X-ray Diffraction (XRD) showed the absence of sharp peaks which confirms that this activated carbon is amorphous, meaning carbon that is not arranged in a perfect crystal. Meanwhile, the FTIR test of 3M Coconut Fiber Activated Carbon confirmed many oxygen groups (C-O 1044 cm-1 1044 cm-1, strong aromatic peak (1567 cm⁻¹), more polar surface, and higher concentration of 5M deoxygenation (C–O weakens/disappears), more graphitized aromatic structure, higher porosity (CO₂ adsorbed ↑), more nonpolar surface. Meanwhile, coconut fiber charcoal (without activation) confirmed the main chemical components of coconut fiber, especially dominant cellulose, lignin and hemicellulose.
Identifikasi Mineral Batuan Mata Air Panas Bukit Kasih Kanonang Menggunakan SEM-EDX dan FTIR Christina Sorongan; Donny Royke Wenas; Jeilen Gabriela Nikita Nusa; Heindrich Taunaumang; Vistarani Arini Tiwow
Jurnal FisTa Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67006/fista.v6i2.469

Abstract

North Sulawesi has considerable geothermal potential as evidenced by the emergence of several types of geothermal manifestations, one of which is located in Kanonang village, precisely on the hill of Kasih Kanonang. The purpose of this research is to determine the rock structure and type of rock contained in the rock in the manifestation area located on the hill of love kanonang. The method to be used in this research is to analyze in the laboratory using SEM-EDX tools and FTIR tools. The results showed that the mineral content and mineral types of geothermal manifestations of hot springs in kanonang love hill have 3 elements namely Oxygen, Silica, and Aluminum with a percentage content of O 66.60%, Si 31.25%, and Al 0.73%.
Pemanfaatan Karbon Aktif dari Limbah Kulit Pisang Kepok (Musa Paradisiaca L) sebagai Elektroda Superkapasitor Khariezmathika Ester Kapantow; Alfrie Musa Rampengan; Farly Reynol Tumimomor; Heindrich Taunaumang; Sixtus Iwan Umboh
Jurnal FisTa Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67006/fista.v6i2.473

Abstract

In recent years, attention to renewable energy has increased, especially in electrical energy. One of the emerging technologies in supporting electrical energy storage is supercapacitors. This study aims to determine the effect of variations in the concentration of KOH solution on the current and voltage characteristics produced by supercapacitor electrodes made from activated carbon from kepok banana peel waste (Musa Paradisiaca L). By using dehydration method 80°C, carbonization at 400°C, chemical activation with 5M, 6M, and 7M KOH solution, and physical activation at 750°C. The results showed that the concentration of KOH activator from 5M, 6M, to 7M increased the electric voltage to 0.641 V, 1.078 V, and 1.448 V and electric current to 10.3 mA, 11.6 mA, and 28.5 mA, respectively. However, the density and conductivity values showed different patterns, with density values of 1.2446 A/
Pemanfaatan Karbon Aktif dari Cangkang Kemiri sebagai Elektroda Superkapasitor Kezia Kawulur; Heindrich Taunaumang; Sixtus Iwan Umboh; Cyrke Adfie Netty Bujung; Kamaruddin
Jurnal FisTa Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67006/fista.v6i2.475

Abstract

The energy crisis is one of the major challenges facing the world today, triggered by over-reliance on fossil energy sources, rapid population growth, and the threat of climate change. One technology that attracts attention is supercapacitors. The purpose of this study was to determine the effect of carbon activation using KOH with varying concentrations on electrical conductivity as a supercapacitor electrode. By using dehydration method, carbonization at 500℃. The chemical activation process is treated with variations in KOH concentration of 6M, 7M, 8M with physical activation in a furnace at 750℃. The test results of conductivity and density values show that the comparison with the increase in KOH concentration results in an increase in conductivity of 0.1012 S/m, 0.1694 S/m, and 0.3282 S/m. Accompanied by a decrease in density of 9.8810 A/
Co-Authors A.M. Rampengan Agustinus Elath Alfrie Musa Rampengan Alfrits Komansilan Armando Ariakta Aloanis Armstrong F. Sompotan Arsel Bungkuran Aslam Rais Asterlita Tirsa Raha Aswin Hermanus Mondolang Christina Sorongan Cosmas Poluakan Cyrke A N Bujung Dolok Saribu, Chicha R. A Donny Royke Wenas Dumais, Raindy Xaverius F. Tumimomor Farly Reynol Tumimomor Ferdy Dungus Ferry Johnny Sangari Herman - Herman Herman Hiunsee, Alni Irvanda Posumah Ishak Pawarangan Iwan Sixtus Umboh Jeane V. Tumangkeng Jeferson Polii Jeilen Gabriela Nikita Nusa Jimmy Lolowang Kalele, Elshadai Christiani Kamaruddin Kamaruddin Kezia Kawulur Khariezmathika Ester Kapantow Kimbal, Ariel Javi M. O. Tjia Marcelita Tjuana Mariana Rengkuan Messy Shania Pongajow Muhammad Zulkifli Natalia Pandoh Nicky K. Tumalun Olivia Kombongkila P E Golioth Pamela Sifra Lumingas parabelem tinno dolf rompas Patricia Mardiana Silangen Pondaag, Jinno Posumah, Irvanda Prisilia Wakary Priskilla Wulandari Polimpung Rende, Jeane Cornelda Rini Indri Sesar Prabu Dwi Sriyanto Sesar Prabu Dwi Sriyanto Sinta Dewi Tulende Siregar, R.E. - Sisca Cicilya Sabonbali Stefan Sindim Stevi Anjelo Langitan Talubun, Anthoni Tasik, Vonni Tesalonika Lontoh Theresje Mandang Tineke Makahinda Titdoy, Afni Tjia, M.O. - Uada, Putri Angel Vistarani Arini Tiwow Wenas, D.R -