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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Spektra Journal of Aceh Physics Society JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Litbang Industri Jurnal Edu Research BULETIN FISIKA JOURNAL ONLINE OF PHYSICS Turbo : Jurnal Program Studi Teknik Mesin Spektra: Jurnal Fisika dan Aplikasinya Communications in Science and Technology Indonesian Physical Review APTEK Jurnal Fisika Indonesia Teknomekanik Unri Conference Series: Community Engagement Journal of Applied Materials and Technology Journal of Technomaterial Physics Dinamika Lingkungan Indonesia Jurnal Litbang Industri PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Newton-Maxwell Journal of Physics National Multidisciplinary Sciences Science, Technology, and Communication Journal Journal of Engineering and Technological Sciences
Erman Taer
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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ANALISA SIFAT ELEKTROKIMIA ELEKTRODA SUPERKAPASITOR BERBASIS KARBON AKTIF DARI KULIT SINGKONG Eva Wahyuni Harahap; Eman Taer; Ari Sulistyo Rini
Komunikasi Fisika Indonesia Vol 20, No 2 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.20.2.115-122

Abstract

Another problem from technological developments and advancements is the increase in population which causes increasingly complex waste management problems. One type of  urban waste is waste caused by industrial waste such as waste from processing cassava or cassava. The use of cassava peel as a precursor of activated carbon with a high specific capacitance value has been proven. The resulting carbon powder is converted in the form of pellets or monoliths using a hydraulic press without the addition of adhesives. The carbonization process is carried out from room temperature to 600°C in an N2 gas environment, while the physical activation process is carried out from 600°C to a high temperature of 850°C in a CO2   gas environment. Density analysis was reviewed as an initial evaluation of porous carbon electrodes. Furthermore, the electrochemical properties of the supercapacitor were evaluated  through three different techniques including cyclic voltammetry (CV), galanostatic charge discharge (GCD) and electrochemical impedance spectroscopy (EIS) techniques in a two-electrode system in 1 M H2SO4 electrolyte. The results of the research have obtained carbon electrodes from cassava peel waste through chemical and physical activation processes. After testing the electrochemical properties of the supercapacitor electrode, the specific capacitance value of the supercapacitor cell on the chemical activator ZnCl2 with a concentration of 0.3 M and 0.7 M, respectively, was 196 F/g, 176.7 F/g in the CV method of 183.62 F/g, 147.64 F/g on the GCD method and 135 F/g, 126.6 F/g on the EIS method. These results confirm that the cassava peel has the potential to be used as a porous activated carbon for the base material for supercapacitor electrodes.
Identifikasi Potensi Limbah Lidi Kelapa Sawit sebagai Sumber Karbon untuk Aplikasi Penyimpanan Energi Super-kapasitor Julnaidi Julnaidi; Edy Saputra; Erman Taer
National Multidisciplinary Sciences Vol. 2 No. 3 (2023): Proceeding SEMARTANI 2
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/nms.v2i3.274

Abstract

Karbon berbasis biomassa untuk aplikasi penyimpanan energi superkapasitor menjadi salah satu kajian terkemuka saat ini dikarenakan sifat fisis dan elektrokimia mereka yang menguntungkan seperti porositas tinggi, konduktivitas baik, stabilitas termal dan kimia stabil. Selain itu, ketersediaan yang berlimpah dan proses sintesisnya yang relatif sederhana menjadikan biomassaa sebagai sumber karbon yang diminati. Pada tudi ini, telah dilakukan kajian tentang identifikasi potensi limbah padat perkebunan khususnya lidi kelapa sawit sebagai sumber karbon alami untuk aplikasi teknologi penyimpanan energi super-kapasitor. Keterbaharuan disoroti pada desain karbon alami yang disiapkan dalam bentuk padat menyerupai koin dengan tanpa adanya penambahan bahan perekat sintetik. Limbah lidi sawit dikonversi menjadi karbon padat dengan proses mudah dan ramah lingkungan melalui pra-karbonisasi, aktivasi kimia, konversi serbuk kedalam bentuk koin dan pirolisis satu langkah terintegrasi. Berdasarkan analisis penyusutan dimensi fisisnya, karbon padat menunjukkan struktur porositas dengan kepadatan yang dipertahankan 0.41 g/cm3. Sifat elektrokimia dari elektroda karbon yang telah dihasilkan ditinjau melalui teknik cyclic voltammetry (CV) dan galvanostatic charge-discharge (GCD) dalam elektrolit 1 M H2SO4. Kapasitansi spesifik tertinggi didapatkan sebesar 140 F/g pada rapat arus 1 A/g. Hasil yang sangat baik ini menunjukkan bahwa pengembangan metode yang diterapkan dan desain bahan elektroda berbasis karbon-biomassa yang dipelajari sangat mungkin untuk mencapai keseimbangan kinerja yang sangat cocok dalam perangkat superkapasitor simetris.
PENGARUH DOPING CHROMIUM TERHADAP SIFAT MAGNETIK NANOPARTIKEL OKSIDA BESI Indah Tamara Sitorus; Erwin Amiruddin; Juandi Muhammad; Erman Taer
Indonesian Physics Communication Vol 20, No 3 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.20.3.231-236

Abstract

The purpose of this study is to determine the magnetic properties expressed in the hysteresis loop as well as the morphology of iron oxide nanoparticles from iron sand of Logas Village, natural sand, which were doped with chromium. The separation between magnetic and non-magnetic particles was carried out using the strong magnet neodymium iron boron (NdFeB). Magnetic nanoparticle preparation was carried out by ball milling method for 100 hours which is called BM3. The BM3 product was divided into three parts with the same amount of weight namely  BM3A, BM3B, and BM3C. These products was doped with chromium with concentrations of 0, 10, and 20 (wt%) using ball milling for 20 hours. Magnetic properties were tested using a vibrating sample magnetometer and nanoparticle morphology with a scanning electron microscope (SEM). The magnetic properties of the samples were studied based on loop hysteresis showed that saturation magnetization, remanent magnetization, coercivity, loop squareness, and loop area decreased along with the addition of chromium doping concentration in the sample. The results of the SEM test showed that as the doping concentration was added to the sample the particle size became smaller, namely 1.316, 1.308, and 0.856 μm.
MEASUREMENT OF INFUSION FLOW RATE USING A DROPLET SENSOR BASED ON ARDUINO UNO Khairul Ihsan; Rahmondia Nanda Setiadi; Erman Taer; Lazuardi Umar
JOURNAL ONLINE OF PHYSICS Vol. 9 No. 1 (2023): JOP (Journal Online of Physics) Vol 9 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v9i1.28946

Abstract

A research has been conducted to help the medical staff in the hospital. The purpose of this study is to calculate and regulate the infusion flow rate of the infusion into the patient's body. This research uses an experimental method. The liquid released from the infusion is converted into droplets, which are then detected by the LM393 optocoupler sensor, which consists of three sensors arranged around the detection area by emitting infrared light through a transmitter to detect the shadow of the droplet so that the signal is received by the receiver of the optocoupler sensor. Which is processed with the Arduino Uno microcontroller. The Arduino Uno provides the results received from the sensor and coded using the Arduino IDE software to be displayed on a 16x2-character Liquid Crystal Display (LCD). The sample used in this study was Sodium Chloride (NaCl). The calibration tools performed were droplet sensor test, servo motor test, and Real Time Clock (RTC) DS3231 module test. The results of the detection in the droplet sensor configuration showed a high degree of accuracy, with an error value of 2.414%. so that this research can be implemented in the detection and appropriate management of infusion flow rates. The current testing being carried out is still on a laboratory scale. However, in the future, this system can be developed to monitor infusions in real-time over a longer period of time and using more complex data processing functions.
Effectiveness of adding ZnO thin films to metamaterial structures as sensors Saktioto Saktioto; Yan Soerbakti; Ari Sulistyo Rini; Budi Astuti; Erman Taer; Rahmondia Nanda Setiadi; Syamsudhuha Syamsudhuha; Sofia Anita; Yolanda Rati
Indonesian Physics Communication Vol 21, No 1 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.1.13-24

Abstract

Metamaterials are artificial materials with the characteristics of a negative refractive index and high resonance sensitivity. Advanced engineering in metamaterials can realize great potential in combination with zinc oxide (ZnO) semiconductor materials, which can increase the efficiency of sensor technology compared to other conventional material models. This research aims to investigate the optical properties and develop an invention for a hybrid sensor media based on a split ring resonator (SRR) metamaterial structure integrated with a thin layer of ZnO. The research methodology was carried out by simulation by designing and characterizing SRR metamaterials which were designed with variations in SRR patterns, geometry, substrate materials, unit cell configurations, and variations in the thickness of the ZnO thin layer. Geometry characterization of SRR metamaterials was carried out using the Nicolson-Ross-Weir electromagnetic (EM) field function approach, specifically the optical parameters permittivity, permeability, and refractive index. They are optimizing the performance of hybrid sensor components based on metamaterials and ZnO thin films using the GHz scale EM field function approach, especially in the reflection, transmission, and absorption spectrum. Analysis of metamaterial characteristics identifies the optical properties of permittivity, permeability, and negative refractive index which are increased and optimized from the thin layer integration model 200 nm thick ZnO in the SRR metamaterial structure with a 3×3 square pattern configuration at a resonance frequency of 1.889 GHz. The performance of the hybrid sensor media provides a resonant frequency of three equal bandwidths in the frequency range 2.89 – 3.52, 5.28 – 6.54, and 7.57 – 8.46 GHz. In addition, the highest absorption spectrum of 73% is at a frequency of ~8 GHz.
Potential of palm frond waste as a basic material for making porous activated carbon Novi Yanti; Pharada Kresna; Muhammad Nasir; Rakhmawati Farma; Lilik Tri Hardanto; Rika Taslim; Erman Taer
Indonesian Physics Communication Vol 21, No 1 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.1.99-108

Abstract

Palm frond waste (Elaeis guineensis Jacq.) has been successfully processed as a raw material in the manufacture of porous activated carbon through the development of tools and methods. Preparation of raw materials, drying, pre-carbonization using an energy-efficient furnace, washing, integrated pyrolysis (N2/H2O), neutralization, and conversion of carbon powder into monolith coins are the general steps for making porous activated carbon. The focus of this research lies in increasing the production of activated carbon from a laboratory scale to an industrial scale through efficiency in all aspects of production. Precarbonization and pyrolysis are important stages in increasing the scale of activated carbon production. Currently, the conversion of biomass waste into carbon is still on a laboratory scale, namely by using an electric oven which is not time efficient, not economical and not energy efficient. Increasing the scale of pre-carbonization is carried out by replacing the use of electric ovens with modified energy-saving furnaces that can increase carbon production up to 74% in a very efficient time. Furthermore, the physical activation stage (pyrolysis) is carried out in a water vapor (H2O) environment and without the addition of chemicals as activating agents, of course it is more economical and environmentally friendly. This scale-up is the main key in the development of porous carbon which has high potential for application as a component in energy storage devices, namely electrodes in supercapacitors. Through these results it is known that the fronds of palm leaves have great potential as a basic material for making sustainable activated carbon to be forwarded to an industrial scale.
Pengaruh Temperatur Karbonisasi Terhadap Sifat Fisis dan Elektrokimia Elektroda Karbon dari Daun Kepayang (Pangium Edule Reinw) sebagai Sel Superkapasitor Syahrul Syahrul; Bidayatul Armynah; Erman Taer
BULETIN FISIKA Vol 25 No 2 (2024): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2024.v25.i02.p10

Abstract

The increasing demand for renewable energy resources, supercapacitors are becoming important devices due to their high specific energy and specific power performance. This research focuses on using Kepayang leaves as a basic material for supercapacitor carbon electrodes. This research involves making active carbon from Kepayang leaves through a carbonization process at temperatures of 500, 600, 700, and 800 oC for 1 hour with chemical activation using ZnCl2. The characteristics carried out include density analysis, Fourier Transform Infra-Red (FTIR), X-ray diffraction (XRD), and Cyclic Voltammetry (CV). The density analysis results show that with every increase in temperature, the density decreases. Functional groups in the FTIR spectrum show that C bonds are formed, while XRD analysis shows an amorphous structure both before and after pyrolysis. The electrochemical properties of Kepayang leaf carbon show that the diffusion process is getting better as the carbonization temperature is higher. The highest specific capacitance obtained was based on the results of CV 91 F/g at a temperature of 700 oC.
Pengaruh Temperatur Aktivasi Fisika Terhadap Daya Serap Iodium Karbon Aktif Berbahan Dasar Limbah Plastik Polyethylene Terephthalate (PET) Khotimah, Nur; Martin, Awaludin; Taer, Erman
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 1 (2024): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i1.3314

Abstract

Plastik sebagai inovasi dalam dunia material telah membawa dampak besar terhadap pencemaran lingkungan. Dampak negatif yang dihasilkan menjadi semakin nyata seiring dengan peningkatan produksi dan penggunaannya. Polyethylene terephthalate (PET) adalah jenis plastik yang digunakan dalam pembuatan botol minuman, kemasan makanan, dan berbagai produk lainnya. Solusi yang sedang dikembangkan untuk mengatasi permasalahan tersebut adalah pemanfaatan limbah plastik sebagai bahan dasar pembuatan karbon aktif. Karbon aktif adalah adsorben yang digunakan dalam aplikasi filtrasi air, pemurnian gas, dan pengolahan limbah. Daya serap Iodium (DSI) merupakan parameter yang sangat penting dalam menentukan kualitas dari suatu karbon aktif sebagai adsorben. Penelitian ini bertujuan untuk mengetahui nilai DSI pada karbon aktif berbahan dasar limbah plastik PET. Metode penelitian ini adalah plastik PET dikarbonisasi pada temperatur 400ºC selama 240 menit. Kemudian diaktivasi fisika pada variasi temperatur 800ºC dan 850ºC selama 120, 180 dan 240 menit. Karbon aktif yang dihasilkan pada penelitian ini telah memenuhi standar SNI 06-3703-1995 dengan hasil pengujian DSI paling optimum terdapat pada karbon aktif yang diaktivasi pada temperatur 800ºC selama 240 menit yaitu sebesar 895,78 mg/g.
An Introductory Study on Activated Carbon Monolith Electrodes Fabrication from Teak Leaf Waste Taer, Erman
Journal of Technomaterial Physics Vol. 1 No. 1 (2019): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v1i1.822

Abstract

A preliminary study has been conducted on supercapacitor carbon-electrode monolith prepared from teak leaf waste. The objective of this study is to know the electrochemical cell capacitance from carbon materials. The production of carbon electrode began with pre-carbonization process at 2500C for 2.5 hours, then proceeded to chemical activation using KOH activator with concentration of 0.3 M. Hydraulic Press was used with pressure at 8 ton to form the monolith. Then, the density was measured the carbonization. After that the sample was activated using CO2 gas at 8500C burning temperature. Next after the carbonization, the density was measured by collecting mass, diameter and thickness data of the electrode. The specific capacitance was measured using Physics CV UR Rad-ER 5481 which is controlled by a cyclic voltammetry software with the potential window width of 0 – 0.5 V and at a scan rate of 1 mV/s. The best density results obtained were 0.853 g/cm3 before carbonization for sample code C24 and 0.605 g/cm3 after carbonization for sample C30. The specific capacitance was found at 113.20 G/g for C32 and C38 electrodes
Three-dimensional pore structure of activated carbon monolithic derived from hierarchically bamboo stem for supercapacitor application Taer, Erman; Pratiwi, Lini; Apriwandi, Apriwandi; Mustika, Widya Sinta; Taslim, Rika; Agustino, Agustino
Communications in Science and Technology Vol 5 No 1 (2020)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1000.712 KB) | DOI: 10.21924/cst.5.1.2020.180

Abstract

A three-dimensional pore structure on activated carbon derived from hierarchically bamboo stem was synthesized in the monolithic form for increased applicability as a supercapacitor electrode. The preparation involved two step carbonizations, using a chemical activation at different concentrations. Subsequently, the morphology, chemical content, specific surface area and pore size distribution, as well as crystalline degree were evaluated with scanning electron microscopy, energy X-ray (EDX), N2 sorption and X-ray diffraction, respectively. Therefore, cyclic voltammetry (CV) was used to assess the electrochemical performance, in a two electrode system. The result shows the significant impact of the three-dimensional structure on electrochemical performance, and the optimized sample exhibited specific capacitance of 168.8 F g-1, energy density of 23.44 Wh kg-1, and power density of 84.46 W kg-1.
Co-Authors ', Rika ', Sugianto A. Ira Afdhal Rizki Afrinal, Afrinal Agustino Agustino Agustino Agustino Agustino Agustino Agustino Agustino Agustino Agustino Agustino, Agustino Ahmad Fudholi Akrajas Ali Umar Andika Afrianda Anisa Indriawati Anita, Sofia Antonius Surbakti Antonius Surbakti Antonius Surbakti Apriwandi Apriwandi . Apriyani, Irma Awaludin Martin Awitdrus Awitdrus, Awitdrus Azwat, Luqyana Adha Bidayatul Armynah Budi Astuti Chitraningrum, Nidya D.N. Sarah D.N. Sarah, D.N. Decha Apriliany Suwandi Delovita Ginting, Delovita Deniza, Rindhu Nabila Desmagrini Desmagrini Desmawati Desmawati Dewi Marina Dewi Ramayani Eko Nur Arif Erwin Amiruddin Erwin Erwin Eva Wahyuni Harahap Fachry Abda El Rahman Fairuzy, Zeeva Khalilah Fitria Puspita Sari Gina Sania H. Yusra Harahap Eva Wahyuni Hardanto, Lilik Tri Hasanah, Fainida Hefniati Hermansyah Aziz Husna, Ropiqotul Indah Tamara Sitorus Indriawati, Anisa Inrizky Domy Muchammadsam Iwantono Iwan Barnawi Jasril Jasril Juandi Juandi Julnaidi Julnaidi Julnaidi, Julnaidi Juwita Ade Putri Khairul Ihsan Khotimah, Nur Khumairah, Zahra Kresna, Pharada Kristin Natalia Kusmawati, Intan Lazuardi Umar Lilik Tri Hardanto Lutfi Rindang Lestari M. Paiszal Marina, Dewi Meisya, Meisya Melda Riyani Butet Melinda Vivi Miftah Ainul Mardiah Minarni Shiddiq Mohamad Deraman, Mohamad Mozaffari, Nastaran Mozaffari, Niloofar Muhammad Nasir Muhammad Nasir Mukhlis Mukhlis Mustika, Widya Sinta Nasruddin Nasruddin Novi Yanti Novi Yanti Novi Yanti Nur Akmal Nursyafni, Nursyafni Nursyaputri, Wan Mery Nurwijayanti Pandi Kurniawan Pharada Kresna Pratiwi, Lini Purba, Cenora Evelynza Putri, Hardini Chania Putri, Rahma Lia R. Farma R. Farma R. Farma, R. R. Syech R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim, R. Rahmi Dewi Rahmondia N. Setiadi Rahmondia Nanda Setiadi Rakhmawati Farma Rati, Yolanda Retno Handayani Riad Syech Riduan Alvinsen Sirait Rika ' Rika Taslim Rika Taslim Rika Taslim Rika Utari Rikaryalita Novitra Rini, Ari Sulistyo Romi Fadli Syahputra S. Aiman S. D. Hartati S. Nurjanah Saktioto Saktioto Salomo Salomo Septa Herniyanti Sitorus, Afrida Helena Sri Yanti Sugianto ' Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugiyanto Sugiyanto Sukendi Sukendi Sulistyo Rini, Ari Supian, Faridah Lisa Syahrul Syahrul Syamsudhuha Syamsudhuha T. Oktaviani Taslim Rika Usman Malik W. S. Mustika W.S. Mustika Wetya Fatma Kumala Sari Widodo Budi Kurniawan Yan Soerbakti Yan Soerbakti Yana, Debi Yanuar Hamzah Yolanda Rati Zikri Alrifani Zulkarnain Usman Zulkifli ' Zulkifli Zulkifli Zulkifli Zulkifli Zurya Hanifa