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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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Author-ID : 400021

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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PENGARUH TEMPERATUR AKTIVASI FISIKA TERHADAP KINERJA SUPERKAKASITOR BERBASIS ELEKTRODA KARBON DARI AMPAS SAGU Erman Taer; Zikri Alrifani; Rika Taslim
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

The manufacture of activated carbon based on sago pulp as a super-capacitor cell electrode has been successfully performed. Preparation of activated carbon begins with heating of drying raw materials in the sun and followed by oven drying, pre-carbonization, milling, sieving, chemical activation with 2 M concentration KOH solution, pellet printing, carbonization at 600° C using N2 gas followed by physics activation with temperature variation of 700° C; 750° C; 800° C; 850° C; 900° C using water vapor and polishing of pellets are some of the steps that are followed. Carbon electrode density values for each sample of AC 700, AC 750, AC 800, AC 850, and AC 900 are 0,790 g/cm3, 0,791 g/cm3, 0,795 g/cm3, 0,760 g/cm3, dan 0,754 g/cm3. The SEM results show the shape of the particles formed unoccupied. EDX test results show the percentage of carbon reaches 90.13%. The measurement of electrochemical properties performed by cyclic voltammetry method yielded an optimum specific capacitance of 106 F/g obtained at a temperature of 750° C.

PENGARUH KONSENTRASI KOH TERHADAP SIFAT FISIS DAN ELEKTROKIMIA ELEKTRODA KARBON DARI LIMBAH KULIT DURIAN SEBAGAI SEL SUPERKAPASITOR Pandi Kurniawan; Erman Taer; Usman Malik; Rika Taslim
Komunikasi Fisika Indonesia Vol 15, No 1 (2018)
Publisher : Universitas Riau

Activated carbon electrode have been prepare from durian shell focused in KOH concentration variations at chemical activation process. The preparation of carbon electrodes begins with pre-carbonization process, grinding using Hard Grinder and ball milling, after that followed by sieving process with particle size at range of 39 - 52 μm. Chemical activation was performed by using KOH activator agent with concentration variation of 0.5 M, 0.6 M, 0.7 M. Carbon powder are formed to pellet form using Hydraulic Press at a 8 ton compression pressure. The carbonization process is carried out a temperature of 600°C in the N2 gas atmosphere at a temperature of 900°C for 2 hours. The electrodes characterization are performed to determine the physical and electrochemical properties.The physical properties such as density, degree of cristanility, surface morfology was analyzed by calculate the electrode dimension such as, mass, thickness and diameter, X-ray diffraction analysis and Scanning Electron Microscopy Analysis. the electrochemical properties was studied the cell capacitance and the electrode capacitance specific using Cyclic Voltammetry method. the electrode density were decrease with the increasing the KOH concentration. The smallest density has been found at electrode using a KOH concentration of 0.7 M. The XRD test showed a carbon was amorfphuse structure identified by existing two broadening peaks at an angle of 2θ, ie 24.967°, 44.315° and 81.332° which describes the (002), (100) and (112) planes. Furthermore, samples were analyzed by Scanning Electron Microscopy and X-ray diffraction. The cyclic voltammetry result, obtained the highest specific capacitance of 89.05 F/g and cell capacitance 24,04 F was found at electrode with a KOH concentration of 0.7 M. From this research it can be concluded that the KOH optimum concentration was 0.7 M.

PEMANFAATAN AMPAS SAGU SEBAGAI ELEKTRODA KARBON SUPERKAPASITOR Andika Afrianda; Erman Taer; Rika Taslim
Komunikasi Fisika Indonesia Vol 14, No 2 (2017)
Publisher : Universitas Riau

Penelitian pembuatan karbon aktif berbasis sagu sebagai elektroda superkapasitor telah berhasil dilakukan. Tahap pertama produksi karbon aktif dimulai dengan mengeringkan limbah ampas sagu dibawah sinar matahari dan dilanjutkan dengan pengeringan oven, prakarbonisasi, penggilingan, pengayakan, aktivasi kimia dengan larutan KOH konsentrasi 0,2 M, pencetakan pelet, karbonisasi pada 600 °C diikuti aktivasi fisika pada suhu 850 °C dan pemolesan pelet. Sampel yang dikeringkan dalam oven dilakukan pada suhu 110 °C dan prakarbonisasi dilakukan pada suhu 100 °C sampai 250 °C selama 2 jam. Sampel digiling dengan menggunakan penggilingan mortar dan ball milling. Aktivator 0,2 M KOH digunakan untuk meningkatkan luas permukaan elektroda. Aktivasi fisika menggunakan H2O selama 1,5 jam. Karakterisasi sifat fisis dilakukan dengan pengukuran densitas, stabilitas termal (TGA) dan SEM dan sifat elektrokimia dilakukan dengan metode voltametri siklik dengan variasi scan rate 1, 2 dan 5 mV/s. Hasil kapasitansi spesifik optimum karbon aktif berbasis sagu untuk superkapasitor ditemukan pada scan rate 1 mV/s sebesar 74,85 F/g.

EFEK PENAMBAHAN PARTIKEL MAGNETIK Fe3O4 TERHADAP KEMAMPUAN SERAPAN KARBON AKTIF SERBUK GERGAJI KAYU PADA LOGAM BERAT BESI (Fe) Erman Taer; Sugianto '; Rika '
Komunikasi Fisika Indonesia Vol 12, No 11 (2015)
Publisher : Universitas Riau

Telah dilakukan study tentang aplikasi karbon aktif magnetik dari serbuk gergaji kayu karet (SGKK) sebagai penyerap logam berat Fe. SGKK diaktivasi menggunakan larutan KOH sebagai aktivator kimia, kemudian SGKK dicampur dengan FeCl3 sebagai prekursor nanopartikel magnetik dan dikarbonisasi pada suhu 850 0 C dalam lingkungan gas Nitrogen (N2). Karakterisasi SEM, EDX, dan XRD bertujuan untuk melihat morfologi permukaan, komposisi kimia, serta strukstur sampel. Hasil pengujian SEM menunjukkan bahwa composite carbon dan nano-Fe3O4 telihat dengan kebera nano-Fe3O4 merata pada permukaan karbon. Pengujian EDX memastikan bahwa partikel yang terdapat pada permukaan karbon adalah unsur Fe3O4. Hasil Uji XRD menunjukkan bahwa logam Fe muncul dengan kehadiran puncak pada ș 360 . Sementara itu, uji kemampuan serapan karbon aktif dilakukan menggunakan SSA. Hasil uji SSA menunjukkan bahwa persentase serapan maksimum pada sampel air sumur bor, air sumur galian dan air sumur bor setelah dilakukan penyaringan berturut-turut adalah sebesar 97,94 %, 83,58 %, dan 56,18%.

PENGARUH SUHU AKTIVASI TERHADAP SIFAT FISIS DAN ELEKTROKIMIA ELEKTRODA SUPERKAPASITOR DARI LIMBAH DAUN AKASIA (Acacia mangium Wild) Kristin Natalia; Erman Taer
Komunikasi Fisika Indonesia Vol 16, No 2 (2019)
Publisher : Universitas Riau

The carbon electrode from acacia leaves (Acacia mangium Wild) for supercapacitor cell has been fabricated with physical activation temperature variations of 800oC, 850oC, and 900oC for the AK800, AK850 and AK900 samples respectively. Carbon electrodes were carbonized at a temperature of 600oC followed by physical activation in CO2 gas atmosphere. The KOH is use as an activating agent. The results of physical properties characterization show the higher physical activation temperature cause lower density data and smaller pore size of the particles. The EDX data shows an increasing in the carbon content. The best specific capacitance was found in AK900 as high as 76 g F-1 and the lowest specific capacitance is found in AK800 as high as 12,4 g F-1. Specific capacitance increases with increasing physical activation temperature.

PEMANFAATAN POTENSI TANDAN KOSONG KELAPASAWIT SEBAGAI KARBON AKTIF UNTUK PEMBERSIHAIR LIMBAH AKTIVITAS PENAMBANGAN EMAS Erman Taer; Widya Sinta Mustika; Sugianto '
Komunikasi Fisika Indonesia Vol 13, No 13 (2016)
Publisher : Universitas Riau

Pemanfaatan biomassa sebagai karbon aktif untuk aplikasi pembersih air limbah dapat dilakukan dengan kombinasi metode aktivasi dan karbonisasi. Karbon aktif dibuat dari tandan kosong kelapa sawit (TKKS) melalui beberapa tahap pengolahan tongkol menjadi pelet karbon, kemudian dilakukan proses karbonisasi pada suhu 800 0 C di lingkungan gas Nitrogen (N2). Aktivasi kimia menggunakan larutan KOH sebagai aktivator. Metode Scanning Electron Microscopy (SEM) digunakan untuk menganalisa struktur dan morfologi permukaan pelet karbon aktif TKKS. Sementara komposisi unsur kimia penyusun sampel yang dianalisa menggunakan Energy Dispersif X-Ray (EDX). Uji kemampuan serapan karbon aktif terhadap logam berat dilakukan menggunakan Spektrofotometer Serapan Atom (SSA). Dari spektrum EDX menunjukkan kehadiran unsur karbon (C) 79,79 %, sedangkan kontaminasi maksimum logam Fe 2,36 % dan Zn 0,61 %. Dari pengujian serapan logam berat berdasarkan SSA diperoleh hasil bahwa serapan optimum untuk Fe 78,52 % dan Zn 77,23 %, sehingga hasil penelitian menunjukkan bahwa pelet karbon aktif TKKS memiliki daya serap yang lebih tinggi terhadap logam berat besi (Fe).

PENGARUH WAKTU AKTIVASI TERHADAP SIFAT FISIS DAN ELEKTROKIMIA SEL SUPERKAPASITOR DARI SABUT PINANG Retno Handayani; Erman Taer
Komunikasi Fisika Indonesia Vol 16, No 2 (2019)
Publisher : Universitas Riau

The Carbon electrodes made from areca husk biomass materials have been successfully prepared and characterized. Preparation of carbon electrodes start with the pre-carbonization process, destruction of pre-carbon samples by using Ball Milling and sieving carbon powder for resulting particle size of <53 µm. Pre-carbonized powder is chemically activated using a 0.5 M KOH activator and continued by pellet forming by using Hydraulic Press. The carbonization process was carried out at a temperature of 600 oC using N2 gas followed by physical activation by using CO2 gas with a temperature of 900 oC for 1.5 hours, 2 hours and 2.5 hours. Physical properties analyzed include density, morphological structure and elemental content. The electrochemical properties were analyzed using the cyclic voltammetry (CV) method. The best density analysis result after carbonization-activation is 0.664 in SP-2.5 sample. The highest specific capacitance as high as 17.9 F / g found in the SP-1.5 sample.

SEL SURYA FOTOELEKTROKIMIA DENGAN MENGGUNAKAN NANOPARTIKEL PLATINUM SEBAGAI ELEKTRODA COUNTER GROWTH Iwantono '; Erman Taer; Rika Taslim; Lutfi Rindang Lestari
Komunikasi Fisika Indonesia Vol 11, No 8 (2014)
Publisher : Universitas Riau

Telah dilakukan fabrikasi dan pengukuran sel surya fotoelektrokimia dengan menggunakan nanopartikel platinumpada elektroda counter. Nanopartikel platinum ditumbuhkan di atas permukaan substrat padat (ITO) dengan metodein-situ growth (penumbuhan langsung) pada suhu 50 °C dengan variasi penumbuhan berulang (1 lapisan, 2 lapisan,dan 3 lapisan). Sel surya dibentuk seperti susunan sandwich yang menghubungkan antara elektroda counter(nanopartikel platinum) dan elektroda kerja (nanopartikel ZnO), dengan elektroda kerja diberi perlakuan variasikonsentrasi dan penambahan amoniak. Nanopartikel platinum tumbuh yang memberikan respon baik pada uji seladalah pada penumbuhan 1 lapisan. Hasil pengujian sel di bawah pencahayaan lampu halogen 100 watt, daerah aktifsel 1 cm x 1 cm memperlihatkan karakteristik I-V dengan parameter keluaran, tegangan rangkaian terbuka (V oc ) 274mV, arus rangkaian pendek (I sc ) 0,21 mA, fill factor (FF) 0,96 (96%), daya maksimum (Pmax) 0,056 mW untukvariasi konsentrasi. Sedangkan untuk variasi penambahan amoniak menghasilkan output tegangan rangkaian terbuka(V oc ) 119 mV, arus rangkaian pendek (I sc ) 0,1225 mA, fill factor (FF) 0,76 (76%), daya maksimum (P max ) 0,011 mW.

POTENSI DAUN JAHE MERAH SEBAGAI BAHAN DASAR PEMBUATAN ELEKTRODA SUPERKAPASITOR Erman Taer; Juwita Ade Putri; Novi Yanti; Apriwandi Apriwandi; Rika Taslim
Komunikasi Fisika Indonesia Vol 19, No 2 (2022)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.19.2.119-127

Red ginger leaf waste (Zingiber Officinale Var Rubrum) has been successfully processed as an active carbon base material for supercapacitor electrodes. The process of making carbon electrodes starts from the preparation of the original material, drying, refining, chemical activation, integrated pyrolysis and neutralization. The focus of this research is on the chemical activator ZnCl2 which is used with different concentrations of (0.1 and 0.5) M. Activated carbon powder is printed using a press to produce carbon in the form of solid coins of uniform size. The optimization of the carbon element in the sample is carried out through a pyrolysis process at high temperature with a one-stage integrated technique. Where, carbonization in the N2 gas environment is carried out starting from room temperature 30°C up to 600°C followed by physical activation until the high temperature reaches 800°C in CO2 gas environment. Characterization of activated carbon samples from red ginger leaves begins with determining the amount of shrinkage that occurs in the pyrolysis process by measuring the mass, diameter and thickness of the carbon coins. Furthermore, the electrochemical properties were tested using two methods, namely cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) in a symmetrical two-electrode system. The electrochemical characterization was carried out under the influence of an aqueous electrolyte of 1M KOH and 1M Na2SO4 at a low potential window of 0-1 V. The optimum conditions of electrochemical properties were found in the red ginger leaf activated carbon sample with a ZnCl2 activator concentration of 0.5M for the electrolyte. KOH with a specific capacitance value of 115.9 F/g. while for electrolyte Na2SO4 found in ZnCl2 activator 0.1M with a value of 72 F/g. Through these results, red ginger leaves are known to have great potential as a base material for activated carbon electrodes to improve the performance of supercapacitors.

SINTESIS DAN KARAKTERISASI NANOPARTIKEL OKSIDA BESI MENGGUNAKAN METODE BALL MILLING DAN KOPRESIPITASI Riduan Alvinsen Sirait; Salomo Salomo; Juandi Muhammad; Erman Taer
Komunikasi Fisika Indonesia Vol 19, No 2 (2022)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.19.2.91-98

This Research has carried out on natural sand originating from the Rokan river, Riau Province by converting it into magnetic iron oxide nanoparticles to determine changes in magnetic properties and particle size. Natural sand samples of the Rokan river were separated between magnetic and non-magnetic particles using an iron sand separator (ISS). ISS products are further synthesized using ball milling and coprecipitation methods. 70-hour ball milling products, coprecipitation without ball milling and coprecipitation with 70-hour ball milling are then given NdFeB (neodymium iron boron) magnets to clean impurities containing non-magnetic elements. The results of this study showed that the highest magnetic acceptability value was obtained in coprecipitation products with ball milling, which was 12.9 × 10-2. This is because coprecipitation products have an abundant content of chemicals in the form of magnetic elements. Based on the results of chemical composition testing using X-ray flourescence (XRF) it was found that in coprecipitation products with ball milling there was 64.504% iron (Fe) content, while 70-hour ball milling products and coprecipitation without ball milling the percentage of Fe protection was 15.023% and 54.152%, respectively. Based on the results of the identification of the chemical composition in the sample, coprecipitation products with 70-hour ball milling have high magnetic induction values and magnetic suseptibility caused by the magnetic content in products such as Fe which are very high and non-magnetic content is very low such as Si compared to 70-hour ball milling products and coprecipitation products without ball milling.

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 Edy Saputra Eko Nur Arif Erwin Amiruddin Erwin Erwin Eva Wahyuni Harahap 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 Novi Yanti Nur Akmal Nursyafni, Nursyafni Nursyaputri, Wan Mery 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

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