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All Journal International Journal of Applied Power Engineering (IJAPE) Bulletin of Electrical Engineering and Informatics Elkawnie Science and Technology Indonesia Journal of Applied Geospatial Information Jurnal Penelitian Sains INDONESIAN JOURNAL OF APPLIED PHYSICS Indonesian Journal of Chemistry Eksakta : Berkala Ilmiah Bidang MIPA Hydrogen: Jurnal Kependidikan Kimia Journal of Technomaterial Physics International Journal of Social Service and Research Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Jurnal Rekayasa Energi Journal of Computation Physics and Earth Science
Syahrul Humaidi, Syahrul
Department Of Physics, Faculty Of Mathematics And Natural Sciences – Universitas Sumatera Utara, Medan
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Journal : Journal of Technomaterial Physics

 1 
Preparation and Characterization of Conductive Plastics Using Cassava Peel Waste and Addition of CuSO4 Humaidi, Syahrul
Journal of Technomaterial Physics Vol. 2 No. 1 (2020): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v2i1.5272

Abstract

This study investigated the characteristics of a conductive plastic based on root starch and CuSO4 filler. The mixture variation was (95:5)%; (90:10)%; (85:15)%; (80:20)% and (75:25)%. Glycerol is used to change the material as desired (plasticizer) which is called a plasticizer. The method used in the manufacture of this material is melt intercalation. Mechanical testing includes tensile strength (tensile strength) and elongation at break. Thermal testing was done using DTA (Differential Thermal Analysis) and material conductivity testing. The characterization results showed that the optimum starch composition: CuSO4 (75:25)% had a conductivity value of 7.3 x 10-2S.m-1, a thermal test value of 410ºC. The optimum tensile strength value occurs in the composition (80:20)% with a value of 4.606 MPa
Synthesis and Electrochemical Characterization of Sodium-Ion Battery Anode Carbon Biomassa Based on Sunflower Seed Husk (Helianthus annuus) Simanjuntak, Renaldo; Dinda Amilia; Syahrul Humaidi; Achmad Subhan
Journal of Technomaterial Physics Vol. 5 No. 2 (2023): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v5i2.12394

Abstract

This study aimed to synthesize materials from the carbon biomass of sunflower seed husk (Helianthus Annuus) for sodium ion battery anode. A simple carbonization process was carried out by roasting. The chemical activation process was conducted by adding KOH as much as 4M in 100 mL water solution for 20 hours. Then drying was done in the oven at a temperature of 100ºC for 20 hours, and then continued with the sintering process at a temperature of 900ºC for 2 hours. The sintered results were washed and hydrothermal for 20 hours at 200ºC with 4 mL H2O2 and 1 mL EG in 50 mL Teflon. The resulting acid degree was neutralized (pH ~ 7) with distilled water and then dried at 100ºC for 20 hours. The hydrothermal powder was pulverized using a mortar and pestle and then sieved on a 325 mesh sieve. Anode sheets were prepared by mixing active ingredients: PVDF: Super-P with a composition of 85: 10: 5 by adding 2 ml of DMAC solvent. Electrochemical characterization testing was carried out to see the resulting performance—the results obtained from EIS, CV, and CD show that commercial hard carbon is better.
XRD Analysis of Li4Ti5O12 with Post Heat Treatment for Lithium-ion Capacitor (LIC) Applications Humaidi, Syahrul
Journal of Technomaterial Physics Vol. 4 No. 1 (2022): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v4i1.8154

Abstract

Characterization of XRD-analysis on Li4Ti5O12 with post heat treatment for applications Lithium-ion Capacitor (LIC) has been conducted. The powder method was used in the analysis, whereas the samples were prepared using the sol-gel method. The anode material Li4Ti5O12 precursor was sintered at 850°C for 4 hours and followed by heat-treatment at 600oC for 3 hours. Characterization of structural (XRD analysis) was applied to determine the formation of Li4Ti5O12 phase. The results of the characterization were formed Lithium titanate (Li4Ti5O12) and rutile phase (TiO2) with crystallite size on LTO I of 82.52 nm and LTO II of 92.07 nm. Overall, post heat treatment of anode Li4Ti5O12 succeeded in improving the quality and electrochemical performance for Lithium-ion Capacitor (LIC) application.
Manufacture of Solid Polymer Electrolyte (SPE) Based on PVDF HFP-LiBOB Humaidi, Syahrul; Aldira, Syarah; Lestariningsih, Titik
Journal of Technomaterial Physics Vol. 4 No. 2 (2022): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v4i2.8250

Abstract

This research aimed to synthesize solid polymer electrolyte (SPE) with and without Polyethylene oxide (PEO) using the solution cast technique. The liquid electrolyte of LiBOB was synthesized with the immersing method. The chemicals used are PVDF-HFP (0.75 g), TiO2(0.05 g), PEO(0.25 g), DMAC, EC, EMC, and LiBOB(1.55 g). The morphology of the surface membrane was characterized using SEM. The results of the SEM analysis shows that the addition of PEO plays a role in forming the SPE membrane because the addition of PEO greatly affects the density of the SPE sheet.
Characterization of CuCrO2 Material Produced Using Sol-Gel Method Delviya Amisha; Humaidi, Syahrul; Imaddudin, Agung
Journal of Technomaterial Physics Vol. 5 No. 1 (2023): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v5i1.9910

Abstract

This study aimed to analyze CuCrO2 material produced using the sol-gel method. The characterization used is X-ray Diffraction (XRD) and Scanning Electron Micoscope-Energy Dispersive Spectroscopy (SEM-EDS). The sample was made by weighing the raw material and measuring the solution with a measuring cup according to stoichiometric calculations, then dissolving it, burning it, grinding it, calcining it, sintering it, forming it into pellets, and re-sintering it. The XRD results show that the main phase of the sample is CuCrO2 and impurities (CuCr2O4). From the SEM results, the average particle size is 155.948µm.
Manufacture of Lithium Lanthanum Titanate Active Material as a Lithium-Ion Capacitor Anode Using Solid-State Reaction Methods Liza, Erliza Pratiwi; Humaidi, Syahrul; Rifai, Abdulloh
Journal of Technomaterial Physics Vol. 5 No. 1 (2023): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v5i1.9919

Abstract

Lithium lanthanum titanate, Li0.2La0.6TiO3 (LLTO) was synthesized for the manufacture of lithium-ion capacitors using the solid-state reaction method. in this study, the active ingredients were synthesized using variations of lithium and lanthanum as raw materials. The raw materials used are Li2CO3, La2O3, and TiO2. The three raw materials were mixed according to the stoichiometric calculations then added 13 ml of Ethanol solution so that the raw materials were mixed evenly during the milling process for 5 hours. Sintering was carried out for 8 hours at 800oC and then at 1150oC for 12 hours. The sintered powder was ground using a mortar and pastel and then sieved on a 400 mesh sieve. The anode sheet was made by mixing the active ingredients: PVDF: Super-P with a composition of 85:10:5 by adding 3 ml of DMAC solvents. The characterization test was carried out using XRD while the electrochemical test used CV and EIS. The XRD result shows the formation of the main phase and the impurity phase with the main phase percent of 96.4%. From the results of electrochemical testing, the percentage of capacity is 73%.
Synthesis and Characterization of Cu-Cr-O Phase with H2SO4 Solvent Using Sol-Gel Method Rangkuti, Yusridah; Humaidi, Syahrul; Maulid, Nurul; Imaduddin, Agung; Herbirowo, Satrio; Nugraha, Heri; Darsono, Nono
Journal of Technomaterial Physics Vol. 5 No. 1 (2023): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v5i1.10897

Abstract

This study used the cast-in-situ method to make concrete based on rice husk ash and pineapple leaf fiber. Rice husk ash and pineapple leaf fiber were used as the cement substitutes with different variations: 0%, 2.5%, 5%, and 7.5%. Parameters examined in this study included density, porosity, water absorption, flexural strength, and compressive strength using a universal testing machine and Material Testing equipment, which were then analyzed morphologically using SEM-EDX. The result showed a density of  2.510 × 103 − 2.451 × 103 kg/m3, porosity of 7.64 – 5.73 %, water absorption of 0.296 % – 0.243 %, compressive strength of 23.66 – 16.45 MPa, flexural Strength of 33.3 – 25.3 MPa. The morphological analysis showed that the rice husk ash and pineapple leaf fiber addition was responsible for the concrete's porous structure in this study has a porous structure. The EDX analysis result exhibited a high carbon percentage.
Electrochemical Performance of Na2Mn3O7 as a Cathode Material in Sodium-Ion Batteries Using the Precipitation Method with Ethylene Glycol Chelating Agent Subhan, Achmad; Sulaiman, Muhammad Thariq As; Humaidi, Syahrul
Journal of Technomaterial Physics Vol. 6 No. 1 (2024): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v6i1.13867

Abstract

Tests were conducted on Na2Mn3O7 as a cathode material in sodium-ion batteries, aiming to synthesize Na2Mn3O7 precursor using commercial and synthetic MnCO3 variants. Sample A utilized commercial MnCO3, while sample B utilized MnCO3 synthesized from MnSO4.1H2O and Na2CO3. Both variants were mixed with Na2CO3 to form Na2Mn3O7 precursor, which was then sintered at 700°C for 4 hours, ground, and sieved. A slurry was prepared by mixing the active materials PVDF: Super P in an 8:1:1 ratio with 3.5 mL of NMP. Sample A exhibited a conductivity of 3.4706×10-7 S/cm, and sample B had a conductivity of 2.7304×10-7 S/cm in the EIS results. In the CV test, sample A showed oxidation and reduction peaks at 2.77 V and 1.62 V, respectively, while sample B had peaks at 2.842 V and1.716 V. In the CD test, sample A reached maximum and minimum peaks of 4.3 V and 1.4 V, while sample B reached peaks of 4.2 V and 1.3 V. Sample A exhibited a capacity of 117.02 mAh/g on charge and 93.47 mAh/g on discharge, whereas sample B showed capacities of 79.17 mAh/g on charge and 65.79 mAh/g on discharge. These results indicate the superior performance of sample A over sample B.
Distance Measurement of Low Reflectance Objects Using Indirect Time of Flight LiDAR Agitta Rianaris; Nofriha Rahmayani Siregar; Hari Pratomo; Surip Kartolo; Syahrul Humaidi; Dwi Hanto
Journal of Technomaterial Physics Vol. 6 No. 2 (2024): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v6i2.16988

Abstract

Remote sensing is a system that enables data collection without physical contact with the object or its environment. Light detection and Ranging (LiDAR) technology is increasingly important in various industries, particularly developing autonomous vehicles. In autonomous vehicle applications, LiDAR is expected to detect multiple objects from high and low reflectance to make it easy to recognize its surrounding area. We have designed a biaxial LiDAR range finder system based on indirect time of flight technology, which has been tested to measure the distance of an object with high reflectance. In this work, we employ the system to measure the distance of an object with low reflectance from High Impact PolySterene (HIPS). The results show that the systems can measure objects from HIPS up to 33 m, which is lower than when the system measures an object with high reflectance.
Co-Authors Abdulmajid, Muhammad W. Achmad Subhan Achmad Subhan Aditia Warman Agitta Rianaris Agung Imaduddin, Agung Aldira, Syarah Alfonsius Chrisandy Pratama Siregar Aliakbar, Muhammad Andrean Simanjuntak Andrean V.H Simanjuntak Armelia Yuniani Averroes Fazlur Rahman Piliang Bonardo, Doli Dadan Ramdan Delviya Amisha Diana Alemin Barus Diana, Linda Diana, Linda E. Dinda Amilia Duma, Tulus Na Dwi Hanto Endah P. Sari Erna Frida Estananto Fathi Marzuqi Fiqri, Miftahul Fynnisa Zebua Hari Pratomo Heri Nugraha Herri Trisna Frianto, Herri Trisna Hibatullah, Khindi Aufa ilham junaedi Imaddudin, Agung Kerista Sebayang Liza, Erliza Pratiwi Maghfirah, Awan Manurung, Ellya Veronika Iriani Manurung, Royston Marhaposan Situmorang Marhaposan Situmorang, Marhaposan Martha Rianna Marzuki Sinambela Masno Ginting Maulid, Nurul Moraidah Hasanah Muhammad Ali Akbar, Muhammad Ali Naibaho, Marzuki Naibaho, Yeni P. S. Naibaho, Yeni P.S Nofriha Rahmayani Siregar Nono Darsono, Nono Novita Novita Nurdin Bukit Paramita, Endah Perdinan Sinuhaji Perdinand Sinuhaji Rahmadsyah Rahmadsyah Ramlan, H. Rangkuti, Yusridah Resa Idha Rifai, Abdulloh Rizki Fadhillah Pratama Putra Saharman Gea Sally Irvina Ritonga Santoso, Bayu Santy Meilisa Manurung Saragih, Dearninta A. P. Saragih, Immanuel Jhonson A. Satrio Herbirowo, Satrio Sihotang, Bertalina Simanjuntak, Andrean V. H. Simanjuntak, Renaldo Sinaga, Nora Valencia Siregar, Shinta Marito Sri Wahyuni Suharlan, Didy Sulaiman, Muhammad Thariq As Surip Kartolo Susilawati Susilawati Susilawati Tarigan, Kerista Theresia Grefyolin Simbolon Timbangen Sembiring Titik Lestariningsih, Titik Tulus Ikhsan Nasution Umar Muksin Yahya Darmawan Yahya Darmawan Yahya Darmawan Yoshephin Romania Yulianta Siregar Yusran Asnawi Zuriah Sitorus