Pub Date : 2024-05-06DOI: 10.61326/jaasci.v3i1.127
D. Avcı, H. Yetiş, F. Karaboğa, I. Belenli
In this study, we have successfully produced a Fe-sheathed 6+1 multifilament wire using Cu/Nb/MgB2 monocore wires. The mono filament wire was prepared using Mg+2B powder mixture by powder-in-tube method without any intermediate heat treatment. The powder mixture of the amorphous nano boron (PVZ Nano Boron, purity of 98.5%, particle sizes < 250 nm) and high purity Mg powder (PVZ Mg, purity of 99%, particle size 74µm) were used. The multifilament wire was produced using groove rolling and cold drawing machines. The geometrical form of the filaments was examined using wire pieces taken from the wire at different steps throughout the production process. Finally, the multifilament wires produced in two different diameters of 1.02 mm and 0.82 mm were investigated in terms of filament uniformity, crack formation, surface roughness, and electrical transport properties. The structural examination was done on Nb filaments after the Fe and Cu sheaths were etched using HCl and HNO3 solution. The I – V measurements of the multifilament wires heat treated at 650 °C for 15, 30, 45, 60, and 240 minutes, and 700 °C for 60 minutes were carried out for the applied current up to 1 A at 25 K under various external magnetic field.
在这项研究中，我们利用铜/铌/镁硼单芯线成功制备出了铁护套 6+1 多丝线材。单丝是用管内粉末法制备 Mg+2B 混合粉末的，没有经过任何中间热处理。使用的粉末混合物包括无定形纳米硼（PVZ 纳米硼，纯度 98.5%，粒径小于 250 纳米）和高纯度镁粉（PVZ 镁，纯度 99%，粒径 74 微米）。多丝金属丝是通过轧槽机和冷拔机生产出来的。在整个生产过程的不同阶段，使用从金属丝上截取的金属丝片对金属丝的几何形状进行了检测。最后，研究了以 1.02 毫米和 0.82 毫米两种不同直径生产的多丝金属丝的长丝均匀性、裂纹形成、表面粗糙度和电气传输特性。在使用 HCl 和 HNO3 溶液蚀刻铁和铜外鞘后，对铌丝进行了结构检查。在不同的外磁场条件下，将多丝线材在 650 °C 下热处理 15、30、45、60 和 240 分钟，以及在 700 °C 下热处理 60 分钟，并在 25 K 下施加最大 1 A 的电流，对其进行了 I - V 测量。
{"title":"The Structural Examination of Fe/(Cu/Nb)/MgB2 Multifilament Wires During Cold Forming Process","authors":"D. Avcı, H. Yetiş, F. Karaboğa, I. Belenli","doi":"10.61326/jaasci.v3i1.127","DOIUrl":"https://doi.org/10.61326/jaasci.v3i1.127","url":null,"abstract":"In this study, we have successfully produced a Fe-sheathed 6+1 multifilament wire using Cu/Nb/MgB2 monocore wires. The mono filament wire was prepared using Mg+2B powder mixture by powder-in-tube method without any intermediate heat treatment. The powder mixture of the amorphous nano boron (PVZ Nano Boron, purity of 98.5%, particle sizes < 250 nm) and high purity Mg powder (PVZ Mg, purity of 99%, particle size 74µm) were used. The multifilament wire was produced using groove rolling and cold drawing machines. The geometrical form of the filaments was examined using wire pieces taken from the wire at different steps throughout the production process. Finally, the multifilament wires produced in two different diameters of 1.02 mm and 0.82 mm were investigated in terms of filament uniformity, crack formation, surface roughness, and electrical transport properties. The structural examination was done on Nb filaments after the Fe and Cu sheaths were etched using HCl and HNO3 solution. The I – V measurements of the multifilament wires heat treated at 650 °C for 15, 30, 45, 60, and 240 minutes, and 700 °C for 60 minutes were carried out for the applied current up to 1 A at 25 K under various external magnetic field.\u0000","PeriodicalId":507374,"journal":{"name":"Journal of Advanced Applied Sciences","volume":"58 41","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141009388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-06DOI: 10.61326/jaasci.v3i1.108
Sanam Movazzafgharehbagh, Faruk Karadağ
The aim of this work is to design and fabricate a type of sensor based on Metamaterials. This structure determines the purity of Methanol and Ethanol mixture in the water by using the Octagonal form of a resonator and sample holder. The proposed structure has been employed in the 8-12 GHZ frequency band. The important thing in the work is the changes of the waveform at the resonance frequency. The output waveform of materials (reflection coefficient S11 or transmission coefficient S12) must be changed in the liner figure by considering the dielectric coefficient. We use copper for the metal layer and resonator and Isola IS680 (3.2DK) (lossy) for substrate layer. We simulate one unit cell of this Meta-material sensor by CST microwave software and then achieve the results and evaluate them. Both the numerical and experimental tests, give the same outcomes and results and they will be in good agreement with each other. The proposed structure can be used in many applications where purity and determining of some materials might be necessary.
{"title":"Purity Detection of Some Liquids by Using Reflection Values Based on Metamaterial","authors":"Sanam Movazzafgharehbagh, Faruk Karadağ","doi":"10.61326/jaasci.v3i1.108","DOIUrl":"https://doi.org/10.61326/jaasci.v3i1.108","url":null,"abstract":"The aim of this work is to design and fabricate a type of sensor based on Metamaterials. This structure determines the purity of Methanol and Ethanol mixture in the water by using the Octagonal form of a resonator and sample holder. The proposed structure has been employed in the 8-12 GHZ frequency band. The important thing in the work is the changes of the waveform at the resonance frequency. The output waveform of materials (reflection coefficient S11 or transmission coefficient S12) must be changed in the liner figure by considering the dielectric coefficient. We use copper for the metal layer and resonator and Isola IS680 (3.2DK) (lossy) for substrate layer. We simulate one unit cell of this Meta-material sensor by CST microwave software and then achieve the results and evaluate them. Both the numerical and experimental tests, give the same outcomes and results and they will be in good agreement with each other. The proposed structure can be used in many applications where purity and determining of some materials might be necessary.\u0000","PeriodicalId":507374,"journal":{"name":"Journal of Advanced Applied Sciences","volume":"4 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141011250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-06DOI: 10.61326/jaasci.v3i1.100
C. Parlak
A comprehensive investigation of the electronic and mechanical properties in the hexagonal BaB2 binary system using state of the art first-principles computational techniques is critical for an in-depth understanding of the fundamental properties unique to this binary system. In this context, we derived elastic constants using the metric-tensor formulation, which allowed us to find important mechanical properties such as Bulk Modulus, Shear Modulus, and Vickers's hardness which are fundamental mechanical quantities. Also, this research includes a detailed analysis of the electronic band structures and a study comparison of Fermi surface topologies. The charge density at the Fermi level (N(EF)), which is very important in superconductivity theories, was found to be 1.43 states/eV.uc. Furthermore, we have explored whether there exists a close relationship between these properties and the superconducting behavior of the BaB2 material. Nevertheless, our calculations unequivocally demonstrate that the information derived from electronic band structures and Fermi surfaces alone is insufficient for a comprehensive explanation of the superconductivity phenomenon observed in such materials.
{"title":"Theoretical Investigation of Mechanical and Electronic Properties of Hexagonal BaB2","authors":"C. Parlak","doi":"10.61326/jaasci.v3i1.100","DOIUrl":"https://doi.org/10.61326/jaasci.v3i1.100","url":null,"abstract":"A comprehensive investigation of the electronic and mechanical properties in the hexagonal BaB2 binary system using state of the art first-principles computational techniques is critical for an in-depth understanding of the fundamental properties unique to this binary system. In this context, we derived elastic constants using the metric-tensor formulation, which allowed us to find important mechanical properties such as Bulk Modulus, Shear Modulus, and Vickers's hardness which are fundamental mechanical quantities. Also, this research includes a detailed analysis of the electronic band structures and a study comparison of Fermi surface topologies. The charge density at the Fermi level (N(EF)), which is very important in superconductivity theories, was found to be 1.43 states/eV.uc. Furthermore, we have explored whether there exists a close relationship between these properties and the superconducting behavior of the BaB2 material. Nevertheless, our calculations unequivocally demonstrate that the information derived from electronic band structures and Fermi surfaces alone is insufficient for a comprehensive explanation of the superconductivity phenomenon observed in such materials.\u0000","PeriodicalId":507374,"journal":{"name":"Journal of Advanced Applied Sciences","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141007462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-18DOI: 10.61326/jaasci.v2i2.112
H. Büyükuslu
Nuclear reaction cross sections have a key role in nuclear radioisotope production research. It is also an important part of applied fields such as energy production and experimental nuclear studies. It has been the subject of theoretical studies such as elucidating the nuclear structure and preparing and testing nuclear reaction models. It has become a very useful tool, especially for determining nuclear optical model parameters. In this study differential cross sections were calculated for elastic and inelastic scattering of 14-15 MeV energy range deuterons from 14N, 16O and 27Al. Calculation were carried out with TALYS 1.96/2.0 nuclear reaction code. Calculations include determining the deuteron optical model that match the experimental data. The values calculated with theoretical models were compared with experimental data obtained from the literature. While such studies are important for testing nuclear reaction models, they are also important for encouraging the preparation of nuclear reaction codes.
{"title":"Deuteron Optical Model Calculations for Elastic and Inelastic Reactions on 14N, 16O, 27Al Target Nuclei","authors":"H. Büyükuslu","doi":"10.61326/jaasci.v2i2.112","DOIUrl":"https://doi.org/10.61326/jaasci.v2i2.112","url":null,"abstract":"Nuclear reaction cross sections have a key role in nuclear radioisotope production research. It is also an important part of applied fields such as energy production and experimental nuclear studies. It has been the subject of theoretical studies such as elucidating the nuclear structure and preparing and testing nuclear reaction models. It has become a very useful tool, especially for determining nuclear optical model parameters. In this study differential cross sections were calculated for elastic and inelastic scattering of 14-15 MeV energy range deuterons from 14N, 16O and 27Al. Calculation were carried out with TALYS 1.96/2.0 nuclear reaction code. Calculations include determining the deuteron optical model that match the experimental data. The values calculated with theoretical models were compared with experimental data obtained from the literature. While such studies are important for testing nuclear reaction models, they are also important for encouraging the preparation of nuclear reaction codes.","PeriodicalId":507374,"journal":{"name":"Journal of Advanced Applied Sciences","volume":"28 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-18DOI: 10.61326/jaasci.v2i2.103
I. Tapan, Fatma Kocak
Here, a new design will be introduced to detect radiation in the environment with high efficiency. The designed structure consists of placing ZnS–Si APD and PIN photodiodes at the ends of conventional crystals such as NaI(Tl) and CsI(Tl). Since ZnS is transparent to photons with wavelengths between 340 and 10000 nm, photons coming from the crystals are absorbed directly in the depletion region and generate primary particles. With an increase in the number of generated primary particles, a stronger and cleaner signal is obtained. In the simulation work, the light generated by 30 keV–3 MeV gamma rays in the crystals was obtained using the Geant4 simulation code. The single-particle Monte Carlo technique was used to calculate the photodiode output signal for the crystal emission spectrum. The simulation results showed that the crystals and ZnS–Si photodiode structures formed a good combination. The high quantum efficiency and low excess noise factor make the ZnS–Si structure an excellent choice for scintillating light detection.
{"title":"New Crystal Photodiode Combination for Environmental Radiation Measurement","authors":"I. Tapan, Fatma Kocak","doi":"10.61326/jaasci.v2i2.103","DOIUrl":"https://doi.org/10.61326/jaasci.v2i2.103","url":null,"abstract":"Here, a new design will be introduced to detect radiation in the environment with high efficiency. The designed structure consists of placing ZnS–Si APD and PIN photodiodes at the ends of conventional crystals such as NaI(Tl) and CsI(Tl). Since ZnS is transparent to photons with wavelengths between 340 and 10000 nm, photons coming from the crystals are absorbed directly in the depletion region and generate primary particles. With an increase in the number of generated primary particles, a stronger and cleaner signal is obtained. In the simulation work, the light generated by 30 keV–3 MeV gamma rays in the crystals was obtained using the Geant4 simulation code. The single-particle Monte Carlo technique was used to calculate the photodiode output signal for the crystal emission spectrum. The simulation results showed that the crystals and ZnS–Si photodiode structures formed a good combination. The high quantum efficiency and low excess noise factor make the ZnS–Si structure an excellent choice for scintillating light detection.","PeriodicalId":507374,"journal":{"name":"Journal of Advanced Applied Sciences","volume":"43 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139176218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-18DOI: 10.61326/jaasci.v2i2.109
Sanam Movazzafgharehbagh, Faruk Karadağ
In this study, some types of antennas and metamaterial structures have been designed and produced with the aim of determining and detecting ionized chlorine of sea sand in concrete. The first structure has a Loop-like resonator with the sample, the second structure has a Bowtie-shaped resonator with the sample and the third structure has double loop resonators on both sides of concrete samples also non-destructive method is applied for all structures. Different samples of concrete are produced with different proportions of ionized sea sand. Electrical properties of concrete samples for all structures are investigated in the frequency range of 1-9 GHz. The structures are designed in the CST Microwave Studio program. Also, the simulation study of the designed structures shows that the most important resonance frequency changes, considering the dielectric constant of concrete samples, for the Loop-like structure occur in the 1-8 GHz, Bowtie-shaped structure in 1-4 GHz and double Loop structure in 1-9 GHz of frequency band. The important point in this study is the changes of the waveform at the resonance frequency. The output waveform (reflection coefficient S11/ transmission coefficient S12) should change in linear form by considering the dielectric coefficient. We have used copper for the resonators and also the material with ℇ value of 3 as the substrate layers of the structures. We have simulated three types of designed structures with CST Microwave Software and then achieve the results and evaluate them. Both numerical and experimental tests have given approximately same results and are in good agreement with each other. These proposed structures can be used in many applications where it is necessary to determine the rate of ionized sea sand in cement-based composites such as concrete.
{"title":"Non-Destructive Testing Using Transmission Line-Based Microwave Sensors","authors":"Sanam Movazzafgharehbagh, Faruk Karadağ","doi":"10.61326/jaasci.v2i2.109","DOIUrl":"https://doi.org/10.61326/jaasci.v2i2.109","url":null,"abstract":"In this study, some types of antennas and metamaterial structures have been designed and produced with the aim of determining and detecting ionized chlorine of sea sand in concrete. The first structure has a Loop-like resonator with the sample, the second structure has a Bowtie-shaped resonator with the sample and the third structure has double loop resonators on both sides of concrete samples also non-destructive method is applied for all structures. Different samples of concrete are produced with different proportions of ionized sea sand. Electrical properties of concrete samples for all structures are investigated in the frequency range of 1-9 GHz. The structures are designed in the CST Microwave Studio program. Also, the simulation study of the designed structures shows that the most important resonance frequency changes, considering the dielectric constant of concrete samples, for the Loop-like structure occur in the 1-8 GHz, Bowtie-shaped structure in 1-4 GHz and double Loop structure in 1-9 GHz of frequency band. The important point in this study is the changes of the waveform at the resonance frequency. The output waveform (reflection coefficient S11/ transmission coefficient S12) should change in linear form by considering the dielectric coefficient. We have used copper for the resonators and also the material with ℇ value of 3 as the substrate layers of the structures. We have simulated three types of designed structures with CST Microwave Software and then achieve the results and evaluate them. Both numerical and experimental tests have given approximately same results and are in good agreement with each other. These proposed structures can be used in many applications where it is necessary to determine the rate of ionized sea sand in cement-based composites such as concrete.","PeriodicalId":507374,"journal":{"name":"Journal of Advanced Applied Sciences","volume":"472 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139173405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
High step-up DC-DC converters are used in many industrial applications Especially, renewable energy systems that have a low output voltage and high output current need DC-DC converters with high voltage gain to meet the requirements of the grid-connected systems for a high output voltage. This study is aimed to design an implementation of hardware of the high step-up DC-DC converter’s measurement board prototype for digital signal processing (DSP) TMS320F28335 development kits. The vital parameter to detect for high step-up application systems is a sampling output voltage. This sample of output voltage is produced by using the voltage transducer (LV 25-P) with hall effect sensor in this research. A signal conditioning circuit includes an operational amplifier featuring unity gain buffer for the protection ADC of the DSP and a low pass filter circuit. Therefore, the requirements of the ADC of EZDSP TMS320F28335 development kit can be met by using this voltage transducer sensor and the signal conditioning circuit.
{"title":"Design of Voltage Transducer for Digital Signal Processing Development Kit in Implementation of a High Step-up DC-DC Converter","authors":"Yavuz Koç","doi":"10.61326/jaasci.v2i2.99","DOIUrl":"https://doi.org/10.61326/jaasci.v2i2.99","url":null,"abstract":"High step-up DC-DC converters are used in many industrial applications Especially, renewable energy systems that have a low output voltage and high output current need DC-DC converters with high voltage gain to meet the requirements of the grid-connected systems for a high output voltage. This study is aimed to design an implementation of hardware of the high step-up DC-DC converter’s measurement board prototype for digital signal processing (DSP) TMS320F28335 development kits. The vital parameter to detect for high step-up application systems is a sampling output voltage. This sample of output voltage is produced by using the voltage transducer (LV 25-P) with hall effect sensor in this research. A signal conditioning circuit includes an operational amplifier featuring unity gain buffer for the protection ADC of the DSP and a low pass filter circuit. Therefore, the requirements of the ADC of EZDSP TMS320F28335 development kit can be met by using this voltage transducer sensor and the signal conditioning circuit.","PeriodicalId":507374,"journal":{"name":"Journal of Advanced Applied Sciences","volume":"45 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139174903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-18DOI: 10.61326/jaasci.v2i2.101
Gökhan Ekinci, Bünyamin Özkal, Nora Ali A. S. Al-Jawfi, S. Kazan
In this study, VO2 thin films were grown on SiO2 substrate using the PLD method. Then the grown VO2 thin films were subjected to heat treatments at different temperatures and times in the atmosphere environment. The structural properties of the heat-treated films were investigated using X-ray diffraction (XRD) technique and Raman spectroscopy techniques. The surface microstructures of these films were investigated by Scanning Electron Microscope (SEM) technique, and their optical properties and bond structures were investigated by Photoluminescence (PL) spectra and Fourier Transform Infrared Spectroscopy (FTIR) measurements, respectively. Especially XRD and Raman results revealed that heat treatments with high temperature values transformed the films into VO2 and V2O5 mixed-phase crystal structures. Due to the heat treatment carried out in the atmosphere and the high oxygen affinity of the vanadium metal, crystallization took place in both VO2 and V2O5 forms. In order to obtain homogeneous crystalline VO2 structures, heat treatments should be carried out for a long time in oxygen-limited environments.
{"title":"Investigation of Optical and Structural Properties of VO2 Thin Films by Thermal Treatment","authors":"Gökhan Ekinci, Bünyamin Özkal, Nora Ali A. S. Al-Jawfi, S. Kazan","doi":"10.61326/jaasci.v2i2.101","DOIUrl":"https://doi.org/10.61326/jaasci.v2i2.101","url":null,"abstract":"In this study, VO2 thin films were grown on SiO2 substrate using the PLD method. Then the grown VO2 thin films were subjected to heat treatments at different temperatures and times in the atmosphere environment. The structural properties of the heat-treated films were investigated using X-ray diffraction (XRD) technique and Raman spectroscopy techniques. The surface microstructures of these films were investigated by Scanning Electron Microscope (SEM) technique, and their optical properties and bond structures were investigated by Photoluminescence (PL) spectra and Fourier Transform Infrared Spectroscopy (FTIR) measurements, respectively. Especially XRD and Raman results revealed that heat treatments with high temperature values transformed the films into VO2 and V2O5 mixed-phase crystal structures. Due to the heat treatment carried out in the atmosphere and the high oxygen affinity of the vanadium metal, crystallization took place in both VO2 and V2O5 forms. In order to obtain homogeneous crystalline VO2 structures, heat treatments should be carried out for a long time in oxygen-limited environments.","PeriodicalId":507374,"journal":{"name":"Journal of Advanced Applied Sciences","volume":"42 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As the world’s population grows, the energy crisis is becoming an increasingly severe problem, driving the need for energy storage. This demand is a significant driver for innovation and development in the energy sector. Clean and sustainable energy research focuses on two areas: renewable resources and high-performance energy storage systems. Today’s energy systems provide large amounts of electricity generation, but the desired results cannot be achieved in the energy storage process. There is an urgent need for high-capacity and efficient energy storage devices. Supercapacitors are one of the most promising technologies for energy storage. They have competitive features such as high power density, excellent cycle stability, and short charge/discharge time. This study demonstrates the potential usage of NiSe2 in supercapacitor applications as cathode material. In an experimentally novel approach, NiSe2 on nickel foam was synthesized by a fast, simple, and inexpensive microwave-assisted method in the presence of selenium salt. In this route, nickel foam was employed as both nickel source and substrate. Furthermore, the electrochemical properties of the prepared NiSe2 cathodes were investigated in three electrodes system. As a result, NiSe2 obtained in 45 minutes delivers a high capacitance of 3.3 F/cm2 at a high current density of 5 mA/cm2.
{"title":"Synthesis of NiSe2 Materials Directly on Ni Foam using Microwave-Assisted Technique and Employing as Electrode Material in Supercapacitors","authors":"R. Taş, Ebru Köroğlu, Vedat Emin Ayaz","doi":"10.61326/jaasci.v2i2.98","DOIUrl":"https://doi.org/10.61326/jaasci.v2i2.98","url":null,"abstract":"As the world’s population grows, the energy crisis is becoming an increasingly severe problem, driving the need for energy storage. This demand is a significant driver for innovation and development in the energy sector. Clean and sustainable energy research focuses on two areas: renewable resources and high-performance energy storage systems. Today’s energy systems provide large amounts of electricity generation, but the desired results cannot be achieved in the energy storage process. There is an urgent need for high-capacity and efficient energy storage devices. Supercapacitors are one of the most promising technologies for energy storage. They have competitive features such as high power density, excellent cycle stability, and short charge/discharge time. This study demonstrates the potential usage of NiSe2 in supercapacitor applications as cathode material. In an experimentally novel approach, NiSe2 on nickel foam was synthesized by a fast, simple, and inexpensive microwave-assisted method in the presence of selenium salt. In this route, nickel foam was employed as both nickel source and substrate. Furthermore, the electrochemical properties of the prepared NiSe2 cathodes were investigated in three electrodes system. As a result, NiSe2 obtained in 45 minutes delivers a high capacitance of 3.3 F/cm2 at a high current density of 5 mA/cm2.","PeriodicalId":507374,"journal":{"name":"Journal of Advanced Applied Sciences","volume":"67 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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