ENP Engineering Science Journal最新文献_第2页

Behavior of Materials in the Presence of Particles Additive Technique: A Review 颗粒存在下材料的行为研究进展

ENP Engineering Science Journal Pub Date : 2023-07-20 DOI: 10.53907/enpesj.v3i1.122

Fares Mohammed Laid Rekbi

引用次数: 1

Goethite Nanofibers /CNTs based Nanocomposites Synthesized by Free-Template Hydrothermal Method and their Physico-Chemical Properties for Energy Storage Application 自由模板水热法合成针铁矿纳米纤维/碳纳米管纳米复合材料及其储能应用的理化性质

ENP Engineering Science Journal Pub Date : 2023-07-20 DOI: 10.53907/enpesj.v3i1.159

Sara Djelamda, F. Djefaflia, A. Harat, A. Nait-Merzoug, D. Momodu, N. Manyala, M. Guerioune, O. Guellati

{"title":"Goethite Nanofibers /CNTs based Nanocomposites Synthesized by Free-Template Hydrothermal Method and their Physico-Chemical Properties for Energy Storage Application","authors":"Sara Djelamda, F. Djefaflia, A. Harat, A. Nait-Merzoug, D. Momodu, N. Manyala, M. Guerioune, O. Guellati","doi":"10.53907/enpesj.v3i1.159","DOIUrl":"https://doi.org/10.53907/enpesj.v3i1.159","url":null,"abstract":"In this investigation, we report the synthesis of Goethite-NFs/CNTs nanocomposites using hydrothermal method at optimized growth condition. These nanostructured products have been characterized in order to identify their physico-chemical properties by different techniques, such as X-Ray Diffraction (XRD), Raman Spectroscopy, High Resolution Scanning Electron Microscopy (FESEM), Thermal analysis (TGA/DTA) and UV- Vis Spectroscopy. The obtained Goethite nanofibers (NFs) have shown structured triangular base nanofibers with diameter in the range [181 - 363 nm]. Using nested and twisted CNTs (MWNTs type) but fairly homogeneous in diameter around 48 nm, the formation of an assembly of two forms (MWNTs and iron oxide Nanofibers) in nanocomposite configuration confirms the significant improvement of their physico-chemical properties, like the increase in their electrical conductivity proven by their obtained gap energy Eg from 3.12 to 2.50 eV. Consequently, the reached results prove clearly that this kind of iron oxide-NFs/MWNTs based nanocomposites can be excellent candidate as electroactive nanomaterials for energy storage application.","PeriodicalId":200690,"journal":{"name":"ENP Engineering Science Journal","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128572309","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}

引用次数: 1

Electrochemical Measurements of Ni / Graphene based Nanohybrids for Electrochemical Energy Storage “Supercapacitors” 用于电化学储能“超级电容器”的镍/石墨烯纳米杂化材料的电化学测量

ENP Engineering Science Journal Pub Date : 2023-07-20 DOI: 10.53907/enpesj.v3i1.158

Ikram Djebablia, O. Guellati, Naima Habib, A. Harat, F. Djefaflia, A. Nait-Merzoug, I. Janowska, M. Guerioune

{"title":"Electrochemical Measurements of Ni / Graphene based Nanohybrids for Electrochemical Energy Storage “Supercapacitors”","authors":"Ikram Djebablia, O. Guellati, Naima Habib, A. Harat, F. Djefaflia, A. Nait-Merzoug, I. Janowska, M. Guerioune","doi":"10.53907/enpesj.v3i1.158","DOIUrl":"https://doi.org/10.53907/enpesj.v3i1.158","url":null,"abstract":"Given the issues related to the use of fossil fuels and water pollution, the development and the application of new smart nanomaterials for supercapacitors and biosensors has become a vital issue for human and industrial societies. Therefore, nanotechnology has given more interest to these areas via micro/nanosystems or nanohybrids characterized by interesting composition, significant porosity and texture at nanoscale. In this work, we have produced electroactive nanohybrids based on in-situ Ni mono-hydroxide few layers Graphene oxide \"GO\" using a simple and low cost hydrothermal technique under well-studied thermodynamic conditions (120 and 180 °C growth temperature), for performant supercapacitor devices. We have carried out the structural, morphological, textural and optical characterization of these products and consequently we have specified the relationship between their physico-chemical characteristics and their electrochemical properties for ulterior application. Thus, we have carried out various electrochemical measurements through Cyclic Voltammetry tests and we have marked the important electrochemical properties of these Ni/Graphene nanohybrids in two NaOH electrolyte concentrations (0.1 and 1 M) in order to improve the performance of supercapacitors, which have become a socio-economic issue with this nanotechnological development. Consequently, these obtained Ni/Graphene nanohybrids have shown a very interesting electrochemical results with specific capacities 1863 and 253 F.g-1 for the case of nanohybrid obtained at 6h/120°C in NaOH aqueous electrolyte with two different concentrations (1 and 0.1M), respectively. However, for a fixed electrolyte concentration of 1M NaOH, both nanohybrids obtained at 120 and 180°C gave specific capacity values around 1863 and 2981 F.g-1, respectively.","PeriodicalId":200690,"journal":{"name":"ENP Engineering Science Journal","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123268769","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}

引用次数: 1

Magnetic properties and Structural characterization of nanocrystalline Fe-20%A (Ni, Co and Si) alloys powders synthesized by mechanical alloying process 机械合金化法制备Fe-20%A (Ni, Co, Si)纳米晶合金粉末的磁性能及结构表征

ENP Engineering Science Journal Pub Date : 2023-07-20 DOI: 10.53907/enpesj.v3i1.129

A. Younes, A. Abada, A. Bouamer, R. Amraoui

{"title":"Magnetic properties and Structural characterization of nanocrystalline Fe-20%A (Ni, Co and Si) alloys powders synthesized by mechanical alloying process","authors":"A. Younes, A. Abada, A. Bouamer, R. Amraoui","doi":"10.53907/enpesj.v3i1.129","DOIUrl":"https://doi.org/10.53907/enpesj.v3i1.129","url":null,"abstract":"This study focuses on the preparation and characterization of nanocrystalline Fe-A (Ni, Co, and Si) alloy powders using mechanical alloying technique with Retsch PM 400 high energy planetary ball mill. The evolution of the phases and magnetic properties of the powders are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and vibrating sample magnetometer (VSM) as a function of grinding time. The XRD results indicate that after 20 hours of milling, the FeNi, FeCo, and FeSi phases are completely formed. The lattice deformation of FeSi alloy is 0.7%, and the grain size decreases to 17 nm, 13.5 nm, and 10 nm for FeNi, FeCo, and FeSi, respectively. SEM observations of the powder morphologies at different stages of alloy formation are also conducted. Moreover, elemental maps of Fe, Ni, Co, and Si obtained by EDS experiments confirme the XRD results on the evolution of the alloy formation. Finally, the VSM results showed that the magnetic properties of FeNi, FeCo, and FeSi alloy nanoparticles are influenced by the composition, size, and morphology of the particles. Overall, this study provides valuable insights into the preparation and characterization of nanocrystalline Fe-A (Ni, Co, and Si) alloy powders, which may have potential applications in various fields.","PeriodicalId":200690,"journal":{"name":"ENP Engineering Science Journal","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127815313","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}

引用次数: 1

Physico-Chemical Properties of Three Synthesized Carbonaceous Nanomaterials (CNTs, GO, Biochar) for Perspective Application: Water / Soil Treatment and Energy Storage 三种合成碳质纳米材料(碳纳米管、氧化石墨烯、生物炭)的物理化学性质及其在水/土壤处理和储能方面的应用前景

ENP Engineering Science Journal Pub Date : 2023-07-20 DOI: 10.53907/enpesj.v3i1.160

Hanene Araissia, O. Guellati, F. Abbaci, A. Harat, Jamal El-Haskouri, D. Bégin, M. Guerioune, A. Nait-Merzoug

{"title":"Physico-Chemical Properties of Three Synthesized Carbonaceous Nanomaterials (CNTs, GO, Biochar) for Perspective Application: Water / Soil Treatment and Energy Storage","authors":"Hanene Araissia, O. Guellati, F. Abbaci, A. Harat, Jamal El-Haskouri, D. Bégin, M. Guerioune, A. Nait-Merzoug","doi":"10.53907/enpesj.v3i1.160","DOIUrl":"https://doi.org/10.53907/enpesj.v3i1.160","url":null,"abstract":"Nanotechnology has a more than important role in deducing the materials’ structure, especially carbon-based nanomaterials, including determining their properties and consequently their application field, such as: energy storage, environmental protection, biosensing and soil treatment. In this investigation, we report a comparison of three kinds of nanostructured carbon based smart nanomaterials synthesized at different dimension (1D, 2D and 3D) using physico-chemical growth processes. These carbonaceous products have been characterized in order to identify their attractive properties using different techniques, such as XRD, FT-IR, TGA/DTA, FESEM microscopy, Raman and XSP spectroscopy. These obtained nanostructured carbon have shown structural forms in the case of MWNTs and graphene type having 1D and 2D configuration, respectively, as well as an amorphous form in the case of biochar having 3D porous configuration which contains less cohesive bonds than graphene and MWNTs. These two structured ones have a much more solid and cohesive structure thanks to the strength of their carbon bonds and their graphitization rate is proved from their Raman and XPS-C1s analysis spectra. Moreover, they have shown very interesting characteristics especially their specific surface area in the range 150-2400 m2/g and functional groups; which open up a wide field of application especially environmental protection and biosensing.","PeriodicalId":200690,"journal":{"name":"ENP Engineering Science Journal","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116864955","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}

引用次数: 1

Hybrid materials based on Fe2O3/metal-oxide reinforced polyaniline: Synthesis, characterization and their electrochemical properties Fe2O3/金属氧化物增强聚苯胺杂化材料的合成、表征及其电化学性能

ENP Engineering Science Journal Pub Date : 2023-07-20 DOI: 10.53907/enpesj.v3i1.181

F. Z. Zeggai, Ilyes Otmane, Hafida Zerigui, R. Chebout, K. Bacharı

引用次数: 1

Editorial for Special Issue ‘’Nanotechnology Engineering’’ 《纳米技术工程》特刊社论

ENP Engineering Science Journal Pub Date : 2023-07-20 DOI: 10.53907/enpesj.v3i1.221

A. Bousseksou, J. Sauvage

引用次数: 0

Optoelectronic and Thermoelectric Properties of the Tetragonal Structure of the Halide Perovskite Material RbSeBr3 used for low-cost Photovoltaic 用于低成本光伏的卤化物钙钛矿材料RbSeBr3的四方结构的光电和热电性质

ENP Engineering Science Journal Pub Date : 2023-07-20 DOI: 10.53907/enpesj.v3i1.172

Rabah Mehyaoui, K. Benyahia

引用次数: 1

A review of Stall Delay Models and their Application on Hybrid Methods 失速延迟模型及其在混合方法中的应用综述

ENP Engineering Science Journal Pub Date : 2022-12-28 DOI: 10.53907/enpesj.v2i2.65

M. N. Hamlaoui, A. Smaili, H. Fellouah

引用次数: 0

Production of hydrogen and carbon nanofilaments using a novel reactor configuration: hydrodynamic study and experimental results 采用新型反应器结构生产氢和碳纳米丝:流体动力学研究和实验结果

ENP Engineering Science Journal Pub Date : 2022-12-28 DOI: 10.53907/enpesj.v2i2.115

Abir Azara, J. Blanchard, F. Mohellebi, E. Benyoussef, F. Gitzhofer, N. Abatzoglou

引用次数: 11