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Synthesis and characterization of Co3O4/Ti3C2 MXene nanocomposite: Efficient catalyst for Oxygen Evolution Reaction Application Co3O4/Ti3C2 MXene 纳米复合材料的合成与表征：氧进化反应应用的高效催化剂
The European Physical Journal Applied Physics Pub Date : 2024-08-12 DOI: 10.1051/epjap/2024240077
P. Kamakshi, C. Joshitha, Santhosh Chella, Ganesh Kumar K
{"title":"Synthesis and characterization of Co3O4/Ti3C2 MXene nanocomposite: Efficient catalyst for Oxygen Evolution Reaction Application","authors":"P. Kamakshi, C. Joshitha, Santhosh Chella, Ganesh Kumar K","doi":"10.1051/epjap/2024240077","DOIUrl":"https://doi.org/10.1051/epjap/2024240077","url":null,"abstract":"In this investigation, cube-shaped Co3O4 nanoparticles and Co3O4/Ti3C2 MXene nanocomposite were successfully prepared through the solvothermal method. XRD analysis substantiated the cubic structure formation in Co3O4. Morphological and compositional analyses were conducted using FESEM and EDS analysis. The chemical states and surface properties of the materials were explored through XPS analysis. The characterized pristine and composite electro-catalysts were evaluated for oxygen evolution reaction. Co3O4/Ti3C2 MXene nanocomposite catalyst showed reduced over potential of 454 mV. The parameters of Co3O4/Ti3C2 MXene nanocomposite significantly enhanced the kinetics of oxygen evolution reaction than the bare Co3O4 nanoparticles.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"38 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141919308","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: 0
Synthesis and characterization of Co3O4/Ti3C2 MXene nanocomposite: Efficient catalyst for Oxygen Evolution Reaction Application Co3O4/Ti3C2 MXene 纳米复合材料的合成与表征：氧进化反应应用的高效催化剂
The European Physical Journal Applied Physics Pub Date : 2024-08-12 DOI: 10.1051/epjap/2024240077
P. Kamakshi, C. Joshitha, Santhosh Chella, Ganesh Kumar K
{"title":"Synthesis and characterization of Co3O4/Ti3C2 MXene nanocomposite: Efficient catalyst for Oxygen Evolution Reaction Application","authors":"P. Kamakshi, C. Joshitha, Santhosh Chella, Ganesh Kumar K","doi":"10.1051/epjap/2024240077","DOIUrl":"https://doi.org/10.1051/epjap/2024240077","url":null,"abstract":"In this investigation, cube-shaped Co3O4 nanoparticles and Co3O4/Ti3C2 MXene nanocomposite were successfully prepared through the solvothermal method. XRD analysis substantiated the cubic structure formation in Co3O4. Morphological and compositional analyses were conducted using FESEM and EDS analysis. The chemical states and surface properties of the materials were explored through XPS analysis. The characterized pristine and composite electro-catalysts were evaluated for oxygen evolution reaction. Co3O4/Ti3C2 MXene nanocomposite catalyst showed reduced over potential of 454 mV. The parameters of Co3O4/Ti3C2 MXene nanocomposite significantly enhanced the kinetics of oxygen evolution reaction than the bare Co3O4 nanoparticles.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"10 43","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141919704","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: 0
Characterisation of barium hexaferrite thin films in microwave frequency band 微波频段六铁钡薄膜的特性分析
The European Physical Journal Applied Physics Pub Date : 2024-07-25 DOI: 10.1051/epjap/2024240087
Didier Vincent
{"title":"Characterisation of barium hexaferrite thin films \u0000in microwave frequency band","authors":"Didier Vincent","doi":"10.1051/epjap/2024240087","DOIUrl":"https://doi.org/10.1051/epjap/2024240087","url":null,"abstract":"The characterization of barium hexaferrite thin-films at microwave frequencies \u0000is important for determining their electromagnetic properties by measuring the \u0000elements of the permeability tensor. Layers of 15 μm were deposited by RF \u0000sputtering on a coplanar line. By measuring the S parameters under magnetic \u0000field conditions, the μ and κ elements of the permeability tensor were extracted \u0000and their variations as a function of the applied field were highlighted. Possible \u0000applications to absorbent layers are being considered","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"3 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141804257","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: 0
Anatase TiO2 film with dominant (001) facets prepared by radio frequency atmospheric pressure plasma 利用射频常压等离子体制备具有优势 (001) 面的氧化钛薄膜
The European Physical Journal Applied Physics Pub Date : 2024-07-19 DOI: 10.1051/epjap/2024230239
Yu Zhang, Haozhe Wang, Jie Cui, Tao He, Yu Xu, Jing Zhang
{"title":"Anatase TiO2 film with dominant (001) facets prepared by radio frequency atmospheric pressure plasma","authors":"Yu Zhang, Haozhe Wang, Jie Cui, Tao He, Yu Xu, Jing Zhang","doi":"10.1051/epjap/2024230239","DOIUrl":"https://doi.org/10.1051/epjap/2024230239","url":null,"abstract":"Anatase TiO2 nanosheets film with dominant (001) facets (TF-1) has attracted widespread research interest owing to wide-ranging industrial applications and fundamental importance. In this work, we prepared TF-1 with well adhesion on quartz substate in a short time (20 min) by radio frequency (RF) pulse-modulated plasma with hydrofluoric acid (HF) as the morphology controlling agent (MCA). Many intercrossed nanosheets were observed on the surface of TF-1 through SEM images, which provides more exposed reactive (001) facets. The degree of truncation (B/A) and the percentage of exposed (001) facets (S001/S) were estimated by XRD patterns and Raman spectra, which have been increased due to the presence of HF. XPS results indicate that F atoms are only adsorbed on anatase surface rather than doped into TiO2 lattice. The functions of HF on the growth of anatase TiO2 nanosheets were studied by density functional theory (DFT), revealing the stabilization effects associated with chemisorbed fluorine (F) atoms over (001) surface, and thus stimulating its preferred growth.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":" 895","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141823302","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: 0
Synthesis and structural, morphological, and chimico-optical properties of Sr2FeO4 Ruddlesden-Popper oxide Sr2FeO4 Ruddlesden-Popper 氧化物的合成及其结构、形态和拟态光学特性
The European Physical Journal Applied Physics Pub Date : 2024-07-03 DOI: 10.1051/epjap/2024240024
Samira Foudi, Khadoudj Guessoum, Sonia Ramdani, M. Hamici, Pierre Saint-Grégoire
{"title":"Synthesis and structural, morphological, and chimico-optical properties of Sr2FeO4 Ruddlesden-Popper oxide","authors":"Samira Foudi, Khadoudj Guessoum, Sonia Ramdani, M. Hamici, Pierre Saint-Grégoire","doi":"10.1051/epjap/2024240024","DOIUrl":"https://doi.org/10.1051/epjap/2024240024","url":null,"abstract":"The citrate sol-gel process was used to produce Sr2FeO4 strontium ferrite powder. The method involves metallic nitrates, citric acid and distilled water as a solvent, followed by calcination. The Ruddlesden-Popper structure of the resulting compound was identified by XRD analysis. The different molecular structures and vibration bands were studied by FTIR. The morphology of the powder was analysed using SEM. Samples appear of good crystalline quality and with interesting nanostructure. We studied optical properties and determined the band gap energy to lie about 2.8 eV, Sr2FeO4 can thus absorb photons having a wavelength less than 444 nm, approximately, making this compound potentially interesting for applications.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"105 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141681939","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: 0
Investigation of a sensitive, selective and cost-effective electrochemical meso-porous silicon based gas sensor for NO2 detection at room temperature 研究一种灵敏度高、选择性好、成本效益高的电化学介孔硅气体传感器，用于室温下检测二氧化氮
The European Physical Journal Applied Physics Pub Date : 2024-06-13 DOI: 10.1051/epjap/2024240081
Khaoula Azaiez, Hela Mhamdi, R. Benabderrahmane Zaghouani, T. Fiorido, Jean-Louis Lazzari, M. Bendahan, W. Dimassi
{"title":"Investigation of a sensitive, selective and cost-effective electrochemical meso-porous silicon based gas sensor for NO2 detection at room temperature","authors":"Khaoula Azaiez, Hela Mhamdi, R. Benabderrahmane Zaghouani, T. Fiorido, Jean-Louis Lazzari, M. Bendahan, W. Dimassi","doi":"10.1051/epjap/2024240081","DOIUrl":"https://doi.org/10.1051/epjap/2024240081","url":null,"abstract":"This work presents a nitrogen dioxide (NO2) gas sensor based on porous silicon with improved sensitivity, selectivity, and cost-efficiency. Porous silicon is being researched as an alternative material for gas sensors operating at room temperature (RT), making it suited for low-consumption applications. Meso-porous silicon (meso-PS) films were prepared on p+ type Si (100) using an electrochemical method for NO2 gas sensing. \u0000 Morphology, structural and optical properties of meso-PS films were investigated using scanning electron microscope (SEM), X-ray diffractometer (XRD), and UV-Vis spectroscopy. The gas sensing response of meso-PS samples was performed at RT with top parallel Al electrodes in the range of 4 to 10 ppm of NO2 gas. The tested sensor showed high normalized response (Rair/Rgas =40 for 4 ppm to 100 for 10 ppm) thanks to its high surface/volume ratio, good repeatability and reversibility, fast response (40 s) and recovery times (18 s), and good selectivity for NO2 vs. NH3, O3 and CO. All these performances obtained at RT are encouraging for low-power devices. \u0000","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"61 40","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141347082","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: 0
Investigating the structural, electronic, and magnetic properties of Cd1-xVxTe: Insights from First-Principles calculations 研究 Cd1-xVxTe 的结构、电子和磁特性：第一性原理计算的启示
The European Physical Journal Applied Physics Pub Date : 2024-05-14 DOI: 10.1051/epjap/2024240015
Mohamed Baiboud, Abdelaziz Labrag, M. Bghour, Mohammed Khenfouch, Halima Charkaoui, Ahmed Abou El Hassan, Hassan El Ouaddi, Said Laasri
{"title":"Investigating the structural, electronic, and magnetic properties of Cd1-xVxTe: Insights from First-Principles calculations","authors":"Mohamed Baiboud, Abdelaziz Labrag, M. Bghour, Mohammed Khenfouch, Halima Charkaoui, Ahmed Abou El Hassan, Hassan El Ouaddi, Said Laasri","doi":"10.1051/epjap/2024240015","DOIUrl":"https://doi.org/10.1051/epjap/2024240015","url":null,"abstract":"In our study, we aim to investigate the structural, electronic, and magnetic properties of CdVTe, a diluted magnetic semiconductor with a Cadmium telluride (CdTe) structure. To achieve this, we employ the full potential linear augmented plane wave method implemented in the CASTEP code, which allows us to accurately simulate the behavior of the system. To describe the electronic exchange and correlation effects, we adopt the generalized gradient approximation (GGA) within the density functional theory (DFT) framework. This choice of methodology ensures reliable and accurate calculations of the electronic and magnetic properties of Cd1-xVxTe. \u0000Our results reveal that the substitution of Vanadium (V) into the Cadmium (Cd) site of the CdTe lattice does not alter the zinc blende crystal structure, demonstrating the stability and structural integrity of the system. Furthermore, our calculations demonstrate that the introduction of Vanadium impurities leads to spin polarization within the material, resulting in the emergence of a magnetic moment. \u0000Notably, we find that a Vanadium concentration of approximately x≈0.12 exhibits the strongest magnetic properties, characterized by a significant magnetic moment. These findings provide valuable insights into the behavior and potential applications of CdVTe as a diluted magnetic semiconductor, shedding light on the interplay between structural, electronic, and magnetic properties in this material. \u0000","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"10 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140982015","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: 0
Influence of different terminations on the surface properties of rare earth sesquioxides: First-principle calculations 不同端接对稀土倍半氧化物表面特性的影响：第一原理计算
The European Physical Journal Applied Physics Pub Date : 2024-04-03 DOI: 10.1051/epjap/2024240010
Zhiwei Zheng, Jian Wang, Zhijun He
{"title":"Influence of different terminations on the surface properties of rare earth sesquioxides: First-principle calculations","authors":"Zhiwei Zheng, Jian Wang, Zhijun He","doi":"10.1051/epjap/2024240010","DOIUrl":"https://doi.org/10.1051/epjap/2024240010","url":null,"abstract":"Rare earth sesquioxide (R2O3) have attracted significant attention because of their stable surface and operable optical properties. In this paper, we comprehensively analyze the surface and optical properties of five rare earth sesquioxides (R2O3, where R=Sc, Y, La, Sm, Dy) using the first-principles method. The obtained results are consistent with other theoretical and experimental values. It is observed that the R terminated surfaces of R2O3 exhibits the lowest work function while the mixed atom terminations have the lowest surface energy, indicating their potential as electron emission materials. Additionally, calculations of optical properties reveal that R2O3 exhibits high reflectivity and optical absorption in the far ultraviolet region. Notably, Y2O3 demonstrates a remarkable 95% reflectivity in the far ultraviolet region, highlighting the immense potential of R2O3 in designing and applying optical devices. The theoretical calculation data in this paper provide a theoretical basis for related experiments.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140750941","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: 0
Photosensing properties of zinc nitride thin-film transistors fabricated on recyclable plastic substrates 在可回收塑料基板上制造的氮化锌薄膜晶体管的光传感特性
The European Physical Journal Applied Physics Pub Date : 2024-02-08 DOI: 10.1051/epjap/2024230169
Miguel A. Dominguez, Jose Luis Pau, Andrés Redondo-Cubero
{"title":"Photosensing properties of zinc nitride thin-film transistors fabricated on recyclable plastic substrates","authors":"Miguel A. Dominguez, Jose Luis Pau, Andrés Redondo-Cubero","doi":"10.1051/epjap/2024230169","DOIUrl":"https://doi.org/10.1051/epjap/2024230169","url":null,"abstract":"In this work, the characterization of zinc nitride (Zn3N2) Thin-film Transistors (TFTs) as phototransistors is presented. Polyethylene terephthalate is used as recyclable plastic substrate. A zinc oxide (ZnO) film is used as passivation layer. The Zn3N2 and ZnO films are deposited at room temperature using a magnetron sputtering. The sensitivity, responsivity and detectivity were extracted and analyzed. Interestingly, a relation between the maximum value of detectivity and the threshold voltage VT was found. Moreover, the electrical characteristics are analyzed after 100 days on air to evaluate the stability under ambient conditions. To the best of our knowledge, the characterization of Zn3N2 TFTs as phototransistors is presented for the first time.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"76 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139851149","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: 0
Photosensing properties of zinc nitride thin-film transistors fabricated on recyclable plastic substrates 在可回收塑料基板上制造的氮化锌薄膜晶体管的光传感特性
The European Physical Journal Applied Physics Pub Date : 2024-02-08 DOI: 10.1051/epjap/2024230169
Miguel A. Dominguez, Jose Luis Pau, Andrés Redondo-Cubero
{"title":"Photosensing properties of zinc nitride thin-film transistors fabricated on recyclable plastic substrates","authors":"Miguel A. Dominguez, Jose Luis Pau, Andrés Redondo-Cubero","doi":"10.1051/epjap/2024230169","DOIUrl":"https://doi.org/10.1051/epjap/2024230169","url":null,"abstract":"In this work, the characterization of zinc nitride (Zn3N2) Thin-film Transistors (TFTs) as phototransistors is presented. Polyethylene terephthalate is used as recyclable plastic substrate. A zinc oxide (ZnO) film is used as passivation layer. The Zn3N2 and ZnO films are deposited at room temperature using a magnetron sputtering. The sensitivity, responsivity and detectivity were extracted and analyzed. Interestingly, a relation between the maximum value of detectivity and the threshold voltage VT was found. Moreover, the electrical characteristics are analyzed after 100 days on air to evaluate the stability under ambient conditions. To the best of our knowledge, the characterization of Zn3N2 TFTs as phototransistors is presented for the first time.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":" 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139791315","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: 0
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