Journal of Materials Research最新文献_第2页

Flexible P(VDF–TrFE)/BNT–BT composite films and their dielectric, ferroelectric and energy storage properties 柔性 P（VDF-TrFE）/BNT-BT 复合薄膜及其介电、铁电和储能特性

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-09-06 DOI: 10.1557/s43578-024-01404-7

P. S. Lekshmi Priya, S. Behera, S. Parida, Abhisek Choudhary, Dhiraj Kumar Rana

{"title":"Flexible P(VDF–TrFE)/BNT–BT composite films and their dielectric, ferroelectric and energy storage properties","authors":"P. S. Lekshmi Priya, S. Behera, S. Parida, Abhisek Choudhary, Dhiraj Kumar Rana","doi":"10.1557/s43578-024-01404-7","DOIUrl":"https://doi.org/10.1557/s43578-024-01404-7","url":null,"abstract":"The dielectric, ferroelectric and energy storage properties of 0–3 composite systems with 0.92(Bi0.5Na0.5)TiO3–0.08BaTiO3(BNT–BT) ceramics and Poly(vinylidene fluoride trifluoroethylene) P(VDF–TrFE) copolymer were investigated. The composites are prepared by solvent casting followed by hot-pressing technique. The presence of good ferroelectric properties in the composites is confirmed by the electroactive β-phase which was found to be more than 80% in almost all the composites. The inorganic ceramic fillers improve the dielectric properties of the ceramics. The polarisation response in the composite film increases because of the interface effect between the polymer matrix and ceramic filler. The room-temperature ferroelectric hysteresis loops indicate an increase in remnant polarisation of the matrix with the concentration of filler. The energy storage density efficiency of the composites changes from 81 to 58% upon adding the ceramic filler. Piezoelectric properties of P(VDF–TrFE)–0.92(Bi0.5Na0.5)TiO3–0.08BaTiO3 composite were also investigated and found to be increased. So this composite is preferable for energy storage as well as harvesting applications.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced stability and decreased size limit for magnetic vortex state in thin permalloy nanodisk by radial modulation of thickness 通过径向调节厚度增强薄超耐热合金纳米盘中磁涡旋态的稳定性并降低其尺寸限制

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-09-06 DOI: 10.1557/s43578-024-01431-4

Akhila Priya Kotti, Amaresh Chandra Mishra

引用次数: 0

Synergistic effect of chromium–nickel based organic frameworks toward an effective electrochemical determination of flutamide in environmental samples 铬镍基有机框架对有效电化学测定环境样品中氟胺的协同效应

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-09-06 DOI: 10.1557/s43578-024-01421-6

Navaneeth Kumar Ravikumar, Panneerselvam Perumal

引用次数: 0

Solidification behavior of Ni-based superalloy at different cooling rates 不同冷却速率下镍基超合金的凝固行为

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-09-05 DOI: 10.1557/s43578-024-01429-y

Shuai He, Zhifeng Li, Chi Zhang, Xin Liu, Chaoyi Wang, Junsheng Wang

{"title":"Solidification behavior of Ni-based superalloy at different cooling rates","authors":"Shuai He, Zhifeng Li, Chi Zhang, Xin Liu, Chaoyi Wang, Junsheng Wang","doi":"10.1557/s43578-024-01429-y","DOIUrl":"https://doi.org/10.1557/s43578-024-01429-y","url":null,"abstract":"The solidification behavior of Ni-based superalloy in the cooling rates range of 0.5–10 °C/s was investigated for simulation the casting process. Scheil model was used to calculate the solidification path of Ni-based superalloy. The results show that the precipitation sequence of solid phases from the liquid phase was as follows: Liquid (L) → L + γ → L + γ + MC → γ + MC + γ/γ′ eutectic. The precipitation temperature of γ/γ′ eutectic was increased with the increase of cooling rate. The solidification structures of Ni-based superalloy were found to be mainly dendritic, and the distance between dendrites decreased with the increase of cooling rate. The MC carbides enriched with C, Ti, Hf, Ta, and other elements presented rectangles, which contributed to refine the solidification structure as the heterogeneous nucleus. The nano-indentation was used to measure the γ + γ′ matrix and MC cabides, and the mechanism of cooling rate on the evolution of microstructure during the solidification was discussed.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>The solidification structures of Ni-based superalloy.","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First principles investigations of chalcogenides perovskites for optoelectronic applications 用于光电应用的铬化物包晶的第一性原理研究

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-09-05 DOI: 10.1557/s43578-024-01432-3

Maha Naeem, Nawaz Muhammad, G. Murtaza, Hafiz Hamid Raza, Hafiz Irfan Ali

{"title":"First principles investigations of chalcogenides perovskites for optoelectronic applications","authors":"Maha Naeem, Nawaz Muhammad, G. Murtaza, Hafiz Hamid Raza, Hafiz Irfan Ali","doi":"10.1557/s43578-024-01432-3","DOIUrl":"https://doi.org/10.1557/s43578-024-01432-3","url":null,"abstract":"Perovskite chalcogenides have been acknowledged as a potential candidate for solar cell applications. We have investigated new chalcogenide perovskite AInX3 (A = Sc, Y and X = S, Se) materials in the present study. The WIEN2k packages are used based on the framework of DFT. AInX3 (A = Sc, Y and X = S, Se) are crystallized in the orthorhombic phase. The band gap is calculated by TB-mBJ. All the studied compounds have indirect band gaps in the visible energy range. They show high carrier conductivity because of small effective masses. The optical parameters including the complex dielectric constant, refractive index, reflectivity, absorption coefficient, optical conductivity, energy loss function, and extinction coefficient are examined in detail. The thermoelectric properties are also investigated through the BoltzTraP code. Elastic properties suggest that all materials are ductile. The calculated characteristics indicate that these compounds have the potential to be used in photovoltaic devices.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>Unit cell crystal structure of chalcogenide perovskite ABX3 (A = Sc, Y, B = In and X = S, Se) in an orthorhombic (GdFeO3-type) phase; wine-red: A = Sc/Y, purple: B = In; and yellow: X = S/Se. Electronic band lies in visible region for all the studied compounds.","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Functionalization of nanostructured surfaces: From the impact on morphological control during synthesis to the effect on colloidal dispersion 纳米结构表面的功能化：从对合成过程中形态控制的影响到对胶体分散的影响

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-09-03 DOI: 10.1557/s43578-024-01428-z

Walter Sperandio Sampaio, Cleocir José Dalmaschio

{"title":"Functionalization of nanostructured surfaces: From the impact on morphological control during synthesis to the effect on colloidal dispersion","authors":"Walter Sperandio Sampaio, Cleocir José Dalmaschio","doi":"10.1557/s43578-024-01428-z","DOIUrl":"https://doi.org/10.1557/s43578-024-01428-z","url":null,"abstract":"Nanoscience has grown in recent decades since the development of nanoparticle synthesis and application. Although many studies have phenomenologically interpreted the formation of particles at the nanometric scale, the evolution of this field of study has focused on controlling the parameters enabling the attainment of desired morphologies and dimensions using ligands on nanoparticle surfaces. Molecules bound to nanostructured surfaces act in morphological control and aggregation processes as surface ligands transfer functional characteristics to nanostructures, which show core differences from that class of material. This study shows recent advances in nanoparticle surface functionalization with ligands either in their synthesis or in subsequent steps to modify nanoparticle surfaces. We also offer a discussion on ligand classification based on Lewis acid‒base properties and their impact on the colloidal stability of nanoparticles, enabling us to analyze the solvent‒ligand interactions that transfer characteristics from the ligand to the nanoparticle, generating flocculated or dispersed colloidal solutions.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphological improvement of a novel & non-toxic double perovskite MA2NaBiCl6 by thermal annealing treatment: Enhanced the PCE of solar cell device 通过热退火处理改善新型无毒双过氧化物 MA2NaBiCl6 的形态：提高太阳能电池装置的 PCE

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-09-03 DOI: 10.1557/s43578-024-01413-6

Neelu Neelu, Nivedita Pandey, Subhananda Chakrabarti

{"title":"Morphological improvement of a novel & non-toxic double perovskite MA2NaBiCl6 by thermal annealing treatment: Enhanced the PCE of solar cell device","authors":"Neelu Neelu, Nivedita Pandey, Subhananda Chakrabarti","doi":"10.1557/s43578-024-01413-6","DOIUrl":"https://doi.org/10.1557/s43578-024-01413-6","url":null,"abstract":"In perovskite solar cells, annealing time and temperature are crucial parameters to obtain high quality film crystallization, desired morphology, and texture. Annealing enhances charge-carrier transport and minimizes non-radiative defects, resulting in improved power conversion efficiency (PCE). Firstly, we have synthesized a novel and hybrid halide double perovskites (DP) material MA2NaBiCl6 using hydrothermal and we have done material characterizations. We have fabricated solar cell using as-synthesized DP as a absorber material, ZnO as electron transport layer and Cu2O as hole transport layer and performance parameters was calculated. Furthermore, to enhance the device performance, we have annealed it at different temperature varying from 50 to 225 °C and analyzed improvements in material’s morphology and device performance. Also, the annealing time (30 s–5 min) was varied at optimum annealing temperature. The optimized annealing temperature and time is 200 °C and 2 min respectively on which we achieved 3.49% PCE from the RT efficiency 1.671%.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical approaches to study degradation in Li-ion battery cathodes: Crucial role of exchange and correlation 研究锂离子电池阴极降解的理论方法：交换和关联的关键作用

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-08-29 DOI: 10.1557/s43578-024-01408-3

Hrishit Banerjee, Andrew J. Morris

{"title":"Theoretical approaches to study degradation in Li-ion battery cathodes: Crucial role of exchange and correlation","authors":"Hrishit Banerjee, Andrew J. Morris","doi":"10.1557/s43578-024-01408-3","DOIUrl":"https://doi.org/10.1557/s43578-024-01408-3","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3> Li-ion batteries have become essential in energy storage, with demand rising steadily. Cathodes, crucial for determining capacity and voltage, face challenges like degradation in the form of thermal runaway and battery failure. Understanding these degradation phenomena is vital for developing mitigation strategies. Experimental techniques such as XAS, XPS, PES, UV–Vis, RIXS, NMR, and OEMS are commonly used, but theoretical modelling, particularly atomistic modelling with density-functional theory (DFT), provides key insights into the microscopic electronic behaviours causing degradation. While DFT offers a precise formulation, its approximations in the exchange-correlation functional and its ground-state, 0K limitations necessitate additional methods like ab initio molecular dynamics. Recently, many-body electronic structure methods have been used alongside DFT to better explain electron–electron interactions and temperature effects. This review emphasizes material-specific methods and the importance of electron–electron interactions, highlighting the role of many-body methods in addressing key issues in cathode degradation and future development in electron–phonon coupling methods.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of magnetic 4A zeolite and its performance on ammonia nitrogen adsorption in water 磁性 4A 沸石的合成及其在水中吸附氨氮的性能

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-08-29 DOI: 10.1557/s43578-024-01422-5

Deqi Tang, Tao Meng, Zhaoteng Xue, Dongsen Mao

{"title":"Synthesis of magnetic 4A zeolite and its performance on ammonia nitrogen adsorption in water","authors":"Deqi Tang, Tao Meng, Zhaoteng Xue, Dongsen Mao","doi":"10.1557/s43578-024-01422-5","DOIUrl":"https://doi.org/10.1557/s43578-024-01422-5","url":null,"abstract":"Fe3O4@SiO2/4A magnetic nanocomposites (magnetic 4A zeolite) have been synthesized by hydrothermal method which endowed 4A zeolite with magnetic separation characteristics. XRD results showed that the magnetic 4A zeolite had the characteristic diffraction peaks of both 4A zeolite and Fe3O4. The SEM images displayed the combination of 4A zeolite and Fe3O4. N2 physical adsorption showed that magnetic 4A zeolite had a large specific surface area and can provide a large number of adsorption sites for ammonia nitrogen. The magnetic separation results showed that magnetic 4A zeolite exhibited fast response to external magnetic field, and the saturation strength measured by VSM was 5.85 emu g−1, indicating the superparamagnetic properties of magnetic 4A zeolite. The removal rate of ammonia nitrogen by FSA-M-1 sample reached to 43.18%. After 6 rounds of repeated adsorption experiments, each sample’s magnetic recovery rate was above 95%, and the removal rate of ammonia nitrogen was higher than 36%.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the role of fractals dynamics in the evolution of microstructures in thin films and bulk materials 分形动力学在薄膜和块体材料微结构演变中的作用

IF 2.7 4区材料科学

Journal of Materials Research Pub Date : 2024-08-26 DOI: 10.1557/s43578-024-01424-3

K. A. Padmanabhan, M. Ghanashyam Krishna

{"title":"On the role of fractals dynamics in the evolution of microstructures in thin films and bulk materials","authors":"K. A. Padmanabhan, M. Ghanashyam Krishna","doi":"10.1557/s43578-024-01424-3","DOIUrl":"https://doi.org/10.1557/s43578-024-01424-3","url":null,"abstract":"Fractal (micro)-structures are observed in many thin films, bulk specimens and fractured samples. A phenomenon that leads to the formation of these structures in thin films is diffusion-limited aggregation. The assumption in diffusion-limited aggregation is that formation of such structures is independent of the source conditions and relies only on film-substrate interactions with requirement of single crystallinity in both cases. The possibilities of fractal structures occurring in amorphous or crystalline film-on-amorphous or crystalline substrate have received limited attention. However, results on sputter deposited transition metal nitride thin films show that these combinations can indeed lead to fractal structures such as dendrites and snowflakes. In this work we postulate that the formation of these microstructures is perhaps related and sensitive to the initial conditions provided for growth, which leads to a conclusion that perhaps chaos-related dynamics is at work. We believe that a new theoretical framework is required to explain these phenomena. An attempt to identify the knowns and the unknowns in this area is made using our results as well as some available in the literature.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":16306,"journal":{"name":"Journal of Materials Research","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142216668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0