Materials Science and Engineering: B最新文献

Molecular dynamics simulation of impact compression of Gr(GO)/C-S-H composites

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-04 DOI: 10.1016/j.mseb.2025.118267

Jianlin He , Ali Arab , Chunwei Zhang

{"title":"Molecular dynamics simulation of impact compression of Gr(GO)/C-S-H composites","authors":"Jianlin He , Ali Arab , Chunwei Zhang","doi":"10.1016/j.mseb.2025.118267","DOIUrl":"10.1016/j.mseb.2025.118267","url":null,"abstract":"<div><div>To reveal the impact resistance mechanism of nano-reinforced calcium silicate hydride (C-S-H) composites. The micromechanical response of graphene (Gr) and graphene oxide containing epoxy (GO-O) and hydroxyl (GO-OH) groups with C-S-H composites under impact compression loading was systematically investigated using molecular dynamics. The study reveals the significant influence of functional groups (−O, –OH) on the wavefront stability and regularity of shock waves, as well as the critical enhancement of the mechanical properties of composites.Incorporating Gr (GO) significantly increased the impact velocity corresponding to the Hugoniot elastic limit (P<sub>HEL</sub>) of C-S-H, where the GO-OH/C-S-H composites exhibited the best stability and impact resistance due to their stable chemical bonding and low atomic diffusion rate.Radial Distribution Function (RDF) and Mean Square Displacement (MSD) analyses show that the increase in impact velocity significantly alters the chemical bonding structure of the composites, leading to a rapid increase in the rate of atomic diffusion and material disorder. This study provides a new understanding of the microscopic mechanism of the impact response of nano-reinforced C-S-H composites and important theoretical guidance for designing and optimising high-performance cementitious composites.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118267"},"PeriodicalIF":3.9,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

La0.75Sr0.25Cr0.5Mn0.5O3-δ-Ce0.8Gd0.2O1.9 composite cathode in solid oxide electrolysis cell for efficient CO2 electroreduction

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-03 DOI: 10.1016/j.mseb.2025.118242

Kaiyu Feng , Lige Zhang , Na Gao , Ruizhu Li , Tiancheng Cui , Huichao Yao , Yue Wang , Xiulin Wang , Jian-Qiang Wang , Guoping Xiao

{"title":"La0.75Sr0.25Cr0.5Mn0.5O3-δ-Ce0.8Gd0.2O1.9 composite cathode in solid oxide electrolysis cell for efficient CO2 electroreduction","authors":"Kaiyu Feng , Lige Zhang , Na Gao , Ruizhu Li , Tiancheng Cui , Huichao Yao , Yue Wang , Xiulin Wang , Jian-Qiang Wang , Guoping Xiao","doi":"10.1016/j.mseb.2025.118242","DOIUrl":"10.1016/j.mseb.2025.118242","url":null,"abstract":"<div><div>La<sub>0.75</sub>Sr<sub>0.25</sub>Cr<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3-δ</sub> (LSCM) perovskite materials have emerged as the ideal cathode materials for solid oxide electrolysis cell (SOEC). In this study, we propose a method to prepare composite cathode by physically mixing Ce<sub>0.8</sub>Gd<sub>0.2</sub>O<sub>1.9</sub>(GDC) and LSCM powders. Compared to unmodified LSCM cathodes, the electrocatalytic activity and stability of the composite cathodes were significantly enhanced. Notably, the composite cathode with an LSCM-GDC ratio of 4:6 exhibited the greatest improvement in electrocatalytic CO<sub>2</sub> reduction. The electrolytic CO<sub>2</sub> current density of the LSCM-GDC(4:6)|GDC|SSZ|GDC|LSCF cell reached 1214 mA cm<sup>−2</sup> at 800 ℃ and 1.6 V, representing a 54 % increase in current density compared to the unmodified LSCM cathode. During long-term stability testing, the LSCM-GDC (4:6) composite cathode maintained good stability with no significant degradation. Physicochemical characterization of the CO<sub>2</sub> reduction process revealed that LSCM-GDC composite cathode increased the three-phase interfacial activity and surface oxygen vacancy concentration.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118242"},"PeriodicalIF":3.9,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Evaluation of Ni0.94Zn0.06O thin film performance and characterization for optoelectronic applications: Structural, optical, and electrical perspectives

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-03 DOI: 10.1016/j.mseb.2025.118237

Halemah I. El-Saeedy , Huriyyah A. Alturaifi , Hisham A. Saleh

{"title":"Evaluation of Ni0.94Zn0.06O thin film performance and characterization for optoelectronic applications: Structural, optical, and electrical perspectives","authors":"Halemah I. El-Saeedy , Huriyyah A. Alturaifi , Hisham A. Saleh","doi":"10.1016/j.mseb.2025.118237","DOIUrl":"10.1016/j.mseb.2025.118237","url":null,"abstract":"<div><div>Ni<sub>0.94</sub>Zn<sub>0.06</sub>O films grown at 723 <em>K</em> on clean glass substrates via spray pyrolysis technique, thereafter, the deposited films were annealed at temperatures of 773, and 823 <em>K</em> respectively, for 1 hr. The deposited films were structurally characterized using X-ray diffraction (XRD), a field emission scanning electron microscope (FE-SEM) interfaced with energy-dispersive X-ray spectroscopy (EDAX) and a high-resolution transmission electron microscope (HRTEM),). The prepared films are found to belong to cubic structures based on X-ray data. An increase in particle size with increasing temperature was found by evaluating the variation of the particle size D, strain, ε and dislocation density, <em>δ</em> as a function of the annealing temperatures. The analysis of the optical transmission spectra in the 200–2500 nm wavelength range shows that the refractive index n increases with the annealing temperature, but the optical band gap <em>E<sub>g</sub></em> value decreases. Two different types of conduction mechanisms are revealed by the film resistance dependence of temperature measured between 300 and 600 K. For these types, the activation energy Δ<em>E<sub>g</sub></em> values decrease as the annealing temperature increases.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118237"},"PeriodicalIF":3.9,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

CO2 detection using microwave metasurface-based antennas covered with carbon nanotubes

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-03 DOI: 10.1016/j.mseb.2025.118282

Alina Cismaru, Mircea Dragoman, Sergiu Iordănescu, Cosmin Obreja, Valentin Buiculescu, Hamza El Ghannudi, Cătălin Pârvulescu, Damir Mladenovic, Mihaela Carp, Oana Brâncoveanu

引用次数: 0

Photoelectric response of the GaInAsSb heterojunction nanopillars array resonance cathode to oblique incident light

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-03 DOI: 10.1016/j.mseb.2025.118156

Zhidong Wang, Lei Liu, Zhihao Cao, Jian Tian, Xingyue Zhangyang

引用次数: 0

Wave absorption control strategy of rare earth praseodymium ion in M-type strontium ferrite materials

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-03 DOI: 10.1016/j.mseb.2025.118283

Qianqian Zhao , Xiaodong Jing , Xiaoqiang Xiong , Qun Wang , Xi Yang , Junjie Yan , Tongyun Zhao , Huayang Gong , Guoguo Tan

{"title":"Wave absorption control strategy of rare earth praseodymium ion in M-type strontium ferrite materials","authors":"Qianqian Zhao , Xiaodong Jing , Xiaoqiang Xiong , Qun Wang , Xi Yang , Junjie Yan , Tongyun Zhao , Huayang Gong , Guoguo Tan","doi":"10.1016/j.mseb.2025.118283","DOIUrl":"10.1016/j.mseb.2025.118283","url":null,"abstract":"<div><div>To enhance the absorption effect, this study has proposed two different control strategies: iron reduction (SrFe<sub>x</sub>Pr<sub>0.1</sub>O<sub>19</sub>, 10.5 ≤ x ≤ 11.9) and praseodymium increase (SrFe<sub>10.5</sub>Pr<sub>y</sub>O<sub>19</sub>, 0.1 ≤ y ≤ 1.5). The results show that reducing the iron content to 11.5 does not affect the improvement of wave-absorbing performance, but continuously reducing the iron content to 10.5 will significantly reduce the absorption effect. On this basis, increasing the content of praseodymium significantly improves the absorption performance. This may be related to the various polarization effects and heterogeneous phases generated by praseodymium substitution. The synergistic effect of these two factors enables the material to maintain excellent absorption performance over a wide range of praseodymium substitution (0.1 − 1.5). Through comparison, it is found that the presence of praseodymium ions is more sensitive to improving the wave-absorbing properties of strontium ferrite. The samples can achieve a minimum reflection loss of −61.45 dB, demonstrating the excellent wave-absorbing effects brought by the action of praseodymium ions.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118283"},"PeriodicalIF":3.9,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhancement of the effect of EDTA and GLY on InP alkaline CMP: Removal rate, surface morphology, and theoretical studies 增强 EDTA 和 GLY 对 InP 碱性 CMP 的影响：去除率、表面形态和理论研究

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-03 DOI: 10.1016/j.mseb.2025.118288

Meiling Qi , Ming Sun , Xueli Yang

引用次数: 0

Flexible 2D/0D heterojunction of bimetallic Copper molybdate and zinc sulfide quantum dots for broad-band photodetection

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-02 DOI: 10.1016/j.mseb.2025.118256

V.K. Amritha , Gopika Mukundan , Sushmee Badhulika

{"title":"Flexible 2D/0D heterojunction of bimetallic Copper molybdate and zinc sulfide quantum dots for broad-band photodetection","authors":"V.K. Amritha , Gopika Mukundan , Sushmee Badhulika","doi":"10.1016/j.mseb.2025.118256","DOIUrl":"10.1016/j.mseb.2025.118256","url":null,"abstract":"<div><div>Flexible photodetectors hold considerable promise for applications in imaging, communication, healthcare, and environmental monitoring. This study presents a broadband photodetector that combines a bimetallic Copper Molybdate (CuMoO<sub>4</sub>) thin film with Zinc Sulfide Quantum Dots (ZnS QDs) on a flexible paper substrate. The ZnS QDs, synthesized through a co-precipitation technique, capitalize on their nanoscale properties, which arise from quantum confinement effects. When integrated with the CuMoO<sub>4</sub> thin film, these quantum dots significantly enhance the optoelectronic performance of the device. CuMoO<sub>4</sub>, with its 1.9 eV bandgap, is highly sensitive to light in the visible and infrared regions of the spectrum. The incorporation of ZnS QDs further extends the device’s sensitivity into the ultraviolet range, enabling it to detect a broad spectrum from UV to IR within a compact configuration. The device demonstrates impressive responsivity values of 109.7 mA/W (UV), 328.44 mA/W (visible), and 33.19 mA/W (IR), along with high detectivity figures of 7.1x10<sup>11</sup> Jones (UV), 19.3 x 10<sup>11</sup> Jones (visible), and 1.9 x 10<sup>11</sup> Jones (IR) under respective light intensities of 2.9 mW/cm<sup>2</sup>, 0.013 mW/cm<sup>2</sup>, and 9.945 mW/cm<sup>2</sup>. The combination of ZnS QDs with CuMoO<sub>4</sub> represents a significant breakthrough in photodetector technology, offering enhanced sensitivity, a broader spectral detection range, and the potential for integration into wearable and portable electronics.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118256"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Study on the interface properties and thermal conductivity of graphene/silicone rubber composites with structural defects and surface modifications

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-02 DOI: 10.1016/j.mseb.2025.118266

Weihao Tao , Xianpeng Zhu , Yanlong Luo , Xiujuan Wang

{"title":"Study on the interface properties and thermal conductivity of graphene/silicone rubber composites with structural defects and surface modifications","authors":"Weihao Tao , Xianpeng Zhu , Yanlong Luo , Xiujuan Wang","doi":"10.1016/j.mseb.2025.118266","DOIUrl":"10.1016/j.mseb.2025.118266","url":null,"abstract":"<div><div>The inevitable defects of graphene (GE) in the preparation process and the problem of insufficient reduction degree of graphene greatly compromise the thermal conductivity of graphite-filled composites. Surface modification of graphene can promote interfacial heat transfer. However, the effects of functional groups and defect types on the thermal conductivity of composites are still unclear. Therefore, this study employs molecular dynamics simulations to investigate the effects of defect types and functional groups on graphene-filled vinyl silicone rubber (MVSR) composites. Additionally, it elucidates the competitive mechanisms of surface modification on the destruction of interface structure and the improvement of thermal conductivity. The results indicate that the interfacial thermal conductance (TC) of the divacancy GE/MVSR composites is lower than that of the monovacancy GE/MVSR composites when the concentration of vacancy defects is 2.2%. Moreover, when the structural defects of graphene are reconstructed, the TC of the composite material is reduced. When the grafting ratio is 4.8%, the thermal conductivity of the carboxylated graphene (GE-COOH)/MVSR composite material is maximized compared to other functional groups. When the carboxyl grafting ratio is 19.9%, the thermal conductivity of the composite material increases by 30% compared to pure MVSR. The results of this study provide valuable information for the study of the effects of functional groups and defects of graphene on the thermal conductivity of graphene-filled nanocomposites, and provide guidance for the surface modification of graphene and the optimization of thermal conductivity of graphene/rubber composites.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118266"},"PeriodicalIF":3.9,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

High performance all oxide thin film transistor with ink-jet printing metal oxide dielectric pattern

IF 3.9 3区材料科学

Materials Science and Engineering: B Pub Date : 2025-04-01 DOI: 10.1016/j.mseb.2025.118244

Kefeng Zou, Zexian Zhao, Zhenghao Gui, Meng Xu, Longlong Chen, Xifeng Li, Jianhua Zhang

{"title":"High performance all oxide thin film transistor with ink-jet printing metal oxide dielectric pattern","authors":"Kefeng Zou, Zexian Zhao, Zhenghao Gui, Meng Xu, Longlong Chen, Xifeng Li, Jianhua Zhang","doi":"10.1016/j.mseb.2025.118244","DOIUrl":"10.1016/j.mseb.2025.118244","url":null,"abstract":"<div><div>In this paper, the effect of the printing parameters on the forming behavior of dot, line and plane for hafnium-aluminum-oxide is thoroughly investigated by simulation and experiment. First, the spreading process of inkjet droplets was been numerically simulated by using the volume of fluid model. And the optimal contact angle and drop space for printing hafnium-aluminum-oxide pattern were obtained. Ultrasonic treatment can remove some polar hydrophilic molecules on the surface of the substrate, which controlled the spreading of the printed patterns. The inkjet-print hafnium-aluminum-oxide film exhibits the permittivity of 9.3 at 100 kHz and afforded a leakage current below 10<sup>-6</sup> A/cm<sup>2</sup> at 2 MV. Finally, the fabricated indium-zinc-tin oxide TFTs using inkjet print exhibit mobility of 8.89 cm<sup>2</sup>v<sup>-1</sup>s<sup>−1</sup>, subthreshold swing of 0.09 V/decade and ON-OFF-current ratio of 8.69 × 10<sup>8</sup>. This means that inkjet printing is expected to be the leading key technology for manufacturing oxide TFT arrays.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118244"},"PeriodicalIF":3.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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