Materials Science and Engineering: B最新文献

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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 ,&nbsp;Lige Zhang ,&nbsp;Na Gao ,&nbsp;Ruizhu Li ,&nbsp;Tiancheng Cui ,&nbsp;Huichao Yao ,&nbsp;Yue Wang ,&nbsp;Xiulin Wang ,&nbsp;Jian-Qiang Wang ,&nbsp;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 ,&nbsp;Huriyyah A. Alturaifi ,&nbsp;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
{"title":"CO2 detection using microwave metasurface-based antennas covered with carbon nanotubes","authors":"Alina Cismaru,&nbsp;Mircea Dragoman,&nbsp;Sergiu Iordănescu,&nbsp;Cosmin Obreja,&nbsp;Valentin Buiculescu,&nbsp;Hamza El Ghannudi,&nbsp;Cătălin Pârvulescu,&nbsp;Damir Mladenovic,&nbsp;Mihaela Carp,&nbsp;Oana Brâncoveanu","doi":"10.1016/j.mseb.2025.118282","DOIUrl":"10.1016/j.mseb.2025.118282","url":null,"abstract":"<div><div>In this paper a novel CO<sub>2</sub> sensor based on two types of metasurface-based antennas coated with single wall carbon nanotubes (SWCNTs), and functionalized with carbon nitride nanosheets (g-C<sub>3</sub>N<sub>4</sub>) as a gas adsorber is presented. The antenna A1 with complementary split-ring resonators (CSRRs) integrated into the patch and covered with CNTs works at 16.06 GHz (A1 CNT) and the antenna A2 with CSRRs incorporated into the ground plane covered with CNTs works at 17.06 GHz. The experimental results demonstrate a shift in frequency with almost 5 MHz for A1 CNT and with almost 15 MHz for A2 CNT at the concentration level of 1800 ppm. The interaction between CO<sub>2</sub> and the CNTs covering the metasurface-based antennas produced a good sensitivity, of 2.7 kHz/ppm for A1 CNT and 8.3 kHz/ppm for A2 CNT at the concentration level of 1800 ppm.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118282"},"PeriodicalIF":3.9,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759312","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
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
{"title":"Photoelectric response of the GaInAsSb heterojunction nanopillars array resonance cathode to oblique incident light","authors":"Zhidong Wang,&nbsp;Lei Liu,&nbsp;Zhihao Cao,&nbsp;Jian Tian,&nbsp;Xingyue Zhangyang","doi":"10.1016/j.mseb.2025.118156","DOIUrl":"10.1016/j.mseb.2025.118156","url":null,"abstract":"<div><div>GaInAsSb heterojunction nanopillar array (NPAs) photocathode is widely used in low light night vision, high-frequency detection and other fields due to its high absorption efficiency and fast response speed. The work designs a variable composition Ga<sub>x</sub>In<sub>1–x</sub>As<sub>1–y</sub>Sb<sub>y</sub> heterojunction nanopillar array under oblique light incidence, and explores the effect of oblique light incidence on the photoelectric emission performance of the nanopillar array. By using FDTD and numerical simulation methods, the results show that the introduction of incident angle improves the enrichment of charge carriers on the side of the nanopillar, thereby achieving the gain of QE of nanopillar. And when the incident light angle approaches the critical angle, the heterojunction nanopillar array can achieve a QE of nearly 18%, providing a reliable theoretical reference for designing and preparing high-efficiency photocathodes with wide-angle response.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118156"},"PeriodicalIF":3.9,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759311","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
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
{"title":"Enhancement of the effect of EDTA and GLY on InP alkaline CMP: Removal rate, surface morphology, and theoretical studies","authors":"Meiling Qi ,&nbsp;Ming Sun ,&nbsp;Xueli Yang","doi":"10.1016/j.mseb.2025.118288","DOIUrl":"10.1016/j.mseb.2025.118288","url":null,"abstract":"<div><div>Indium phosphide (InP) substrates are essential in high-efficiency photonic integrated circuits. While acidic InP CMP slurries achieve high material removal rates, they produce toxic byproducts; alkaline slurries are safer but generally have lower removal rates. To address this, researchers developed a novel alkaline slurry by selecting ethylenediaminetetraacetic acid (EDTA) and glycine (GLY) as complexing agents.With the addition of 1.1 wt% EDTA and GLY to the alkaline slurry, the material removal rate increased by 176 nm·min<sup>−1</sup> and 162 nm·min<sup>−1</sup>, respectively, and surface roughness decreased. Electrochemical measurements and quantum chemistry (QC) calculations indicate that both chelating agents form complexes with indium on the InP surface via their carboxyl groups. Furthermore, molecular dynamics (MD) simulations and X-ray photoelectron spectroscopy (XPS) analyses suggest that differences in the adsorption strengths of EDTA and GLY on InP and its oxides account for their varying effects.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118288"},"PeriodicalIF":3.9,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759238","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
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 ,&nbsp;Gopika Mukundan ,&nbsp;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 ,&nbsp;Xianpeng Zhu ,&nbsp;Yanlong Luo ,&nbsp;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,&nbsp;Zexian Zhao,&nbsp;Zhenghao Gui,&nbsp;Meng Xu,&nbsp;Longlong Chen,&nbsp;Xifeng Li,&nbsp;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
Enhancing La1.2Sr0.8NiO4+δ cathode electrocatalysis for protonic ceramic fuel cells with Zn-doping
IF 3.9 3区 材料科学
Materials Science and Engineering: B Pub Date : 2025-04-01 DOI: 10.1016/j.mseb.2025.118255
Wang Jiang , Yuxuan Wei , Chujia Jin , Fang Wu , Jie Hou
{"title":"Enhancing La1.2Sr0.8NiO4+δ cathode electrocatalysis for protonic ceramic fuel cells with Zn-doping","authors":"Wang Jiang ,&nbsp;Yuxuan Wei ,&nbsp;Chujia Jin ,&nbsp;Fang Wu ,&nbsp;Jie Hou","doi":"10.1016/j.mseb.2025.118255","DOIUrl":"10.1016/j.mseb.2025.118255","url":null,"abstract":"<div><div>Modulating B-site atomic environment in K<sub>2</sub>NiF<sub>4</sub>-type material offers a promising strategy to tailor electrocatalytic properties. Herein, Zn is incorporated into<!--> <!-->La<sub>1.2</sub>Sr<sub>0.8</sub>NiO<sub>4+δ</sub> (LSNO) to create additional oxygen vacancies, resultantly developing highly-active<!--> <!-->La<sub>1.2</sub>Sr<sub>0.8</sub>Ni<sub>0.8</sub>Zn<sub>0.2</sub>O<sub>4+δ</sub> (LSNZ) cathode. The cell NiO-BaZr<sub>0.1</sub>Ce<sub>0.7</sub>Y<sub>0.2</sub>O<sub>3-δ</sub>| BaZr<sub>0.1</sub>Ce<sub>0.7</sub>Y<sub>0.2</sub>O<sub>3-δ</sub>|LSNZ achieves an outstanding power density of 1330 mW cm<sup>−2</sup> with the polarization resistance of 0.081 Ω cm<sup>2</sup> at 700 °C, significantly surpassing not only LSNO-based cell but also previously reported Ln<sub>2</sub>NiO<sub>4</sub>-based cathodes. This remarkable performance is attributed to the enhanced oxygen migration and protonation of LSNZ, as confirmed by electrical conductivity relaxation measurements, which facilitate faster electrode reaction kinetics. Combining the superior power output, excellent polarization properties, and robust durability, LSNZ emerges as a highly competitive cathode candidate for<!--> <!-->protonic ceramic fuel cells. This work demonstrates the effectiveness of<!--> <!-->Zn-doping<!--> <!-->in modifying B-site atomic environment of K<sub>2</sub>NiF<sub>4</sub>-related structures to design high-performance electrode materials, offering valuable insights for advancing electrocatalytic material design in related fields.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118255"},"PeriodicalIF":3.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746915","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-entropy oxide reinforced HDPE polymer composite: A novel approach to gamma-ray shielding
IF 3.9 3区 材料科学
Materials Science and Engineering: B Pub Date : 2025-03-31 DOI: 10.1016/j.mseb.2025.118262
Sidharth S Menon , S. Arshia , Amarnath Pasupathi , Arun Prasath Ramaswamy , Karunakara Naregundi , Yashodhara Indaje , Arvind Kumar Yogi , Yugeswaran Subramaniam
{"title":"High-entropy oxide reinforced HDPE polymer composite: A novel approach to gamma-ray shielding","authors":"Sidharth S Menon ,&nbsp;S. Arshia ,&nbsp;Amarnath Pasupathi ,&nbsp;Arun Prasath Ramaswamy ,&nbsp;Karunakara Naregundi ,&nbsp;Yashodhara Indaje ,&nbsp;Arvind Kumar Yogi ,&nbsp;Yugeswaran Subramaniam","doi":"10.1016/j.mseb.2025.118262","DOIUrl":"10.1016/j.mseb.2025.118262","url":null,"abstract":"<div><div>This study aims to synthesize high entropy oxide (HEO) nanoparticles reinforced high density polyethylene (HDPE) composites for effective gamma-ray shielding application. For this purpose, a phase-pure (La<sub>0</sub>.<sub>5</sub>Gd<sub>0.5</sub>Ce<sub>0</sub>.<sub>5</sub>Y<sub>0</sub>.<sub>5</sub>)<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> HEO nanoparticles were produced through thermal plasma technique. As-synthesized HEO nanoparticles in pyrochlore structure, exhibit excellent thermal stability and structural integrity when annealed at 800 °C. The composites were prepared by adding different weight percentages (5, 10, 15, and 20 wt%) of as-synthesized HEO nanoparticles with HDPE matrix and studied their phase, microstructure, and mechanical properties. Backscattering and transmission experiments were conducted using various gamma radiation sources <sup>54</sup>Mn (835 keV), <sup>60</sup>Co (1170 keV), and <sup>60</sup>Co (1330 keV) to evaluate the radiation shielding parameters. The results indicate that increasing the weight percentage of HEO in the HDPE composite matrix leads to enhances the linear attenuation coefficient (LAC) irrespective of incident gamma radiation energy. In contrast, the half-value layer (HVL) and tenth-value layer (TVL) values of the composites decrease as the weight percentage of HEO increases in the HDPE matrix. The HDPE composite reinforced with 20 wt% HEO demonstrated superior radiation attenuation and enhanced mechanical stability compared to composites with lower HEO concentrations. It exhibited significantly improved gamma-ray shielding over pristine HDPE, reducing TVL from 37.13 cm to 16.68 cm and HVL from 11.32 cm to 5.02 cm at 835 keV photon energy. At 1330 keV, the composite achieved a 45 % reduction in HVL, a 44 % reduction in TVL, and a threefold increase in LAC.</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"318 ","pages":"Article 118262"},"PeriodicalIF":3.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739829","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
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