材料科学最新文献

{"title":"Janus MoSSe Nanotubes on 1D SWCNT-BNNT van der Waals Heterostructure","authors":"Chunxia Yang, Qingyun Lin, Yuta Sato, Yanlin Gao, Yongjia Zheng, Tianyu Wang, Yicheng Ma, Wanyu Dai, Wenbin Li, Mina Maruyama, Susumu Okada, Kazu Suenaga, Shigeo Maruyama, Rong Xiang","doi":"10.1002/smll.202412454","DOIUrl":"https://doi.org/10.1002/smll.202412454","url":null,"abstract":"Two-dimensional (2D) Janus transition metal dichalcogenide (TMDC) layers with broken mirror symmetry exhibit giant Rashba splitting and unique excitonic behavior. For their one-dimensional (1D) counterparts, the Janus nanotubes possess curvature, which introduces an additional degree of freedom to break the structural symmetry. This can potentially enhance these effects or even give rise to novel properties. Moreover, Janus MSSe nanotubes (M = W, Mo), with diameters surpassing 40 Å and Se positioned externally consistently demonstrate lower energy states compared to their Janus monolayer counterparts. However, there are limited studies on the preparation of Janus nanotubes, due to the synthesis challenge and limited sample quality. In this study, we first synthesized MoS₂ nanotubes on single-walled carbon nanotube (SWCNT) and boron nitride nanotube (BNNT) heterostructures and then explored the growth of Janus MoSSe nanotubes from MoS₂ nanotubes at room temperature with the assistance of H₂ plasma. The successful formation of the Janus structure is confirmed by Raman spectroscopy, and atomic structure and elemental distribution of the grown samples are further characterized by advanced electronic microscopy. The synthesis of Janus MoSSe nanotubes based on SWCNT-BNNT heterostructures paves the way for further exploration of novel properties in Janus TMDC nanotubes.","PeriodicalId":228,"journal":{"name":"Small","volume":"183 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Membrane Contamination-Driven Sulfonate Structuring for Enhanced Stability in All-Iron Redox Flow Batteries","authors":"Xusheng Cheng, Tao Xuan, Jianchi Wang, Haoran Hu, Duoyong Zhang, JianTao Zai, Liwei Wang","doi":"10.1016/j.ensm.2025.104226","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104226","url":null,"abstract":"All-soluble all-iron redox flow batteries are considered a promising long-duration, large-scale energy storage technology due to their fully decoupled energy and power design and low-cost active materials. However, the anode requires chelating ligands with electron-donating capabilities to establish a potential difference with ferrocyanide, but ligand crossover results in their oxidation, which subsequently causes failure and restricts stable operation. This work proposes a method based on K⁺-induced aggregation of sulfonate groups in perfluorosulfonic acid membranes, eliminating the need for additional additives. By cycling the membrane through the flow battery process, the barrier effect against anode ligands is enhanced, enabling stable cycling for 3227 cycles at 80 mA/cm² and ensuring long-term stability. Molecular dynamics simulations and cross-membrane diffusion experiments reveal the impact of different metal cations on the morphology of water channels in the membranes. A Na⁺-exchange membrane treated with K⁺ from the electrolyte achieves a high average energy efficiency of 73.4%, maintaining battery stability. This work provides a simple yet effective strategy to improve the stability of all-soluble all-iron redox flow batteries. By uncovering the underlying microscopic mechanisms through simulations, it paves the way for the practical implementation of this technology in large-scale energy storage systems.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"58 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Demonstration of Vertically Stacked ZnO/Te Complementary Field-Effect Transistor","authors":"Kiyung Kim, Minjae Kim, Yongsu Lee, Hae-Won Lee, Jae Hyeon Jun, Jun-Hyeok Choi, Seongbeen Yoon, Hyeon-Jun Hwang, Byoung Hun Lee","doi":"10.1002/aelm.202500031","DOIUrl":"https://doi.org/10.1002/aelm.202500031","url":null,"abstract":"The complementary field-effect transistor (CFET) structure is a highly area-efficient technology. However, their fabrication entails highly complex integration processes using wafer transfer or recrystallization, which has been limiting further development. In this paper, an alternative method is proposed to realize CFETs using p-type tellurium (Te) (for the lower-level channel) and n-type zinc oxide (ZnO) (for the upper-level channel). Te and ZnO are directly deposited on a 30 × 30 mm² SiO₂/Silicon substrate, using a considerably low-temperature fabrication process (&lt;150 °C). The lower p-type channel exhibits superior mobility exceeding 10 cm² V⁻¹ s⁻¹ even after the integration of the entire CFET process. The CFET inverter demonstrates a voltage gain &gt;51 at <i>V</i>_DD = 4 V and noise margins of 0.36 and 0.45 V at <i>V</i>_DD = 1 V. Using the same integration process, functional NAND and NOR logic gates are successfully demonstrated in the vertically integrated CFET structure. The proposed ZnO/Te CFET can be a promising device technology, particularly for 3D and heterojunction integration requiring a low thermal budget.","PeriodicalId":110,"journal":{"name":"Advanced Electronic Materials","volume":"23 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A review on all-atom force fields capabilities to predict polymer properties: Case of poly(methyl methacrylate) and polyisobutylene polymer systems","authors":"R.L. Nkepsu Mbitou,&nbsp;F. Bedoui","doi":"10.1016/j.commatsci.2025.113861","DOIUrl":"10.1016/j.commatsci.2025.113861","url":null,"abstract":"<div><div>The strategy of this review is to list and discuss the most commonly used Class I and Class II atomistic force fields. The corresponding force-field parameters are detailed, and the functional form difference is mentioned in terms of each generation of the force field. The validity of each force field was checked by comparing the simulated properties values of two polymer test cases, with their experimental values. It was observed that Class II force fields are more convenient for predicting the thermomechanical properties of amorphous polymer systems, and they could be good candidates for molecular simulations of polymers reinforced by nanoparticles.</div></div>","PeriodicalId":10650,"journal":{"name":"Computational Materials Science","volume":"253 ","pages":"Article 113861"},"PeriodicalIF":3.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revealing the mechanism for enhancing the creep property by adding Ta/Zr elements in RAFM steel: Experimental and modeling study","authors":"Xiangyu Xie ,&nbsp;Chunliang Mao ,&nbsp;Chenxi Liu ,&nbsp;Junting Luo ,&nbsp;Yongchang Liu","doi":"10.1016/j.ijplas.2025.104313","DOIUrl":"10.1016/j.ijplas.2025.104313","url":null,"abstract":"<div><div>A continuum damage mechanics (CDM) creep model was developed based on the microstructure, which could precisely delineate the evolution of mobile dislocations, dipole dislocations, boundary dislocations, and martensitic laths in the RAFM steel during creep process. The addition of Ta/Zr elements promoted the precipitation of MX carbide particles, which could pin the mobile dislocations, and restrain the transformation of mobile dislocations into dipole dislocations, thereby slowing the decrease in statistically stored dislocation (SSD) density during creep. A large number of fine MX and M₂₃C₆ carbide particles sourcing from the addition of Ta/Zr elements could effectively delay the reduction in geometrically necessary dislocation (GND) density, and restrict GNDs transforming into sub-grain boundaries. By manipulating single-factor variables, the increase in precipitate damage factors strongly affected the steady creep stage and accelerated creep stage, especially for the precipitate damage factor of M₂₃C₆, which significantly accelerates the onset of the accelerated creep stage. The higher coarsening rate of M₂₃C₆ in RAFM steel without Ta/Zr was one of the reasons for its premature creep failure, as comparing with RAFM steel with Ta/Zr. During short-term (&lt; 1000 h) creep, fine Laves phase functions similarly to M₂₃C₆ particles, serving the purpose of precipitation strengthening. In the intermediate-term (&lt; 10,000 h) creep process, the Laves phase undergoes a certain degree of coarsening, but the coarsening-induced cavities damage is still not the primary cause of creep fracture. Thus, it was inferred that the depletion of W elements in the matrix sourcing from the coarsening of Laves phase is the main reason for the premature creep failure. In the intermediate-term creep of RAFM steel, the ability of Ta/Zr elements to significantly reduce the coarsening rate of Laves is a key factor for contributing to the significant extension of creep rupture time for RAFM steel.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"188 ","pages":"Article 104313"},"PeriodicalIF":9.4,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"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⁻¹ and 162 nm·min⁻¹, 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}

{"title":"Unveiling the durability, friction, and wear behaviour of nanodiamond composite films deposited on biased cemented carbide with varying Al interlayer thickness","authors":"Mohamed Ragab Diab ,&nbsp;Koki Murasawa ,&nbsp;Mei Wang ,&nbsp;Shinya Ohmagari ,&nbsp;Hiroshi Naragino ,&nbsp;Tsuyoshi Yoshitake ,&nbsp;Mohamed Egiza","doi":"10.1016/j.surfin.2025.106367","DOIUrl":"10.1016/j.surfin.2025.106367","url":null,"abstract":"<div><div>Nanodiamond composite (NDC) films were deposited on biased cemented carbide (WC−6 wt. % Co) substrates using a coaxial arc plasma deposition technique, incorporating sputtered aluminium (Al) interlayers with varying thicknesses (0,50, 100, 300, and 500 nm). This study systematically investigates the durability, friction, and wear behaviour of NDC films, focusing on optimizing Al interlayer thickness to enhance performance in dry and harsh machining conditions. The primary objective was to mitigate interfacial catalytic reactions, particularly Co-induced graphitization, which adversely affect adhesion and mechanical integrity. Experimental findings identified a 100 nm Al interlayer as the optimal configuration, forming a protective Al₂O₃ layer that effectively suppressed graphitization. This resulted in significant improvements in coating performance, including a 79 % increase in adhesion strength, as indicated by a critical load of 17 N for full spallation during scratch testing, and a 62 % enhancement in wear resistance, yielding a wear rate of 7.85 × 10⁻⁸ mm³/N.m. Simultaneously, the coefficient of friction (COF) decreased by 71 % compared to the uncoated substrate, maintaining a stable value of 0.09 during dry sliding tests against a rough Al₂O₃ counterpart. The exceptional tribological performance of the optimized NDC coatings is attributed to multiple factors. The refined nanostructure, featuring a dense grain boundary network, facilitated the formation of a lubricating graphitic layer, contributing to low and stable friction. Additionally, the high hardness (75 GPa) and Young's modulus (724 GPa) provided superior wear resistance and load-bearing capacity. These results underscore the potential of Al interlayers to significantly enhance the tribological performance of NDC coatings. However, the improvements in durability remain limited by the low adhesion strength, which remains a critical factor for cutting tools operating under dry machining conditions.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"63 ","pages":"Article 106367"},"PeriodicalIF":5.7,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Protic Ionic Liquids: A General Strategy for Enhancing Electrical Conductivity and Stretchability of Conducting Polymer Thin Films (Adv. Funct. Mater. 14/2025)","authors":"Kyungjin Kim,&nbsp;Minwoo Han,&nbsp;Hyungju Ahn,&nbsp;Minji Kim,&nbsp;Jiyun Noh,&nbsp;Eunseo Noh,&nbsp;Haemin Choi,&nbsp;Seoung Ho Lee,&nbsp;Byoung Hoon Lee","doi":"10.1002/adfm.202570079","DOIUrl":"https://doi.org/10.1002/adfm.202570079","url":null,"abstract":"<p><b>Protic Ionic Liquids</b></p><p>In article number 2420607, Seoung Ho Lee, Byoung Hoon Lee, and co-workers develop strain sensors with a wide dynamic range using PEDOT:PSS-based stretchable transparent conductors, which demonstrate both controlled and enhanced electrical conductivity and stretchability. These properties are tuned through the use of protic ionic liquids with varying alkyl chains, which outperform conventional aprotic ionic liquids due to the formation of well-ordered crystalline PEDOT domains and hydrogen bonding interactions with PEDOT:PSS.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"35 14","pages":""},"PeriodicalIF":18.5,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adfm.202570079","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rare earth-doped CuAl2O4 catalysts with superior catalytic performance for methanol steam reforming","authors":"Moyu Liao, Qiling Duan, Ruofei Xiang, Xinyu Tan, Zhongxu Dai, Hang Qin, Hanning Xiao","doi":"10.1016/j.jallcom.2025.180229","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180229","url":null,"abstract":"To develop efficient catalyst for methanol steam reforming, Ce, Pr, and La-doped CuAl₂O₄ spinel composite catalysts were prepared using a one-step sol-gel method. The impact of rare earth promoter on the physicochemical properties and catalytic performance of CuAl₂O₄ spinel was investigated through various characterizations. Results indicated that the three rare earth-doped CuAl₂O₄ spinels demonstrated higher activity than the undoped CuAl₂O₄ spinel. Among them, the La-doped CuAl₂O₄ spinel showed the highest methanol conversion and hydrogen production rate, the lowest CO selectivity, and the best long-term stability. The La-doped CuAl₂O₄ spinel possessed superior physicochemical characteristics, such as small grain size, uniform elemental distribution, low band-gap energy, appropriate reducibility, strong alkalinity, and favorable surface chemical state. The present work suggested La-promoted CuAl₂O₄ spinel as a efficient candidate for methanol steam reforming catalyst.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"62 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Glassy disordered ground states in the frustrated pyrochlore and fluorite antiferromagnets NaCdM2F7 (M = Ni2+, Mn2+)","authors":"Andrej Kancko, Cinthia Antunes Corrêa, Ross Harvey Colman","doi":"10.1016/j.jallcom.2025.180142","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180142","url":null,"abstract":"We report the crystal structures, magnetic and thermodynamic properties of two magnetically frustrated <em>A</em>’<em>A</em>”<em>M</em>₂F₇ -type antiferromagnets, NaCdNi₂F₇ and NaCdMn₂F₇. While NaCdNi₂F₇ forms a stable pyrochlore structure (SG: <em>Fd-3m</em>, #227) with magnetic <em>S</em> = 1 Ni²⁺ ions on the frustrated pyrochlore 16<em>c</em> site and fully disordered non-magnetic Na⁺/Cd²⁺ ions on the pyrochlore 16<em>d</em> site, NaCdMn₂F₇ favors the <em>defect</em>-fluorite structure (SG: <em>Fm-3m</em>, #225) with magnetic <em>S</em> = 5/2 Mn²⁺ and non-magnetic Na⁺ and Cd²⁺ ions fully disordered on the fluorite 4<em>a</em> site. This is a result of the Mn²⁺ ionic radius being too close to the average Na⁺/Cd²⁺ ionic radius, hindering the cationic site ordering towards the stable pyrochlore structure. In both cases, dominant antiferromagnetic interactions θ_CW,Ni = -91.2(5) K and θ_CW,Mn = -42.4(4) K are noted, with no magnetic transition until <em>T</em>_f,Ni = 3.2<!-- --> <!-- -->K and <em>T</em>_f,Mn = 2.0<!-- --> <!-- -->K, implying substantial frustration, with frustration indices <em>f</em>_Ni = 28.5 and <em>f</em>_Mn = 21. AC susceptibility measurements and bifurcation of ZFC/FC low-field magnetization indicate a spin-glass-like ground-state, precipitated by the magnetic-bond-disorder stemming from the inherent structural disorder.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"107 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}