Journal of Alloys and Compounds最新文献

Multifunctional micro-arc oxidation coatings on VW75 magnesium alloy: Synergistic enhancement of corrosion resistance and mold inhibition with Ta2O5@ATO hybrid nanostructures VW75镁合金上的多功能微弧氧化涂层：与Ta2O5@ATO杂化纳米结构协同增强耐蚀性和抑霉性

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-17 DOI: 10.1016/j.jallcom.2025.180986

Ran Wei, Quantong Jiang, Dongxiao Han, Ye Chen, Wanpeng Liu, Yantong Pei, Chen Li, Jizhou Duan, Baorong Hou

{"title":"Multifunctional micro-arc oxidation coatings on VW75 magnesium alloy: Synergistic enhancement of corrosion resistance and mold inhibition with Ta2O5@ATO hybrid nanostructures","authors":"Ran Wei, Quantong Jiang, Dongxiao Han, Ye Chen, Wanpeng Liu, Yantong Pei, Chen Li, Jizhou Duan, Baorong Hou","doi":"10.1016/j.jallcom.2025.180986","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180986","url":null,"abstract":"Micro-arc oxidation (MAO) coatings were successfully developed on rare-earth magnesium alloys through the incorporation of tantalic oxide (Ta<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">5</ce:inf>) and varying concentrations of antimony-doped tin oxide (ATO) nanoparticles into the electrolyte. Comprehensive analyses were conducted to investigate the coatings' thickness, microstructure, and chemical composition. Furthermore, the coatings were subjected to extensive evaluations of their corrosion resistance, hydrothermal stability, and resistance to mold growth. The experimental findings demonstrated that the primary crystalline phases within the Ta<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">5</ce:inf>@ATO composite coatings were MgO and Ta<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">5</ce:inf>. The introduction of ATO nanoparticles into the electrolyte played a pivotal role in enhancing the coating's thickness and densification, which, in turn, led to marked improvements in hydrophobic stability. Among the various concentrations tested, a nanoparticle concentration of 3 g/L was identified as the optimal level for achieving superior corrosion resistance and hydrothermal stability in the Ta<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">5</ce:inf>@ATO composite coatings. Additionally, the composite coatings exhibited pronounced mold resistance properties, demonstrating significant resistance to mold growth under tested conditions. These results highlight the potential of Ta<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">5</ce:inf>@ATO composite coatings as a multifunctional surface modification strategy for rare-earth magnesium alloys in challenging environments.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"43 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144066584","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}

引用次数: 0

Room-Temperature NO₂ Sensors Based on UV-Assisted Pt Functionalized MoS₂-MoTe₂ Heterostructures 基于uv辅助Pt功能化MoS 2 -MoTe 2异质结构的室温NO 2传感器

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-17 DOI: 10.1016/j.jallcom.2025.181004

Shraddha Hambir, Sithara Radhakrishnan, Chandra Sekhar Rout, Shweta Jagtap

{"title":"Room-Temperature NO₂ Sensors Based on UV-Assisted Pt Functionalized MoS₂-MoTe₂ Heterostructures","authors":"Shraddha Hambir, Sithara Radhakrishnan, Chandra Sekhar Rout, Shweta Jagtap","doi":"10.1016/j.jallcom.2025.181004","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.181004","url":null,"abstract":"Nitrogen dioxide (NO₂), a harmful air pollutant, poses severe risks to health and the environment, requiring efficient detection technologies. Transition metal dichalcogenides (TMDs) like MoS₂ and MoTe₂, with their excellent electronic properties and high gas response, are promising candidates for sensing applications. In this study, MoS₂-MoTe₂ heterostructures were synthesized via a hydrothermal method followed by functionalization with platinum (Pt) using a post-synthesis impregnation technique. The study revealed that 2 wt.% Pt-functionalized MoS₂-MoTe₂ heterostructures demonstrated exceptional NO₂ sensing performance at room temperature, achieving a remarkable sensor response (Ra/Rg) of 9.58 for 5 ppm NO₂ under UV irradiation, with significantly faster response/recovery times of 21/99 seconds. To the best of our knowledge, detailed report on Pt-functionalized MoS₂-MoTe₂ heterostructures for NO₂ gas sensing is not available. This performance enhancement is attributed to strain-induced modifications in the phonon structure caused by Pt functionalization, as observed in XRD and Raman analysis, which led to improved charge transfer and adsorption properties. Furthermore, UV irradiation played a pivotal role by not only generating additional charge carriers but also activating photocatalytic processes, thereby improving the desorption of gas molecules and enhancing the response-recovery dynamics. This innovative approach holds promise for a significant breakthrough in the development of highly efficient 2D-material-based gas sensors.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"127 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067337","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}

引用次数: 0

Nanoarchitectonics with thiolate protected ultrasmall platinum nanoclusters embedded on ionic liquid matrix for enhanced supercapacitance 嵌入在离子液体基质上的巯基酸保护的超小铂纳米团簇的纳米结构，以增强超级电容

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-17 DOI: 10.1016/j.jallcom.2025.181018

Khaja Moinudeen Sithar Shahul, Prabhu Pandurangan

{"title":"Nanoarchitectonics with thiolate protected ultrasmall platinum nanoclusters embedded on ionic liquid matrix for enhanced supercapacitance","authors":"Khaja Moinudeen Sithar Shahul, Prabhu Pandurangan","doi":"10.1016/j.jallcom.2025.181018","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.181018","url":null,"abstract":"Herein, we report the synthesis of ultrasmall platinum nanoclusters (Pt-NCs) protected with three different thiols via the chemical reduction method. The varying functionality of these thiols (3-mercapto propane sulfonate (MPS), 3-mercapto propionic acid (MPA) and glutathione (GSH)) in as prepared Pt-MPS, Pt-MPA & Pt-GSH NCs were confirmed using UV-Vis, FTIR, XRD and DLS. The HR-TEM results proved the nanocluster size range for all the three Pt-NCs. The supercapacitance behavior of the three Pt-NCs were boosted by embedding them with a room temperature ionic liquid i.e, an imidazolinium salt (1-decyl-3-methyl imidazolinium salt) as a stable matrix. The ultrasmall nanocluster composition of Pt-MPS NCs, resulted higher redox peak currents at 0.404 V in the scan rate of 50 mV/s than the other two Pt-NCs (Pt-MPA NCs at 0.39 V and Pt-GSH NCs at 0.39 V vs Ag/AgCl respectively). The specific capacitance (Cs) of Pt-MPS, Pt-MPA and Pt-GSH NCs were found to be 805.56, 772.72 and 621.16 Fg-1 at the current density of 1 Ag-1. These ultrasmall Pt NCs (Pt-MPS, Pt-MPA and Pt-GSH) embedded with ionic liquid matrix established higher stability, boasting the supercapacitance of Pt NCs which is superior to reported Pt based materials.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"16 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067339","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}

引用次数: 0

Microstructure and tribological performance of FeCrNiMox medium-entropy alloy (MEA) coatings by high-speed laser cladding: Effect of molybdenum content 高速激光熔覆FeCrNiMox中熵合金（MEA）涂层的显微组织和摩擦学性能：钼含量的影响

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-16 DOI: 10.1016/j.jallcom.2025.181001

Bingyan Duan, Naiming Lin, Haichao Zhao, Li Zhou, Xin Wang, Guozheng Ma, Haidou Wang, Quanxin Shi, Yucheng Wu

引用次数: 0

Effect of solidification structure on the microstructure and the mechanical properties of 7050 aluminum alloy sheet 凝固组织对7050铝合金薄板组织和力学性能的影响

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-16 DOI: 10.1016/j.jallcom.2025.181005

Xudong Liu, De Li, Duo Zhang, Xuexin Pan, Ying zhang, Yubo Zuo, Haichang Jiang

{"title":"Effect of solidification structure on the microstructure and the mechanical properties of 7050 aluminum alloy sheet","authors":"Xudong Liu, De Li, Duo Zhang, Xuexin Pan, Ying zhang, Yubo Zuo, Haichang Jiang","doi":"10.1016/j.jallcom.2025.181005","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.181005","url":null,"abstract":"Lightweight and high-strength 7xxx aluminum alloy has long been the preferred material in aircraft, high-speed railways, and other fields. In the present study, the influence of solidification structure on the microstructure and mechanical properties of aged sheets was investigated. To achieve this objective, firstly, ingots with different grain sizes, dendrite arm spacings, and crystalline phase sizes were prepared with different casting conditions. Then, the microstructure of the aged sheets was systematically characterized and the tensile properties were examined. The results indicate that the number density and area fraction of precipitates of sheets prepared by ingots with coarser grains, finer dendritic arms, and finer crystalline phases are greater than those prepared by ingots with finer grains, coarser dendritic arms, and coarser crystalline phases. As a result, the ultimate tensile strength, and the yield strength of the aged sheet prepared by ingots with coarser grains, finer dendritic arms, and finer crystalline phases are 38 MPa and 39 MPa higher than that of the aged sheet prepared by ingots with finer grains, coarser dendritic arms, and coarser crystalline phases. In addition, sheets produced using ingots with fine crystalline phases exhibited finer residual phases, which results in a better ductility of the sheet. Moreover, compared with the ingot grain size, the amount and size of residual coarse phases play a more important role in determining the grain size of the sheet.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"6 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144066588","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}

引用次数: 0

Metal-Air Batteries: From Fundamental Mechanisms to Practical Applications 金属-空气电池：从基本机制到实际应用

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-16 DOI: 10.1016/j.jallcom.2025.180805

Prachi Soumya Rai, Chhaya Ravi Kant, Ranjana Jha

{"title":"Metal-Air Batteries: From Fundamental Mechanisms to Practical Applications","authors":"Prachi Soumya Rai, Chhaya Ravi Kant, Ranjana Jha","doi":"10.1016/j.jallcom.2025.180805","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.180805","url":null,"abstract":"Metal–air batteries (MABs) have attracted significant attention as next-generation energy storage systems due to their high theoretical energy densities, lightweight designs, and potential cost-effectiveness. This review presents a comprehensive analysis of MAB systems, focusing on lithium–air, sodium–air, magnesium–air, zinc–air, and aluminium–air batteries. Key contributions include a detailed discussion of nanomaterial advancements for cathode and anode development, the role of bifunctional catalysts for enhancing oxygen reduction and evolution reactions (ORR/OER), and the emerging integration of artificial intelligence (AI) for material optimization and predictive modeling. The major limitations of MABs, such as sluggish reaction kinetics, electrode passivation, electrolyte instability, and poor rechargeability, are critically analyzed, highlighting their impact on practical performance. Comparative evaluations of thermodynamics, electrochemical properties, and material strategies in this review help in the identification of pathways to overcome these bottlenecks. Practical implications for real-world applications are discussed, emphasizing the need for stable catalysts, protected anode designs, novel electrolyte systems, and sustainable recycling processes. The future outlook suggests that interdisciplinary innovation combining material science, electrochemistry, AI-driven modeling, and scalable engineering will be pivotal for advancing MAB technologies toward commercialization and contributing to a sustainable energy future.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067348","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}

引用次数: 0

Corrigendum to “Molten salt electrolytic CO2-derived NiCo2@C catalysts with enhanced oxygen evolution reaction” [J. Alloy. Compd. 1010 (2025) 176950] 熔盐电解co2衍生NiCo2@C催化剂与增强析氧反应的勘误表[J]。合金。Compd. 1010 (2025) 176950]

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-16 DOI: 10.1016/j.jallcom.2025.180897

Xinxin Liang, Yihan Wang, Yi Zheng, Ronghan Wang, Xiaodong Jia, Wei Weng, Jianbo Zhao, Wei Xiao

引用次数: 0

Enhanced the Electrochemical Performance in Sr-doped LaCoO3 Nanofibers 增强了sr掺杂LaCoO3纳米纤维的电化学性能

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-16 DOI: 10.1016/j.jallcom.2025.181003

Xu Guo, Zixuan Tian, Jingchen Qu, Xin Ye, Lei Wang, Yamei Zhang, Songtao Dong, Hongbo Ju

引用次数: 0

The Effect of substitution Cu for Zn on the dominant active slip systems and deformation mechanism in Mg-Zn-Y Alloys Cu取代Zn对Mg-Zn-Y合金主动滑移体系及变形机制的影响

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-16 DOI: 10.1016/j.jallcom.2025.181002

Junda Jin, Xin Long, Guoqiang Xi, Rongsong Xiao, Jiakun Ou, Mingtao Mei, Yuanfang Chen

{"title":"The Effect of substitution Cu for Zn on the dominant active slip systems and deformation mechanism in Mg-Zn-Y Alloys","authors":"Junda Jin, Xin Long, Guoqiang Xi, Rongsong Xiao, Jiakun Ou, Mingtao Mei, Yuanfang Chen","doi":"10.1016/j.jallcom.2025.181002","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.181002","url":null,"abstract":"Microstructure evolution and Visco-Plastic Self-Consistent (VPSC) simulations are adopted to explore alloying elements Zn and Cu proportion effect on room mechanical characteristics of as-extruded Mg95Y3Zn2, Mg95Y3Zn1Cu1, and Mg95Y3Cu2 alloys (at%) at present. The findings indicate that the strength of the alloy gradually enhances as the Cu/Zn ratio increases, while compared with the alloy without Cu, the plasticity of the Cu-containing alloy slightly decreases. Mg95Y3Cu2 alloy shows a better strength-plasticity matching relationship, with its yield strength, tensile strength and elongation being 284 MPa, 340 MPa and 16.2%, respectively. Combining EBSD-aided slip trace analysis and VPSC simulation, the mechanism of the slight decrease in plasticity of is Mg95Y3Cu2 alloy resulted from the joint effect of deformation mode and grain characteristics. Furthermore, theoretical calculations indicate that compared with Mg95Y3Zn2 and Mg95Y3Zn1Cu1 alloys, the higher strength of Mg95Y3Cu2 alloy is mainly attributed to the effects of fine grain strengthening and LPSO phase strengthening.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"12 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144067346","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}

引用次数: 0

One-Pot preparation of recyclable in-situ-generated nano Cu-loaded on Ti3C2 MXene for enhancing MgH2 hydrolysis 一锅法制备可回收负载ti3c2mxene纳米cu增强MgH2水解

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-05-16 DOI: 10.1016/j.jallcom.2025.181010

Zeyu Zhang, Jinting Chen, Shuo Liang, Haixiang Huang, Bogu Liu, Xingqing Duan, Yawei Li, Ying Wu

{"title":"One-Pot preparation of recyclable in-situ-generated nano Cu-loaded on Ti3C2 MXene for enhancing MgH2 hydrolysis","authors":"Zeyu Zhang, Jinting Chen, Shuo Liang, Haixiang Huang, Bogu Liu, Xingqing Duan, Yawei Li, Ying Wu","doi":"10.1016/j.jallcom.2025.181010","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.181010","url":null,"abstract":"Hydrogen production by hydrolysis of hydrogen storage materials is of great importance in real-time hydrogen supply, with MgH2 being a promising material for hydrogen production. Nevertheless, the fragmented Mg(OH)2 generated by the hydrolysis of MgH2 encapsulates the reactants, which inhibits both the reaction rate and extent. In this study, in-situ-generated Cu loaded on Ti3C2 MXene (Ti3C2-Cu) was incorporated into MgH2 for the first time by using a simple molten-salt etching method, and it significantly improved the kinetic performance and conversion rate. The MgH2-5 wt% Ti3C2-Cu composite released 1777.1 mL/g H2 within 35 min at 30°C, with a conversion rate of 95%. Moreover, the Ti3C2-Cu catalyst was obtained by simple acid addition and recovery for the first time. The recycled Ti3C2-Cu (Ti3C2-Cu (Re)) catalyst maintains excellent catalytic activity, and the Ti3C2-Cu (Re) used in the 5th cycle catalyzed MgH2 to produced 1732.6 mL/g in 35 min. The density functional theory (DFT) calculation demonstrates that the introduction of the Ti3C2-Cu accelerates the electron transfer between MgH2 and Ti3C2-Cu, and stretches the Mg-H1/H2 bonds. The outstanding hydrolysis performance of the MgH2-Ti3C2-Cu composites is mainly attributed to the layered Ti3C2 acting as a proton exchange channel and the dispersed Cu nanoparticles forming more micro protocells with Mg generated by dehydrogenation. This study provides a new catalyst for enhancing the hydrolysis performance of MgH2 and widens the application of MXene materials.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"145 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144066586","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}

引用次数: 0