IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-09-08 DOI: 10.1016/j.jallcom.2025.183611

Yanran Li, Xu Wang, Di Zhou, Guanjiu Wu, Yuan Li, Lu Zhang, Wenfeng Wang, Shumin Han

{"title":"Effect of Magnesium Permeation on the Performance of Hydrogen Storage Alloys with Regulating Magnesium Content","authors":"Yanran Li, Xu Wang, Di Zhou, Guanjiu Wu, Yuan Li, Lu Zhang, Wenfeng Wang, Shumin Han","doi":"10.1016/j.jallcom.2025.183611","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183611","url":null,"abstract":"RE–Mg–Ni-based alloys are promising candidates for solid-state hydrogen storage. However, magnesium volatilizes severely during the melting process, complicating the control of the chemical composition. In order to accurately control the magnesium content and obtain a stable superlattice structure, this work adopted the magnesium permeation method to prepare La0.33Ce0.10Sm0.30Y0.14Mg0.13Ni3.49Co0.10 alloy and regulate the phase structure. This method effectively confines magnesium volatilization below 3%, ensuring minimal loss under the experimental conditions. X-ray diffraction patterns show the presence of Ce2Ni7 and Gd2Co7 phases in the alloy bulk. The Mg permeation promotes the hydrogen storage capacity up to 1.55 wt.% at 298 K, superior to that of the original alloy (1.26 wt.%), as well as fast hydrogen absorbing kinetics. The cycle stability is greatly enhanced by regulating the phase structure. Throughout 50 repeated hydrogen absorption/desorption cycles, the A2B7-phase keeps unchanged, and the capacity degradation is limited to only 5.3%. This approach offers a reliable route for preparing target composition and specific phase superlattice alloys with excellent hydrogen storage properties.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"31 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009385","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

Prussian blue-derived highly photoactive Ti-doped α-Fe2O3 film with an “imperfect structure” for photoelectrochemical water oxidation 普鲁士蓝衍生的具有“不完美结构”的高光活性ti掺杂α-Fe2O3薄膜用于光电化学水氧化

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-09-08 DOI: 10.1016/j.jallcom.2025.183616

Fang Xu, Yuanyuan Zhao, Chunyu Yang, Dandan Xu

{"title":"Prussian blue-derived highly photoactive Ti-doped α-Fe2O3 film with an “imperfect structure” for photoelectrochemical water oxidation","authors":"Fang Xu, Yuanyuan Zhao, Chunyu Yang, Dandan Xu","doi":"10.1016/j.jallcom.2025.183616","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183616","url":null,"abstract":"The sustainable production of hydrogen by photoelectrochemical water splitting using hematite (α-Fe2O3) is a promising solar chemical storage method. It is critical to achieve efficient PEC water oxidation performance of semiconductor photoanode materials, especially for nanostructured photoanode materials with large surface areas. The nanostructure engineering has demonstrated considerable potential for improving the performance of iron oxide, but the ideal nanostructure that can achieve high efficiency for all wavelengths of absorbed light is still elusive. Here, we report a titanium-doped porous hematite photoanode obtained by calcinating Ti-doped Prussian blue as precursor, which yields a photocurrent density of 1.58 mA·cm-2 under standard conditions (AM 1.5 G 100 mW·cm-2, 0.23 V vs. Ag/AgCl), which is 27 times that of the original Fe2O3 nanoporous photoanode. It is also found that iron oxide, like many small boats with porous structure, is located in the FTO sea, which is due to the disappearance of cyanide ligands after high-temperature treatment, resulting in a significant reduction in the volume of Prussian blue blocks. X-ray photoelectron spectroscopy and elemental map measurements prove that titanium is uniformly doped into iron oxide and Ti4+ displaces Fe3+ ion in the iron oxide lattice. The Ti (220 μL)-Fe2O3 photoanode has a charge transfer resistance value of 60.03 Ω at the semiconductor/liquid interface and 843.8 Ω in the bulk, which are 80 and 2.7 times lower than that of the original α-Fe2O3, respectively. The enhancement of photoelectrochemical activity of the Ti-doped α-Fe2O3 photoanode is attributed to reduction of the resistance in bulk and at the semiconductor/liquid junction caused by titanium doping and porous structure.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"20 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009386","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

Effect of niobium content on microstructural evolution and mechanical behavior of Alloy 625 Plus 铌含量对625 Plus合金组织演变及力学行为的影响

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-09-08 DOI: 10.1016/j.jallcom.2025.183612

Shuyang Du, Yanwu Dong, Zhouhua Jiang, Yukuan Fan, Yong Wang, Fei Peng

引用次数: 0

Magnetic and Optical Properties of amorphous carbon-supported rock salt-type NiCo2(O,F)3 solid-solution nanorods 无定形碳负载岩盐型NiCo2(O，F)3固溶体纳米棒的磁性和光学性质

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-09-08 DOI: 10.1016/j.jallcom.2025.183638

Aslam Hossain, Zhengyou Li, Alexander V. Soldatov, A.M.A. Henaish, D.E. El Refaay

{"title":"Magnetic and Optical Properties of amorphous carbon-supported rock salt-type NiCo2(O,F)3 solid-solution nanorods ","authors":"Aslam Hossain, Zhengyou Li, Alexander V. Soldatov, A.M.A. Henaish, D.E. El Refaay","doi":"10.1016/j.jallcom.2025.183638","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183638","url":null,"abstract":"Nonmetal elements can greatly alter their electronic mobility and band gap when doped into oxide lattice. This modification enhances the structural integrity, optical characteristics, and magnetic properties of materials. This study investigates carbon-supported rock salt-type hybrid NiCo2(O,F)3 nanorods synthesized using a two-step method to explore their structural, morphological, optical, and magnetic properties. Elemental analysis reveals the incorporation of amorphous carbon and F into the material, achieved through the co-precursor. Structural analysis reveals a Co2-xNixO3 phase based solid solution without phase-segregation into CoO and NiO. Optical study indicates broad absorption in the visible region, attributed to the synergy between the Co/Ni-O lattice and carbon support, while the bandgap values are significantly influenced by F concentration. Specifically, F doping modifies the ligand field and introduces localized lattice distortions that lead to a reduction in the bandgap energy and enhancement of visible light absorption. Magnetic characterization using First-Order-Reversal-Curve analysis reveals distinct coercivity and bias field distributions influenced by the carbon and F content. Carbon incorporation contributes to increased structural disorder and acts as a non-magnetic matrix that modulates interparticle magnetic coupling and domain wall pinning effects, enhancing coercivity. These effects demonstrate how dual non-metallic doping synergistically tunes both optical and magnetic properties through complementary structural modifications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"35 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009395","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

Unveiling the dependence of laser energy on ignition critical conditions in TC11 titanium alloy under high temperature airflow 揭示了TC11钛合金在高温气流作用下激光能量对点火临界条件的依赖性

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-09-08 DOI: 10.1016/j.jallcom.2025.183622

Jianjun Li, Peng Xing, Congzheng Wang, Pengfei Jin, Yajun Li, Yuqi Zhang, Yang Wang, Guangyu He, Cheng Zhang, Jinfeng Huang

{"title":"Unveiling the dependence of laser energy on ignition critical conditions in TC11 titanium alloy under high temperature airflow","authors":"Jianjun Li, Peng Xing, Congzheng Wang, Pengfei Jin, Yajun Li, Yuqi Zhang, Yang Wang, Guangyu He, Cheng Zhang, Jinfeng Huang","doi":"10.1016/j.jallcom.2025.183622","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183622","url":null,"abstract":"The high combustion susceptibility of titanium alloys under high pressure and temperature airflow has emerged as a critical factor restricting its application in aeroengines. Herein, the effects of airflow pressure and flow rate on ignition critical conditions of TC11 alloy were systematically investigated by using a laser ignition system. Results showed that the combustion occurs within 2-4 seconds through heating, ignition, and stable combustion stages under laser. Crucially, ignition of TC11 alloy exhibited a strong dependence of laser-power. Below 238 W, the specimen resisted ignition even at temperatures over 1518.7±20.4 K. In contrast, reaching the power threshold led to ignition at 1345.6±23.3 K. Notably, with the increasing ambient pressure, both the critical laser power and ignition temperature further reduced, which followed well with the Frank-Kamenetskii (F-K) theory. According to the modified F-K model, the apparent activation energy (Ea=86.46 kJ/mol) for the ignition of TC11 was merely one-third of the thermal-oxidation activation energy (Eo=231.98 kJ/mol). Furthermore, the post-ignition microstructural evolution showed replacement of the protective oxide layer by dendritic multiphases mainly composed of TiO, α-Ti, β-Ti and TiO2. Such dependence of laser energy on ignition can be explained by the reaction transition shifted from a diffusion-oxidation mechanism to a multi-path reaction process involving peritectic reactions (L+α-Ti→TiO), leading to localized thermal runaway and ignition, induced by the thermal-shock disruption of passivation under high-energy laser stimulation.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"35 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009419","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

HfO2-based thin films and devices 基于hfo2的薄膜和器件

IF 9.4 1区材料科学

Journal of Materiomics Pub Date : 2025-09-08 DOI: 10.1016/j.jmat.2025.101125

Xiaoguang Li, Min Hyuk Park, Ji-Yan Dai, Yuewei Yin

{"title":"HfO2-based thin films and devices","authors":"Xiaoguang Li, Min Hyuk Park, Ji-Yan Dai, Yuewei Yin","doi":"10.1016/j.jmat.2025.101125","DOIUrl":"https://doi.org/10.1016/j.jmat.2025.101125","url":null,"abstract":"HfO2-based thin films and devices have attracted considerable interest owing to their outstanding properties, such as high dielectric constant, robust ferroelectricity, wide bandgap, excellent thermal stability, and full compatibility with complementary metal-oxide-semiconductor (CMOS) processing. As a high-k gate dielectric, HfO2-based films have already replaced SiO2 in certain advanced CMOS technologies, facilitating the development of faster, smaller, and more energy-efficient integrated circuits. In particular, the discovery of ferroelectricity in doped HfO2 thin films in 2011 further established HfO2-based ferroelectrics as promising candidates for next-generation memory technologies [1], [2]. Their advantages are evident: 3D conformable HfO2 films can be deposited by atomic layer deposition (ALD) and crystallized at CMOS-compatible low temperatures, and robust ferroelectricity is maintained at thicknesses <10 nm. These characteristics make them highly suitable for nonvolatile memory, negative-capacitance transistors, etc., offering the prospects of higher speed and lower power consumption for CMOS devices. Hence, industrial progress is also evident: for instance, in 2023, Micron Technology introduced a 32 Gb high-density ferroelectric random-access memory (FeRAM) device based on ferroelectric HfO2, exceeding the ∼16 Mb capacity of commercial perovskite-based FeRAMs and highlighting its scalability [3].","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"52 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009443","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}

引用次数: 0

White Analytical Chemistry-Driven Electroanalytical Strategies for Sustainable Detection of Pharmaceuticals: Design and Applications 白色分析化学驱动的药物可持续检测电分析策略：设计和应用

IF 6.6 3区材料科学

Electrochimica Acta Pub Date : 2025-09-08 DOI: 10.1016/j.electacta.2025.147341

Chaudhery Mustansar Hussain, Ghazanfar Hussain, Özlem Ünlüer, Rüstem Keçili

引用次数: 0

Self-Transformation of 2D SnSe Nanosheets into SnO2/Se Nanocomposites for Efficient Photodetection. 二维SnSe纳米片自转化为SnO2/Se纳米复合材料的高效光电检测。

IF 9.5 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-09-08 DOI: 10.1021/acsami.5c05620

Feng Li,Yule Zhang,Xiaoqing Cai,Qifang Yin,Zuoqi Zhang,Bing Wang,Han Zhang,Wenwen Chen

{"title":"Self-Transformation of 2D SnSe Nanosheets into SnO2/Se Nanocomposites for Efficient Photodetection.","authors":"Feng Li,Yule Zhang,Xiaoqing Cai,Qifang Yin,Zuoqi Zhang,Bing Wang,Han Zhang,Wenwen Chen","doi":"10.1021/acsami.5c05620","DOIUrl":"https://doi.org/10.1021/acsami.5c05620","url":null,"abstract":"The rapid development of liquid exfoliation technology has boosted fundamental research and applications of ultrathin two-dimensional (2D) materials. However, the small-sized exfoliated 2D materials with a high specific surface area may exhibit poor chemical stability. Understanding the stability of 2D crystals will be significant for their preservation and service and for the development of new stable phases via the spontaneous transition from unstable structures. Here, we synthesized SnSe/SnO2/Se and SnO2/Se nanocomposites (NCPs) via an ingenious self-transformation process of 2D SnSe slowly reacting with OH- ions in water. The structure, carrier dynamics, and photodetection performances of the SnSe/SnO2/Se and SnO2/Se NCPs were thoroughly investigated. Owing to the favorable band alignment, fast recombination time, and excellent electron-transport layer of SnO2, the SnO2/Se NCPs exhibited superior photoresponse performance (400 times that of pure SnSe nanosheets). Our findings provide a new basis for the study of the stability of low-dimensional materials in water and will allow the development of water-based applications such as high-performance photoelectrochemical photodetectors, catalysts, and energy-storage devices.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"40 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145008763","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

3D-Printed Flexible Conductive Hydrogel as a Wearable Platform for Dual Functions of Strain and Colorimetric Lactate Sensors. 3d打印柔性导电水凝胶作为可穿戴平台的应变和比色乳酸传感器的双重功能。

IF 9.5 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-09-08 DOI: 10.1021/acsami.5c10251

Natchapat Kearwan,Nadtinan Promphet,Nadnudda Rodthongkum,Voravee P Hoven,Benjaporn Narupai

{"title":"3D-Printed Flexible Conductive Hydrogel as a Wearable Platform for Dual Functions of Strain and Colorimetric Lactate Sensors.","authors":"Natchapat Kearwan,Nadtinan Promphet,Nadnudda Rodthongkum,Voravee P Hoven,Benjaporn Narupai","doi":"10.1021/acsami.5c10251","DOIUrl":"https://doi.org/10.1021/acsami.5c10251","url":null,"abstract":"Strain sensors have received considerable attention in personal healthcare due to their ability to monitor real-time human movement. However, the lack of chemical sensing capabilities in existing strain sensors limits their utility for continuous biometric monitoring. Although the development of dual wearable sensors capable of simultaneously monitoring human motion and biometric data presents significant challenges, the ability to fabricate these sensors with geometries tailored to individual users is highly desirable. Herein, we report three-dimensional (3D)-printed flexible conductive hydrogels designed to serve dual functions as both strain and colorimetric sensors for sweat lactate detection. Poly(ethylene glycol)-bisurethane methacrylate with varying molecular weights was synthesized and utilized as a cross-linker in photopolymerizable resins. These resins were employed to fabricate various 3D complex architectures via a liquid crystal display 3D printer, resulting in hydrogels with remarkable mechanical properties, including excellent stretchability, toughness, elastic recovery, and fatigue resistance. Postfabrication treatment with NaOH enhances the ionic conductivity of the hydrogel, enabling its use as a strain sensor capable of detecting compression, bending, and stretching through real-time resistance changes. In addition, a lactate assay was immobilized onto the hydrogel, allowing it to function as a colorimetric sensor for sweat lactate with a detection range of 0 to 25 mM, encompassing the physiological threshold associated with muscle fatigue. These dual-function sensors facilitate comprehensive, real-time monitoring of both human physiological activities and lactate levels within a single device, highlighting their potential for the on-demand fabrication of customizable smart health-monitoring systems.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"13 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145008921","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

Progress and Future Challenges in Bionic Drag Reduction Research Inspired by Fish Skin Properties. 受鱼皮特性启发的仿生减阻研究进展与未来挑战。

IF 9.5 2区材料科学

ACS Applied Materials & Interfaces Pub Date : 2025-09-08 DOI: 10.1021/acsami.5c12308

Jinming Kou,Yunqing Gu,Yun Ren,Denghao Wu,Zhenxing Wu,Jiegang Mou

{"title":"Progress and Future Challenges in Bionic Drag Reduction Research Inspired by Fish Skin Properties.","authors":"Jinming Kou,Yunqing Gu,Yun Ren,Denghao Wu,Zhenxing Wu,Jiegang Mou","doi":"10.1021/acsami.5c12308","DOIUrl":"https://doi.org/10.1021/acsami.5c12308","url":null,"abstract":"During the long course of evolution, fish have developed complex skin structures to adapt to the dynamic aquatic environment. These skin features not only reflect optimal adaptation to the aquatic environment but also play a key role in effectively reducing fluid drag and improving swimming efficiency, to reveal the intrinsic connection between the complex skin structure of fish and drag reduction performance and to provide new design ideas for the drag reduction surface of underwater vehicles. Based on the different drag reduction characteristics of fish skin structures, this paper divides existing biomimetic drag reduction technologies into three categories: riblet drag reduction, flexible drag reduction, and composite drag reduction. In terms of biomimetic riblet drag reduction, the drag reduction characteristics of shark skin and its biomimetic application were analyzed and the drag reduction mechanism of riblet structures affecting flow characteristics was revealed. Focusing on the flexible skin of dolphins, which differs from the rigid riblet structure of sharks, we further analyzed the role of flexible skin in reducing drag and maintaining high-speed movement. The different effects of flexible skin and riblet skin on flow characteristics were compared, and the mechanism and effect of flexible drag reduction were revealed. In addition, the mechanism of the synergistic effect of composite factors on flow characteristics and drag reduction effects was analyzed for the skins of other fish species. Finally, the challenges faced by bionic drag reduction technologies prototyped from fish species are summarized and future research directions and priorities are outlined.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"51 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145008925","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

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