Journal of Alloys and Compounds最新文献

{"title":"Optical improvement by the substitution of Na+ and Sc3+ for (Sr, Ba)3MgSi2O8:Eu2+, Mn2+ and its large effect on the growth of lettuce and mini-tomato","authors":"Ying Wang ,&nbsp;Yuhua Wang ,&nbsp;Jianming Xie ,&nbsp;Takatoshi Seto","doi":"10.1016/j.jallcom.2025.182571","DOIUrl":"10.1016/j.jallcom.2025.182571","url":null,"abstract":"<div><div>We created a new converter of sunlight to deep red and blue dual light for plant growth. Na⁺ and Sc³⁺ were successfully substituted for Sr²⁺ and Mg²⁺ in (Sr, Ba)₃MgSi₂O₈:Eu²⁺, Mn²⁺, which emits 430 nm blue and 658 nm red light under UV and blue excitation, matching the chlorophyll absorption spectra of plants. The simultaneous substitution of Na⁺ for the Sr²⁺ site and Sc³⁺ for the Mg²⁺ site to keep electric charge balance significantly increased the emission intensity of deep red due to more Eu³⁺ being reduced to Eu²⁺, and the observed shift of Mn’s valence to 2 + . It decreased the intensity of blue, increasing the emission ratio of deep red/ blue favorable for plant growth, which indicates that resonance energy transfer of Eu²⁺ to Mn²⁺ was accelerated. The emission intensity of Mn²⁺ at 423 K remained at about 73 % of the intensity at room temperature. After 1000 h at 85 ℃ and 85 % humidity, the luminous intensity of Mn²⁺ was about 69.1 % of that at room temperature. Polypropylene（PP）films containing phosphors were prepared, and plant growth experiments of lettuce and mini tomato were conducted, which showed that the yield of the mini tomato and lettuce increased by 33 % and 80 %. It is recognized that + 80 % of lettuce growth under this new phosphor and our unique reflection-type sunlight-conversion system is a world-top growth rate, while the conventional transmittance-type (greenhouse type) sunlight-conversion system has maximumly reached + 15 %. This suggests that Sr_1.4Ba_1.5Na_0.07Mg_0.8Sc_0.07Si₂O₈: Eu²⁺, Mn²⁺ phosphors have great potential for plant growth applications.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182571"},"PeriodicalIF":6.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144737642","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":"Coexistence of 2 × 2 superstructure and monoclinic phases in a bismuth ferrite thin film via distortion-corrected scanning transmission electron microscopy","authors":"Yukio Sato ,&nbsp;Hiroshi Naganuma","doi":"10.1016/j.jallcom.2025.182622","DOIUrl":"10.1016/j.jallcom.2025.182622","url":null,"abstract":"<div><div>Bismuth ferrite (BiFeO₃ (BFO)) thin films have been extensively explored for application in electronic devices. Multiple crystal phases of BFO have been reported, each exerting distinct influences on the physical properties of the material. However, identifying these crystal phases in thin films remains challenging owing to the limited region of interest. In this study, we characterized the local crystal phases in a BFO thin film by measuring the lattice parameters through atomic-scale electron microscopy with image distortion correction. The coexistence of a <span><math><msqrt><mrow><mn>2</mn></mrow></msqrt></math></span> × <span><math><msqrt><mrow><mn>2</mn></mrow></msqrt></math></span> superstructure phase and monoclinic phases was observed. The <span><math><msqrt><mrow><mn>2</mn></mrow></msqrt></math></span> × <span><math><msqrt><mrow><mn>2</mn></mrow></msqrt></math></span> superstructure phase, which has not been reported previously, was characterized by a <em>c</em>/<em>a</em> ratio greater than 1.2, Bi-ion displacement along the <em>c</em>-axis, and alternating zigzag Bi- and Fe-ion displacements. In other regions, mixed monoclinic phases with a high density of twin boundaries were observed. Overall, this study highlights the highly complex local crystal phases in BFO films and the need for detailed atomic-scale investigations.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182622"},"PeriodicalIF":6.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144737663","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":"Advancements in Laser Powder Bed Fusion Manufacturing of Alloy 718: Microstructural Insights and Mechanical Behaviours","authors":"Varun Kumar A, Pradeep Krishna R, Hariharasakthisudhan P, Jithendra Kumar Katiyar, Sathickbasha K","doi":"10.1016/j.jallcom.2025.182631","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182631","url":null,"abstract":"Alloy 718 boasts exceptional creep, thermal, and corrosion resistance properties, making it a favoured material in industries such as aerospace, marine, oil and gas, nuclear reactors, rocket engines, pressure vessels, and medical implants. Despite its widespread utility, traditional manufacturing methods encounter limitations in working with Alloy 718 due to its intricate properties. Laser Powder Bed Fusion (LPBF) Additive Manufacturing has emerged as a promising solution to overcome these limitations, offering enhanced workability and versatility. This article examines recent advancements and research developments in LPBF-processed Alloy 718, with a particular focus on microstructural characteristics and mechanical behavior. It delves into optimization studies aimed at refining the LPBF process for Alloy 718 production and explores the integration of machine learning techniques for process modelling. Additionally, the article sheds light on failure mechanisms observed in LPBF-processed Alloy 718 across various conditions. By providing a comprehensive overview of current research endeavours and prospects in LPBF-based fabrication of Alloy 718, this review contributes to the understanding and advancement of this innovative manufacturing technique.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"68 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144719592","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":"Glass-confined, ultrafine nanocrystalline core/shell microwires with enhanced giant magneto-impedance performances","authors":"Subong An ,&nbsp;Jeong Eun Byun ,&nbsp;Yeoul Kang ,&nbsp;Jae-Won Jeong ,&nbsp;Nohgyeom Ha ,&nbsp;Soo Hyun Kim ,&nbsp;Sang-Sun Yang ,&nbsp;Sangkil Kim ,&nbsp;Jung Woo Lee ,&nbsp;Young-Tae Kwon","doi":"10.1016/j.jallcom.2025.182624","DOIUrl":"10.1016/j.jallcom.2025.182624","url":null,"abstract":"<div><div>Functional soft magnetic materials with tunable physical properties and reduced dimensionalities are highly desirable for numerous smart applications, including automobile navigation, sensors, and microelectronics. Continual progress in the areas of high-performance magnetic alloys and fabrication technologies is driving the rapid development of giant magnetoimpedance (GMI) sensors that utilize large electrical impedance changes in response to an applied magnetic field. However, existing soft magnetic materials that exhibit the GMI effect still rely on expensive Co-based alloys, and are known to show low operating sensitivities under weak magnetic fields. Herein, the ultrafine nanocrystalline core/shell microwires is presented, which incorporates low-cost Fe alloys to enable an enhanced GMI performance. The use of a microwire manufacturing process that integrates alloy melting with rapid cooling produced a continuous amorphous metal core with a uniform diameter, which was encapsulated by a glass shell. During the thermal crystallization process, the addition of Mo or W to Fe-based compositions led to grain refinement by promoting significant additive partitioning between the primary crystalline and residual amorphous phases. The ultrafine nanocrystalline microwires exhibited a high permeability and a low coercivity, ultimately demonstrating an increased GMI performance compared to those observed for amorphous microwires.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182624"},"PeriodicalIF":6.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144719590","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":"Structure, microstructure, and electrical transport of nonstoichiometric (Y0.07Sr0.93)xTi0.8Fe0.2O3-δ perovskite ceramics","authors":"S. Królak, N. Lisowska, P. Okoczuk, A Mielewczyk – Gryń, M. Gazda, T. Miruszewski","doi":"10.1016/j.jallcom.2025.182621","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182621","url":null,"abstract":"In this paper, we present the analysis of the influence of nonstoichiometry on the properties of polycrystalline (Y_0.07Sr_0.93)_xTi_0.8Fe_0.2O_3-δ compounds for x = 0.92; 0.96; 1.00; 1.06, and 1.08. The crystal structure, microstructure, and electrical conductivity of the samples were characterized. Structural studies showed that the samples exhibited a cubic perovskite structure, both in the case of strontium excess and deficiency. The unit cell parameters varied with the level of (Y,Sr) nonstoichiometry, increasing from 3.8984(1) Å to 3.9145(1) Å with increasing x. Microstructure studies showed that the stoichiometric and strontium-deficient samples were dense, while the strontium excess affected higher porosity. The average grain size in the tested ceramics was between (1.5±0.2) μm and (4.0±0.4) μm, while the agglomeration ratio for all compounds was between 6 and 17. All compositions showed thermally-activated electrical conductivity, which was significantly reduced upon introducing (Y,Sr)-site nonstoichiometry and excess. Depending on the composition, studied materials showed a total electrical conductivity of 10^-4 to 10^-1 S cm^-1 at 450-850 °C range. Samples with a (Y,Sr)-site deficiency exhibited activation energies for the conduction process of 0.37 – 0.41<!-- --> <!-- -->eV, while those with excess strontium showed lower conduction activation energies of 0.26 – 0.28<!-- --> <!-- -->eV. The structural and electrical properties of the materials were discussed in terms of the defect chemistry based on antisite defects. The results strongly contradict most of the literature reports on Sr-site nonstoichiometric SrTiO₃, showing the significant impact of the Fe³⁺ substituent in the B-site on the structure and charge transport.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"11 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144719588","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":"Efficient optimization of ultra-high temperature ceramic oxidation resistance based on limited data via GAN-enhanced active learning","authors":"Lingyu Wang, Li’an Zhu, Wenjian Guo, Zhen Wang, Bin Yang, Shuxin Bai, Yicong Ye","doi":"10.1016/j.jallcom.2025.182634","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182634","url":null,"abstract":"Addressing the challenges of low optimization efficiency in the high-temperature oxidation resistance of ultra-high temperature ceramics (UHTCs) and the limited predictive capability of machine learning models constrained by small-sample data, this study proposes an intelligent optimization framework synergistically driven by generative adversarial networks (GANs) and active learning. For the HfB₂-SiC-X (X = C, MoSi₂, ZrC, TaSi₂) system, 1,000 augmented data points were generated via Wasserstein GAN (WGAN) from 83 experimental data points, effectively mitigating data sparsity and significantly enhancing model prediction accuracy. Integrated with the active learning upper confidence bound (UCB) algorithm, the framework aimed to minimize oxidation layer thickness, recommending four candidate compositions through a single iteration for experimental validation. Results demonstrate that the optimized composition achieved a minimum oxidation layer thickness of 4.57 μm, representing a 17% reduction compared to the optimal value (5.49 μm) in the original dataset. Characterization analysis confirmed that the optimized composition formed a dense HfO₂-SiO₂ composite oxide layer after oxidation at 1600°C, effectively suppressing oxygen diffusion through the generation of a high-viscosity melt. SHapley Additive exPlanations (SHAP) analysis further revealed that the synergistic interaction between MoSi₂ and SiC enhances the self-healing capacity of the oxide layer, whereas C and ZrC degrade performance due to gaseous product formation and oxide layer spallation. By combining data augmentation with active learning, this study achieves efficient optimization and mechanistic interpretation of oxidation resistance in UHTCs under small-sample constraints, demonstrating a rapid and generalizable methodology for accelerated materials discovery using limited experimental data.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"139 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144737662","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":"Modulation of perpendicular magnetic anisotropy in MgO/CoFeB/Hf structures via a Mo insertion layer","authors":"Zeyi Zhu,&nbsp;Bin Kang,&nbsp;Yafan Wan,&nbsp;Hehai Long,&nbsp;Xue Wang,&nbsp;Zhihao Liu,&nbsp;Xiaomeng Wang,&nbsp;Li Ma,&nbsp;Fu Zheng","doi":"10.1016/j.jallcom.2025.182626","DOIUrl":"10.1016/j.jallcom.2025.182626","url":null,"abstract":"<div><div>High-density and stable data storage devices require thin film materials with thermally stable perpendicular magnetic anisotropy (PMA). While significant progress has been made in achieving PMA in MgO/CoFeB-based structures, maintaining strong anisotropy under the high temperatures required for complementary metal-oxide-semiconductor (CMOS) integration remains a critical challenge. To address this, we introduce a Mo insertion layer between the CoFeB and Hf layers in the MgO/CoFeB/Hf structure, which enables a transition from in-plane magnetic anisotropy (IMA) to PMA. Upon annealing at 400 ºC, the MgO/CoFeB/Mo/Hf structure achieves an effective magnetic anisotropy constant <em>K</em>_eff of 1.97 × 10⁶ erg/cm³ and maintains stable PMA up to 450 ºC. In addition, this system still induces PMA even at a thicker ferromagnetic layer thickness of 2.2 nm. Detailed nanostructure analysis reveals that this results from a modified distribution of Co and Fe atoms within the CoFeB layer, driven by the presence of the Mo layer. We further investigate the formation mechanisms of PMA through assessments of alloy formation enthalpy, surface free energy, and first-principles calculations. This approach provides a promising pathway for creating thermally stable PMA thin film materials, advancing the development of reliable, high-density magnetic random access memory (MRAM) suited for CMOS-compatible applications.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182626"},"PeriodicalIF":6.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144719589","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":"Microstructural characteristics and high-temperature hot corrosion behavior of TiAl alloy fabricated by electron beam melting","authors":"Guangyuan Yu ,&nbsp;Zhen Dong ,&nbsp;Xin Chu ,&nbsp;Bingwen Lu ,&nbsp;Xingchen Yan ,&nbsp;Hao Qiu ,&nbsp;Jiangqi Zhu ,&nbsp;Yongliang Gui ,&nbsp;Cheng Chang","doi":"10.1016/j.jallcom.2025.182625","DOIUrl":"10.1016/j.jallcom.2025.182625","url":null,"abstract":"<div><div>In this study, the high-temperature corrosion behavior of TiAl alloy fabricated via electron beam melting (EBM) was systematically investigated in a molten NaCl-Na₂SO₄ (25:75 wt%) environment. The EBM-fabricated TiAl alloy exhibited a near-γ microstructure characterized by γ equiaxed grains and alternating α₂/γ lamellar structures, with stratified grain bands aligned along the build direction due to layer-wise thermal cycling and non-equilibrium phase transitions. The rapid cooling kinetics inherent to the EBM process promoted an L→β→α→γ solidification path, resulting in α/γ lamellar precipitation within prior β phase and structural heterogeneity driven by dynamic temperature field variations. Results from thermal corrosion experiments revealed a temperature-dependent degradation mechanism:at 700 °C, a protective Al₂O₃ scale formed gradually, resulting in a minimal mass gain of 4.31 × 10⁻³ mg/cm²; in contrast, severe oxide spallation occurred at 900 °C, accompanied by a dramatic mass increase to 39.23 mg/cm². Microstructural analysis confirmed that the breakdown of oxide layer integrity at elevated temperatures significantly compromised corrosion resistance. These findings provided crucial insights into the operational temperature limits of additively manufactured TiAl components under aggressive environments.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182625"},"PeriodicalIF":6.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144737661","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":"Recent advances and modifications of ZIF-67 and its derivatives in air positive electrodes of zinc-air batteries","authors":"Shuming Zhang ,&nbsp;Xingwang Niu ,&nbsp;Ruxin Liu ,&nbsp;Xuefei Lei ,&nbsp;Rui Guo ,&nbsp;Xuanwen Liu","doi":"10.1016/j.jallcom.2025.182618","DOIUrl":"10.1016/j.jallcom.2025.182618","url":null,"abstract":"<div><div>Zinc-air batteries (ZABs) are emerging as a highly promising alternative to lithium-ion batteries due to their high energy density (1086 Wh-kg⁻¹) and environmental sustainability. However, the slow kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in the air cathode remains the key bottleneck.ZIF-67, a classical cobalt-based metal-organic framework (MOF), and its derivatives have attracted a lot of attention due to its tunable structure and strong electrocatalytic performance. This review systematically summarizes recent advances in modifying ZIF-67 through various strategies, including morphology engineering (0D to 3D nanostructures), doping engineering, defect engineering, heterostructure engineering, single-atom catalysis, and compositing with electrically conductive materials. These modifications have greatly improved active sites exposure, electronic conductivity, and structural stability, thereby optimizing ORR/OER performance. However, challenges such as structural instability, cost-effectiveness, and performance in extreme environments remain. Future research directions should focus on better integration of multidimensional morphologies into one because of the tunability of the ZIF-67 structure, integration of in situ characterization techniques with machine learning, and eco-friendly biomass-based composites for practical applications of scalable high-performance ZABs.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182618"},"PeriodicalIF":6.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144719591","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":"Stepwise-doped CoFe/ N-doped CNTs as efficient bifunctional catalysts for Zn-air batteries","authors":"Lei Fang,&nbsp;Yang Li,&nbsp;Yuanyuan Li,&nbsp;Xiangyu Liang,&nbsp;Sailong Wang,&nbsp;Hao Geng,&nbsp;Yihang Tao,&nbsp;Mengmeng Zhang","doi":"10.1016/j.jallcom.2025.182647","DOIUrl":"10.1016/j.jallcom.2025.182647","url":null,"abstract":"<div><div>With the ever-increasing demand for energy storage technologies, zinc-air batteries have emerged as a promising next-generation battery technology due to their large energy density and cost-effective. However, the performance of zinc-air batteries is still constrained by the efficiency of cathode catalysts. Therefore, this paper proposes a bifunctional oxygen electrocatalyst synthesized based on a stepwise doping strategy, aiming to enhance the catalytic efficiency of zinc-air batteries. Initially, polypyrrole (PPy) nanoparticles were synthesized using a chemical oxidation method. Subsequently, a polyhedral structure with iron incorporated into zeolitic imidazolate frameworks (ZIF-8) was created via a solvothermal method. Finally, cobalt salt was introduced into the PPy and Fe-ZIF8 composite through a grinding process, this structure not only retains the advantages of ZIFs, such as large specific surface area and high porosity, but also preserves the chemical stability and high conductivity of PPy nanoparticles. The composite material was synthesized via this two-step doping strategy, formed an anemone-like structure with CoFe alloy uniformly embedded in nitrogen-doped carbon nanotubes after a simple pyrolysis process. By precisely controlling the composite ratio and the amount of metal salts, the synthesized CoFe@NCNT catalyst not only exhibited ideal morphological characteristics but also demonstrated excellent oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) performance. The electrocatalytic performance showed an ultra-low potential difference (ΔE = E_j10-E_1/2) of 0.63 V compared to commercial Pt/C and RuO₂. Moreover, the CoFe@NCNT catalyst achieved a specific capacity of 831.1 mAh g_Zn⁻¹ and a power density of 142 mW cm⁻² in zinc-air batteries, maintaining high stability over long-term cycling. Therefore, this work provides strong support and new insights for the progress of high-performance cathode materials for zinc-air batteries.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182647"},"PeriodicalIF":6.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144719594","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}