Progress in Natural Science: Materials International最新文献_第6页

High-throughput screening of efficient Metal-Organic Frameworks for the generation of reactive oxygen species 用于生成活性氧的高效金属有机骨架的高通量筛选

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-05-20 DOI: 10.1016/j.pnsc.2025.05.002

Xinyu Zhong, Miaomiao Zheng, Rushuo Li, Xiubing Huang, Ge Wang

Metal-organic frameworks (MOFs) are recognized as promising catalysts for generating reactive oxygen species (ROS) due to their exceptional properties. However, identifying the most efficient MOF candidates remains challenging. In this study, the ROS generation performance of MOFs was predicted using Density Functional Theory (DFT) and a multi-step high-throughput screening process. This screening involved evaluations of structural stability, pore size, adsorption capacity, open metal sites, O₂ activation potential, and free energy simulations of reaction pathways. As a result, several MOFs (i.e., Cu-tris(4-aminophenyl)amine (Cu-MOF), Zn-2-H-MeIM (Zn-MOF), and Ce-2-amino-1,4-benzenedicarboxylic) (Ce-MOF) were identified as potential catalysts for ROS generation under both light and dark conditions. Especially, Cu-MOF was identified as the most efficient catalyst, generating 7.52 mmol g⁻¹ H₂O₂ in 1 h under light irradiation, and 2.88 mmol g⁻¹ H₂O₂ in the dark. Furthermore, the polarity of coordination bonds between the metal atoms and ligand atoms in the ligands was found to significantly influence O₂ activation. The ROS generation trend of MOFs was consistent with the polarity of these coordination bonds. The sterilization efficiency of Cu-MOF and Zn-MOF reached 99.9 % after 40 min of light exposure, while after 100 min in the dark, the efficiencies were 99.9 % and 41.6 %, respectively. This trend was closely related to the variation in the polarity of coordination bonds. This work provides a strategy and methodology for high-throughput screening of MOFs.

金属有机骨架（MOFs）由于其独特的性能被认为是一种很有前途的活性氧（ROS）催化剂。然而，确定最有效的MOF候选者仍然具有挑战性。在本研究中，利用密度泛函理论（DFT）和多步高通量筛选过程预测了mof的ROS生成性能。筛选包括结构稳定性、孔径、吸附能力、开放金属位点、O2活化电位和反应途径的自由能模拟。因此，几种mof（即cu -三（4-氨基苯基）胺（Cu-MOF）， Zn-2-H-MeIM （Zn-MOF）和ce -2-氨基-1,4-苯二羧酸）（Ce-MOF）在光照和黑暗条件下都被确定为ROS生成的潜在催化剂。其中Cu-MOF的催化效率最高，光照条件下1 h可生成7.52 mmol g−1 H2O2，光照条件下1 h可生成2.88 mmol g−1 H2O2。此外，还发现配体中金属原子与配体原子之间的配位键的极性显著影响O2的活化。mof的ROS生成趋势与这些配位键的极性一致。光照40 min后Cu-MOF和Zn-MOF的杀菌效率达到99.9%，光照100 min后Cu-MOF和Zn-MOF的杀菌效率分别为99.9%和41.6%。这一趋势与配位键极性的变化密切相关。本研究为mof的高通量筛选提供了一种策略和方法。

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引用次数: 0

Accurate prediction of pitting corrosion in aluminum alloys via integrated multi-model methods 基于多模型集成的铝合金点蚀准确预测

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-03-28 DOI: 10.1016/j.pnsc.2025.03.015

Zhenchang Xu , Xinliang Li , Baoyu Cai , Guipeng Liu , Luchun Yan , Kewei Gao

As one of the major corrosion forms of aluminum alloys in atmospheric environments, pitting corrosion is characterized by stochastic development and non-uniform progression, which challenges the accurate prediction of pitting corrosion behavior. This study employs an integrated approach combining laboratory-accelerated corrosion testing with finite element modeling (FEM) to elucidate critical environmental factors governing localized corrosion behavior. The incorporation of micro-galvanic current density parameters derived from FEM analysis demonstrates significant prediction capacity enhancement, achieving 17.9 % and 35.5 % (MAE values) improvements in pit area and depth prediction accuracy respectively compared to conventional experimental data-driven machine learning approaches. Furthermore, the developed machine learning framework enables probabilistic prediction of pit dimension distributions, establishing a holistic methodology for comprehensive early-stage pitting assessment in aluminum alloys.

点蚀是铝合金在大气环境中的主要腐蚀形式之一，其发展具有随机性和非均匀性，这给点蚀行为的准确预测带来了挑战。本研究采用实验室加速腐蚀试验与有限元建模（FEM）相结合的综合方法来阐明控制局部腐蚀行为的关键环境因素。与传统的实验数据驱动的机器学习方法相比，结合FEM分析得出的微电流密度参数的预测能力显著增强，坑面积和深度的预测精度分别提高了17.9%和35.5% （MAE值）。此外，开发的机器学习框架能够对坑尺寸分布进行概率预测，为铝合金的综合早期点蚀评估建立了一个整体方法。

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引用次数: 0

High-pressure sintering of ultrafine-grained TiCN ceramics 超细晶TiCN陶瓷的高压烧结

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-07-03 DOI: 10.1016/j.pnsc.2025.06.006

Shilong Chen , Lei Sun , Mengdong Ma , Li Zhu , Baozhong Li , Tianye Jin , Yang Zhang , Shuo Zhang , Wei Sun , Bing Liu , Zhisheng Zhao , Junyun Chen

Ultrafine-grained TiCN ceramics exhibiting enhanced mechanical performance were successfully fabricated by high-pressure sintering technology. Systematic investigations were conducted to assess the impacts of sintering temperature on grain size, relative density, hardness, fracture toughness and flexural strength. The optimized samples, sintered at 6 GPa and 1400 °C, achieved near-theoretical density (99.2 ± 0.2 % relative density) while preserving an ultrafine-grained microstructure with an average grain size of 270 ± 36 nm. This microstructure demonstrated exceptional mechanical properties, exhibiting a synergistic enhancement in both Vickers hardness (22.6 ± 0.4 GPa) and fracture toughness (3.6 ± 0.2 MPa m^1/2) compared with spark plasma sintered coarse-grained TiCN ceramics and high pressure sintered submicron-grained TiCN ceramics. Notably, ultrafine-grained TiCN ceramics retained a Vickers hardness of 12.5 ± 0.4 GPa at 800 °C, which is 38.8 % higher than that of submicron-grained TiCN ceramics. The superior mechanical performance is attributed to the synergistic effects of grain refinement-induced strengthening and microcrack deflection-assisted toughening mechanisms.

采用高压烧结技术成功制备了力学性能优异的超细晶TiCN陶瓷。系统研究了烧结温度对晶粒尺寸、相对密度、硬度、断裂韧性和抗弯强度的影响。优化后的样品在6gpa和1400℃下烧结，获得了接近理论的密度（99.2±0.2%的相对密度），同时保持了平均晶粒尺寸为270±36 nm的超细晶组织。与火花等离子烧结粗晶TiCN陶瓷和高压烧结亚微米晶TiCN陶瓷相比，该显微结构表现出优异的力学性能，在维氏硬度（22.6±0.4 GPa）和断裂韧性（3.6±0.2 MPa m1/2）方面均有协同增强。在800℃时，超细晶TiCN陶瓷的维氏硬度为12.5±0.4 GPa，比亚微米晶TiCN陶瓷的维氏硬度高38.8%。优异的力学性能是晶粒细化强化和微裂纹偏转辅助增韧机制协同作用的结果。

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引用次数: 0

Progresses in treatment processes and quantification strategies of micro- and nanoplastics 微纳米塑料的处理工艺及定量策略研究进展

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-05-27 DOI: 10.1016/j.pnsc.2025.05.003

Qi Shao , Yi Yang , Huimin Liang , Kerui Zhang , Zeyu Ma , Wenwu Wang , Zilu Hu , Rui Wang , Jibing Chen , Yulai Han , Liang He

Plastics are the choice for package of products, medical implants, and other applications. But the transformation of plastics into minuscule particles, known as micro- and nanoplastics (MNPs, microplastics’ size <5 mm and nanoplastics’ size <1 μm), through physical action or chemical degradation, led to their widespread presence in virtually every ecosystem, and there are concerns about their impact on the environment and human health. Therefore, establishing standardized lines for maximum concentrations of MNPs in a system is essential to ensure the coexistence of MNPs with nature as well as humans. However, the complexity and diversity of MNPs in terms of size, polymer type, and density make the identification and quantification of MNPs a significant challenge. This review introduces representative treatment processes for purification or extraction of MNPs from environmental samples, and the advanced methods for quantitative analysis of MNPs. Special attention is paid to techniques related to the quantitative analysis of MNPs, and the advantages and limitations of these methods are discussed. Moreover, the necessity of establishing harmonized and standardized methods for the quantitative analysis of MNPs in investigating standardized lines of maximum concentrations of MNPs in the systems is envisioned, and the challenges and urgent issues with concerns for the future are discussed and summarized.

塑料是产品包装、医疗植入物和其他应用的选择。但是，塑料通过物理作用或化学降解转化为微小颗粒，称为微塑料和纳米塑料（MNPs，微塑料尺寸为5毫米，纳米塑料尺寸为1 μm），导致它们几乎在每个生态系统中广泛存在，人们担心它们对环境和人类健康的影响。因此，建立系统中MNPs最大浓度的标准化线对于确保MNPs与自然以及人类共存至关重要。然而，MNPs在大小、聚合物类型和密度方面的复杂性和多样性使得MNPs的鉴定和量化成为一项重大挑战。本文介绍了从环境样品中纯化或提取MNPs的代表性处理工艺，以及MNPs定量分析的先进方法。特别关注与MNPs定量分析相关的技术，并讨论了这些方法的优点和局限性。此外，展望了在研究系统中MNPs最大浓度的标准化线时建立统一和标准化的MNPs定量分析方法的必要性，并讨论和总结了未来面临的挑战和迫切需要关注的问题。

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引用次数: 0

Modulating B-site atomic environment via Co-doping to meliorate La0.5Sr1.5MnO4 cathode electrocatalysis for protonic ceramic fuel cells 通过共掺杂调节b位原子环境改善质子陶瓷燃料电池La0.5Sr1.5MnO4阴极电催化

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-05-22 DOI: 10.1016/j.pnsc.2025.05.004

Dezhi Geng , Huan Feng , Lei Ma , Fang Wu , Qi Wang , Jie Hou

Tailoring the B-site atomic environment in K₂NiF₄-type materials offers a strategic approach to optimize electrocatalytic performance. Herein, Co-doping is introduced into the manganite-based La_0.5Sr_1.5MnO_4+δ (LSMO) to generate additional oxygen vacancies and establish Mn⁴⁺/Mn³⁺ and Co⁴⁺/Co³⁺ redox couples, which create efficient electron-hopping pathways and enhance electrocatalytic activity. The resultant La_0.5Sr_1.5Mn_0.8Co_0.2O_4+δ (LSMCO) cathode demonstrates exceptional performance in a protonic ceramic fuel cell (PCFC), delivering a peak power density of 1491 mW cm⁻² with a low polarization resistance of 0.095 Ω cm² at 700 °C. These metrics significantly surpass those of LSMO-based and Ln₂NiO₄-based cathodes reported in prior studies. The superior performance stems from accelerated oxygen ion migration and enhanced protonation kinetics in LSMCO, as evidenced by electrical conductivity relaxation (ECR) experiments, which promote faster electrode reaction. Coupled with robust durability with minimal degradation, LSMCO emerges as a leading PCFC cathode candidate. This study underscores the effectiveness of Co-doping in reconfiguring the B-site atomic environment of Mn-based K₂NiF₄-related materials, providing critical insights for designing high-performance electrocatalysts. The findings highlight a viable pathway for advancing materials in energy conversion technologies, emphasizing the synergy between tailored atomic environments and optimized redox activity for next-generation fuel cells.

调整k2nif4型材料的b位原子环境为优化电催化性能提供了一种策略方法。本文将共掺杂引入到锰基La0.5Sr1.5MnO4+δ (LSMO)中，产生额外的氧空位，并建立Mn4+/Mn3+和Co4+/Co3+氧化还原对，从而形成高效的电子跳迁途径，提高电催化活性。所得的La0.5Sr1.5Mn0.8Co0.2O4+δ (LSMCO)阴极在质子陶瓷燃料电池（PCFC）中表现出优异的性能，在700°C时提供1491 mW cm - 2的峰值功率密度和0.095 Ω cm2的低极化电阻。这些指标明显超过了先前研究中报道的基于lmos和基于ln2nio4的阴极。电导率弛豫（ECR）实验证明，LSMCO的优异性能源于氧离子迁移加速和质子化动力学增强，从而促进了电极反应的加快。LSMCO具有耐用性强、降解率低的特点，是PCFC阴极的主要候选材料。这项研究强调了共掺杂在重新配置mn基k2nif4相关材料的b位原子环境中的有效性，为设计高性能电催化剂提供了重要的见解。这一发现为推进能量转换技术中的材料提供了一条可行的途径，强调了下一代燃料电池在定制原子环境和优化氧化还原活性之间的协同作用。

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引用次数: 0

Insights into the challenges and potential solutions of Li- and Mn-rich layered cathode materials 富锂和富锰层状正极材料的挑战和潜在解决方案

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-07-09 DOI: 10.1016/j.pnsc.2025.06.013

Dong Luo , Xuanhe Yang , Yuan Xiao , He Zhu

Li- and Mn-rich layered oxides (LMRs) are a type of ideal cathode material for the next-generation high-energy Li-ion batteries due to their ultrahigh reversible capacity over 250 mAh g⁻¹. Their extraordinary capacity originates from the unique coherent nanodomains of hexagonal LiTMO₂ and monoclinic Li₂MnO₃, which promotes LMRs to have hybrid redox chemistry of anions and cations. However, oxygen anion redox process will induce a decrease in the diffusion coefficient and the irreversible oxygen release, and the resulting oxygen vacancies may accelerate the migration of transition metals. Therefore, the LMR cathodes always suffer from four challenges: poor rate capability, low initial Coulombic efficiency (ICE), substantial capacity degradation and voltage decay, which seriously restrict the large-scale application. Herein, this work will combine with the literature reports and the research results of our team over the past ten years, briefly present the viewpoints on solving the above problems of LMRs.

富含锂和锰的层状氧化物（LMRs）具有超过250 mAh g−1的超高可逆容量，是下一代高能锂离子电池的理想正极材料。它们非凡的能力源于六方LiTMO2和单斜Li2MnO3独特的相干纳米结构域，这促进了LMRs具有阴离子和阳离子的混合氧化还原化学。然而，氧阴离子氧化还原过程会导致扩散系数的降低和氧的不可逆释放，由此产生的氧空位会加速过渡金属的迁移。因此，LMR阴极一直面临着速率性能差、初始库仑效率（ICE）低、容量退化和电压衰减严重等四大挑战，严重制约了LMR阴极的大规模应用。在此，本工作将结合文献报道和我们团队近十年的研究成果，简要介绍解决LMRs上述问题的观点。

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引用次数: 0

Developing aluminum matrix composites through microstructure optimization and particle reinforcement via ARB and cryorolling 通过组织优化和ARB和冷轧强化制备铝基复合材料

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-04-29 DOI: 10.1016/j.pnsc.2025.04.004

Waqas Farid, Hailiang Yu

Aluminum matrix composites (AMCs) reinforced with titanium carbide (TiC) particles were fabricated through accumulative roll bonding (ARB) and cryorolling. This study explores the effect of ARB temperatures (373 K, 473 K, 623 K, and 723 K) on the dispersion of TiC particles, followed by cryorolling to assess the influence on mechanical properties. This research also focuses on the TiC-Al interface, as its bonding strength plays a significant role in composite performance. Microstructural analyses using SEM, EDS, and TEM revealed that ARB processing at 623 K followed by cryorolling resulted in the most homogeneous TiC distribution and optimal interface bonding, leading to significant improvements in mechanical properties. The study emphasizes the importance of controlling processing temperature and cycles to achieve a uniform dispersion of TiC particles and maintain an effective interface between TiC and the aluminum matrix. While lower ARB temperatures (373 K and 473 K) resulted in particle clustering, higher ARB temperatures (723 K) caused grain coarsening, leading to suboptimal strengthening. This research provides new insights into tailoring processing conditions to enhance both microstructure and mechanical performance of TiC-reinforced AMCs for advanced engineering applications.

采用累积轧制结合和低温轧制的方法制备了碳化钛颗粒增强铝基复合材料（AMCs）。本研究探讨了ARB温度（373 K, 473 K， 623 K和723 K）对TiC颗粒分散的影响，然后进行冷冻轧制以评估其力学性能的影响。TiC-Al界面的结合强度对复合材料的性能起着重要的作用。利用SEM、EDS和TEM进行的显微组织分析表明，在623 K下进行ARB处理，然后进行冷冻轧制，可以获得最均匀的TiC分布和最佳的界面结合，从而显著提高了力学性能。该研究强调了控制加工温度和循环的重要性，以实现TiC颗粒的均匀分散，并保持TiC与铝基体之间的有效界面。较低的ARB温度（373 K和473 K）导致晶粒聚集，较高的ARB温度（723 K）导致晶粒粗化，导致强化效果不理想。该研究为定制加工条件提供了新的见解，以提高tic增强amc的微观结构和力学性能，用于先进的工程应用。

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引用次数: 0

Significant enhancement of hydrogen absorption performance by optimizing structure and operating parameters in magnesium-based alloy hydrogen storage reactors 通过优化镁基合金储氢反应器的结构和操作参数，显著提高了储氢性能

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-06-16 DOI: 10.1016/j.pnsc.2025.06.007

Gaowei Li , Yuze Xi , Ming Yao , Yawei Li , Haixiang Huang , Bogu Liu , Bao Zhang , Jianguang Yuan , Ying Wu

Metal hydride (MH) reactors are key components in industrial-scale storage and transport of hydrogen, offering benefits such as high volumetric hydrogen storage density and safety. However, the application of large-scale tanks is constrained by the significant heat generated during hydrogen absorption. This study investigates the thermodynamic and kinetic properties of the Mg₉₂Ni₄La₁Mn₃ alloy. A model is developed to optimize the hydrogen absorption performance of the Mg-based MH reactor by incorporating heat exchange tubes and fins. This approach significantly enhances hydrogen absorption kinetics. The Straight tube + Spiral fins reactor (ST-SFR) shows excellent hydrogen absorption performance as well as heat transfer efficiency. Based on the 5 Straight tube reactor (5ST-R), a three-dimensional model of 5 Straight tube + Spiral fin reactor (5ST-SFR) is designed, incorporating five heat exchange tubes and spiral fins to facilitate efficient heat transfer. Through simulation and analysis, the optimal operating parameters are determined: hydrogen supply pressure of 2.0 MPa, initial temperature of 513 K, and HTF flow velocity of 2.0 m/s. Compared to the 5ST-R, the 5ST-SFR reduces the time required to reach 95 % hydrogen absorption (t_{95 %} = 260.3 s) by 27.5 % and decreases the required HTF mass flow rate by 47.6 %. The established mathematical model and reactor structure design provide technical support for the advancement and utilization of large-scale Mg-based MH reactors.

金属氢化物（MH）反应器是工业规模氢储存和运输的关键部件，具有高容量氢储存密度和安全性等优点。然而，大型储罐的应用受到氢吸收过程中产生的大量热量的限制。研究了Mg92Ni4La1Mn3合金的热力学和动力学性质。建立了采用换热管和换翅片对镁基MH反应器吸氢性能进行优化的模型。这种方法显著提高了氢吸收动力学。直管+螺旋翅片反应器（ST-SFR）具有优异的吸氢性能和传热效率。以5直管反应器（5ST-R）为基础，设计了5直管+螺旋翅片反应器（5ST-SFR）的三维模型，采用5根换热管和螺旋翅片进行高效换热。通过仿真分析，确定了最佳运行参数：供氢压力2.0 MPa，初始温度513 K， HTF流速2.0 m/s。与5ST-R相比，5ST-SFR将达到95%吸氢所需的时间（t95% = 260.3 s）缩短了27.5%，所需的HTF质量流率降低了47.6%。建立的数学模型和反应器结构设计为大型镁基MH反应器的研制和利用提供了技术支持。

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引用次数: 0

The interstitial composite separators constructed by flat-engineering for high-efficiency alkaline water electrolysis 平板工程构建的高效碱水电解间隙复合分离器

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-06-04 DOI: 10.1016/j.pnsc.2025.05.008

Xintong Yan, Yu Zhang, Yonghui Ye, Wenbo Zhao, Siyang Wang, Shi Hu

Composite separators are widely used in alkaline water electrolysis due to their superior corrosion resistance. Herein, we obtained a series of separators with enhanced hydrophilicity, including a denser and smoother surface, by introducing additives and a heating treatment during the pre-evaporation process. Specifically, the interstitial strategy can be employed to address the issue of inadequate structural stability induced by conventional hydrophilic additives, such as polyvinylpyrrolidone, by utilizing TiO₂ with hydrophilicity and particle size differences from ZrO₂. This approach optimizes the hydrophilicity and pore size distribution, while enhancing the ductility. Z₈T₂ exhibits superior overall performance with an area resistance of merely 0.103 Ω·cm², substantially outperforming the commercial Zirfon UTP500 (0.3 Ω·cm²). Using Raney Ni and NiFe-LDH as catalysts, the electrolyzer achieves a current density of 1401 mA/cm² at 1.9 V, demonstrating a significant improvement comparing with commercial Zirfon UTP500 (1053 mA/cm²). The separator exhibits remarkable stability at a current density of 400 mA/cm² for 300 h in 30 wt% KOH solution at 80°C and is also reused. This work provides a simple and universal strategy for process operation and additive control.

复合分离器因其优异的耐腐蚀性能在碱水电解中得到广泛应用。通过在预蒸发过程中引入添加剂和加热处理，我们获得了一系列亲水性增强的分离器，包括更致密和光滑的表面。具体来说，通过利用与ZrO2具有亲水性和粒径差异的TiO2，可以采用间隙策略来解决传统的亲水添加剂（如聚乙烯吡咯烷酮）引起的结构稳定性不足的问题。这种方法优化了亲水性和孔径分布，同时提高了延展性。Z8T2具有优异的综合性能，面积电阻仅为0.103 Ω·cm2，大大优于商用锆石UTP500 （0.3 Ω·cm2）。使用Raney Ni和NiFe-LDH作为催化剂，电解槽在1.9 V下的电流密度达到1401 mA/cm2，与商用Zirfon UTP500 （1053 mA/cm2）相比有显著提高。该分离器在电流密度为400 mA/cm2时表现出显著的稳定性，在30 wt% KOH溶液中，在80°C下保持300小时，并且可以重复使用。这项工作为过程操作和附加控制提供了一种简单而通用的策略。

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引用次数: 0

Deciphering the dominant slip mechanism in bending deformation of Ti65 alloy foil through in-situ characterization 通过原位表征，揭示Ti65合金箔弯曲变形的主要滑移机制

IF 7.1 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Progress in Natural Science: Materials International

Pub Date : 2025-08-01 Epub Date: 2025-06-26 DOI: 10.1016/j.pnsc.2025.06.004

Ding Zhao , Jiangkun Fan , Zesen Chen , Wenyuan Zhang , Zhixin Zhang , Bin Tang , Jian Wang , Hongchao Kou , Jinshan Li

This study, through in-situ EBSD, confirmed that basal slip in α-phase grains is the key driver of bending plastic deformation in near-α titanium alloy foils. A strong positive correlation was found between basal slip activation and the extent of plastic deformation. In contrast, the activation of prismatic slip exhibited a random distribution with no correlation to the bending plastic deformation, despite being the more easily activated slip system.

本研究通过原位EBSD验证了α相晶粒基底滑移是近α钛合金箔弯曲塑性变形的关键驱动因素。发现基底滑移激活与塑性变形程度之间存在很强的正相关关系。相比之下，棱柱滑移的激活表现为随机分布，与弯曲塑性变形无关，尽管是更容易激活的滑移体系。

引用次数: 0