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Synthesis of structurally chiral nickel oxide nanostructures for enhanced spin-dependent oxygen electrocatalysis

Nano Research 2025年第3期18卷 341-346页

作者： Yiran Jin Yang Cheng Shenghe Dong Chengyu Xiao Zhi Chen Peng-peng Wang State Key Laboratory for Mechanical Behavior of Materials Shaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China

Chiral inorganic materials with unique asymmetries hold promising potential in several fields,including catalytic ***,imparting structural chirality to inorganic materials presents substantial challenges that hinders their exploration in many *** this study,we report a simple two-step method for synthesizing structurally chiral nickel oxides(NiO)nanostructures and demonstrate that the chiral-induced spin-selective mechanism enhances the catalytic performance during electrocatalytic oxygen evolution reaction(OER).Compared to their achiral NiO counterparts,the chiral NiO nanostructures not only improve the reaction kinetics(a 60 mV reduction in overpotential),but also effectively modulate the reaction pathway to inhibit the byproduct hydrogen peroxide *** neutral conditions,this modulation results in a 4.5-fold reduction in hydrogen peroxide *** work enriches the variety of chiral inorganic nanomaterials and paves the way for the development and application of chiral inorganic nanomaterials in spin-dependent processes.

关键词： chirality inorganic nanostructures nickel oxide oxygen evolution reaction

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The Tribocorrosion Resistance of Posttreated Supersonic Plasma-Sprayed MoSi2 Coating

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Journal of Tribology 2025年第8期147卷 081404页

作者： Hu, Chunhua Guo, Quanqiang Ji, Xinghao Liu, Yu Key Laboratory of Automobile Materials School of Materials Science and Engineering Jilin University Changchun130025 China School of Mechanical and Aerospace Engineering Jilin University Changchun130025 China

MoSi2 coatings were prepared on a 45CrNi substrate by supersonic plasma spraying (SAPS). The tribocorrosion resistance of MoSi2 coating and posttreated MoSi2 coating (P-MoSi2) in the seawater environment was analyzed. After posttreatment, some new phases such as MoO3, SiO2, and Mo9O26 are generated in the P-MoSi2 coating. The electrochemical test results indicated that the P-MoSi2 coating has lower current density and larger -βc and Rp values than MoSi2 coating in both static corrosion and tribocorrosion tests. The wear test results indicated that the posttreatment reduces the wear-rate and friction coefficient of the coating. The wear mechanisms of both coatings were described to explain the differences. Also, the mechanism of the improved tribocorrosion resistance after posttreatment was explained. © 2025 by ASME.

关键词： Plasma spraying

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Review of Recent Advancements in 3D Printing Technologies for Textile Applications

Textile and Leather Review

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Textile and Leather Review 2025年 8卷 72-104页

作者： Lemi, Muleta Tiki Lemu, Hirpa Gelgele Gutema, Endalkachew Mosisa Department of Mechanical and Structural Engineering and Materials Science Faculty of Science and Technology University of Stavanger StavangerN-4036 Norway Department of Mechanical Engineering College of Engineering &Technology Wollega University P.O. Box 395 Nekemte Ethiopia

3D printing (3DP) ranks as one of the more advanced methods in the manufacturing sector. All of the industrial sectors, including automobiles, medical services, aviation, athletics, fabrics, apparel, and fashion industries, have noticed an increase in the use of this approach for prototyping. In the past decade, 3DP technology has been applied in several industries by academics, textile technologists, designers of apparel, manufacturers, and suppliers. Textiles perform numerous purposes in addition to meeting the basic human need to protect the body. The textile industry has expanded its horizons with the incorporation of 3DP technology. This paper's goal is to present an integrated overview of the recent state of research to identify the most advanced 3DP techniques, materials, and applications currently used in the clothing and textile sectors. Fundamentals of basic textile substrates, numerous textile-related 3DP technologies, printing methods, materials for print inks, direct printing of 3D elements on different textile surfaces, and the impacts, benefits and limitations of 3D printed textile structure fabrication techniques are all addressed. It also emphasizes the ways 3DP technology will be used in the textile sector moving forward. Overall, the purpose of this issue of Textile Progress is to identify the potential of 3DP, which, despite certain limits, may improve the products of the fashion and textile sectors and encourage future scientists and designers to continue additional research. © 2025, idd3. All rights reserved.

关键词： Textile industry

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A novel multi-scale strategy to reveal martensitic transition and strengthening mechanism in Ti6Al4V alloy

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Journal of materials science and Technology 2025年 233卷 113-131页

作者： Ren, Tingzhen Lin, Cheng Li, Fei Shi, Yanhua Ma, Qihang Huang, Shixing Yin, Guili School of Mechanical Engineering Liaoning Petrochemical University Fushun113001 China School of Materials Science and Chemical Engineering Xi'an Technological University Xi'an710021 China College of Materials Science and Engineering Liaoning University of Technology Jinzhou121001 China

The preferred microstructure and formation of variants during martensitic transformation of titanium alloys are very important for understanding and optimizing the mechanical properties of alloys. However, the main contribution of variant selection in the past two decades mainly focused on the issues associated with the interfaces, and a comprehensive explanation at the micro atomic level is still lacking. In the current work, EBSD, TEM, and SEM were used to analyze the essence of variant selection in combination with the valence electron theory of alloys (VE-theory) and cellular automata (CA) modeling. The results show that the driving force and atom path can be demonstrated for the collective shear and rotation displacements of atoms in martensitic transition;the martensitic variant selection in Ti6Al4V alloy has greater randomness in three aspects, namely area ratio of martensitic variants, two variants formed by the same crystal plane of parent phase β, and the variant distribution ratios of five typical grain boundaries. The preferred selection of α' variant is mainly affected by atom interaction and element distribution, especially Al and V elements. The dislocation pile-up and the soft β phase in martensitic variants are two of the main factors to affect the hardness variation of lath martensite and acicular martensite. © 2025

关键词： Titanium alloys

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Laser-implanted short fiber-like interface structure for strengthening welded-brazed joint of Al/steel dissimilar metals

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Journal of materials science and Technology 2025年 237卷 68-82页

作者： Li, Lize Li, Jianyu Chen, Shuhai Chen, Shujun Yang, Jian Huang, Jihua Yu, Gaoyang School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China The College of Mechanical Engineering and Applied Electronics Technology Beijing University of Technology Beijing 100124 China School of Materials Science and Engineering Chongqing University of Technology Chongqing 400054 China

The lamellar layer of intermetallic compounds (IMCs) was adversely affected the performance of welding-brazing joints in Al/steel dissimilar metals. In this study, a short fiber-like surface morphology was fabricated on the butt surface of Q235 steel via laser. The interaction behavior between the short fibers and the molten pool was captured using a high-speed camera. Laser-arc hybrid welding-brazing was then employed to join Al (6061-T6) to the steel. This process successfully created a short fiber-like interface structure at the joint. The relationship between microstructure and mechanical properties was investigated, compared with Al/bare steel (ABS) joint. The research results indicated that the IMCs layer consisted of FeAl3 and Fe2Al5. The interface strength of the Al/short fiber-like surface structural steel (ASFSSS) joint reached 153.2 MPa, an 82.2 % increase compared to the ABS joint, which reached 84.1 MPa. When the ASFSSS joints without the reinforcement were bent to 58.2° and 25.2° in the longitudinal and transverse direction, respectively, they remained intact. However, cracks were discovered when the bending angle of the ABS reached 39.1° and 0° in the two directions. Numerical simulation revealed that the short fiber-like interface structure significantly reduced residual stress and improved the stress distribution in the weld, thereby enhancing the strength and toughness of Al/steel dissimilar joints. The crack propagation path in the ASFSSS joint was deflected into the weld when it encountered short fibers, and the fracture morphology presented the characteristic of ductile-brittle mixed fracture. © 2025

关键词： Dissimilar metals

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Enhancing the creep resistance in a RE-free cast Mg-Al-Ca alloy through microalloying of Ti

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Journal of Magnesium and Alloys 2025年第1期13卷 414-428页

作者： Zhuang Cui Yang Liu Ying Zeng Manping Liu Xiaochun Liu Shiwei Xu Xuefei Chen Qudong Wang School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013China National Engineering Research Center of Light Alloy Net Forming and Key State Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Advanced Technologies of Materials Ministry of EducationSchool of Material Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China Institute of Metals College of Material Science and EngineeringChangsha University of Science&TechnologyChangsha 410004China College of Mechanical and Vehicle Engineering Hunan UniversityChangsha 410082China

High temperature performance of magnesium alloys can be tailored by either grain size or precipitates in the grain *** this study,exceptional creep resistance was successfully acquired in a RE-free cast Mg-Al-Ca-Ti(AC51Ti)*** of Ti(0.01 wt.%)has been found to be beneficial to the improvement of the tensile creep resistance in a RE-free cast Mg-5Al-0.35Mn-(1Ca)(AC51)alloy,showing a low state creep rate(SCR)of 2.70×10^(−9)s^(−1)at 200℃/50 MPa,which is even better than that of many reported RE-containing Mg *** presence of trace Ti contributes to the substantial refinement and more uniform distribution of Al_(2)Ca precipitates in the *** the same time,the microalloying of Ti improves the solubility of Al and Ca in the *** is reasonable to believe that the microalloying of Ti induced re-organization of Al_(2)Ca precipitates,dissolved a larger amount of Al and Ca atoms into magnesium lattice,and increased the possibility of interaction between GB/dislocations and precipitates,which strongly correlates with the high temperature *** creep strengthening mechanisms primarily attributed to both second phase strengthening and solid solution strengthening were separately proposed based on the experimental investigations.

关键词： Magnesium alloy Creep mechanisms Al_(2)Ca phase Microalloying of Ti

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Progress and prospects for all-perovskite tandem solar cells

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Journal of Energy Chemistry 2025年第4期103卷 90-96页

作者： Qingyang Wu Jingwei Zhu Dewei Zhao Department of Mechanical and Electrical Engineering Liaoning Provincial College of CommunicationsShenyang 110122LiaoningChina College of Materials Science and Engineering and Engineering Research Center of Alternative Energy Materials and Devices Ministry of EducationSichuan UniversityChengdu 610065SichuanChina

All-perovskite tandem solar cells(TSCs)consist of a wide-bandgap(WBG,1.75-1.8 eV)top subcell and a low-bandgap(LBG,1.2-1.3 eV)bottom subcell,exhibit superior power conversion efficiencies(PCEs)compared to single-junction perovskite solar cells(PSCs).In addition,the advantages of lowtemperature solution preparation and low manufactu ring cost make the all-perovskite tandem solar cells widely concerned,and are considered to be one of the most potential next-generation high-performance thin film photovoltaic *** this perspective,we briefly summarize the state-of-the-art advances in monolithic all-perovskite TSCs focusing on the following aspects:LBG perovskite bottom subcells,WBG perovskite top subcells,and interconnecting layers(ICLs).We then discuss the primary strategies to improve their performa nce and finally highlight the perspective regarding the achievement of efficient and stable all-perovskite tandems.

关键词： Wide-bandgap perovskite top subcell Low-bandgap perovskite bottom subcell Interconnecting layer All-perovskite tandem solar cell Progress Prospect

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Research status and prospects of the fractal analysis of metal material surfaces and interfaces

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International Journal of Minerals,Metallurgy and materials 2025年第1期32卷 20-38页

作者： Qinjin Dai Xuefeng Liu Xin Ma Shaojie Tian Qinghe Cui Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced Materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

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Multicomponent Nacre-Like Heterogeneous Nanochannels with Ion Sieving and Light-Sensitivity Properties for Improved Energy Conversion

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ACS Applied materials and Interfaces 2025年第19期17卷 28693-28703页

作者： Zhou, Shan Liu, Menglin Zhang, Ruoming Gao, Yu Cong, Hailin Yu, Bing College of Materials Science and Engineering College of Chemistry and Chemical Engineering Institute of Biomedical Materials and Engineering Qingdao University Qingdao266071 China School of Mechanical Engineering School of Materials Science and Engineering Shandong University of Technology Zibo255000 China

Nanochannel membranes are currently being employed for selective ion transport and salinity gradient energy capture. However, the poor functionality of nanochannel membranes and the unfavorable influence of multivalent cations result in low energy conversion efficiency, limiting the energy conversion performance of nanochannel membranes. Herein, multicomponent nacre-like heterogeneous nanochannels composed of carboxymethyl chitosan (CMC)-intercalated composite two-dimensional (2D) GO, C3N4 nanosheets, and polyethylene terephthalate (PET) channels are developed using an interfacial assembly strategy. Benefiting from the asymmetric structure, the heterogeneous membrane achieves enhanced ion diffusion and unidirectional ion transport behaviors. Subsequently, a high power density of 8.46 W/m2 is achieved in artificial seawater and river water by the heterogeneous membrane. Notably, the introduction of CMC into 2D lamellar channels endows the heterogeneous membrane with outstanding ion sieving performance, thereby mitigating the unfavorable influence of divalent cations on energy conversion, reducing it from 32.08% to 19.85%. Furthermore, the heterogeneous membrane exhibits sensitive and stable light-responsive ion transport behavior, profiting from the light sensitivity of GO and C3N4 nanosheets, and an improvement of 11.29% in energy conversion performance can be accomplished with light irradiation. This work proposes an idea to design multifunctional nanochannel membranes to achieve highly efficient salinity gradient energy conversion. © 2025 American Chemical Society.

关键词： Nanosheets

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A self-assembling nanoplatform for pyroptosis and ferroptosis enhanced cancer photoimmunotherapy

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Light(science & Applications) 2025年第1期14卷 153-166页

作者： Zhichao Wang Yuqi Tang Quan Li Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast UniversityNanjing211189China Materials Science Graduate Program Kent State UniversityKentOH44242USA

The microenvironment of immunosuppression and low immunogenicity of tumor cells has led to unsatisfactory therapeutic effects of the currently developed *** cell death,such as pyroptosis and ferroptosis,can efficiently boost antitumor ***,the exploration of nanoplatform for dual function inducers and combined immune activators that simultaneously trigger pyroptosis and ferroptosis remains ***,a multifunctional pH-responsive theranostic nanoplatform(M@P)is designed and constructed by self-assembly of aggregation-induced emission photosensitizer MTCN-3 and immunoadjuvant Poly(l:C),which are further encapsulated in amphiphilic *** nanoplatform is found to have the characteristics of cancer cell targeting,pH response,near-infrared fluorescence imaging,and lysosome ***,after targeting lysosomes,M@P can cause lysosome dysfunction through the generation of reactive oxygen species and heat under light irradiation,triggering pyroptosis and ferroptosis of tumor cells,achieving immunogenic cell death,and further enhancing immunotherapy through the combined effect with the immunoadjuvant Poly(I:C).The anti-tumor immunotherapy effect of M@P has been further demonstrated in in vivo antitumor experiment of 4T1 tumor-bearing mouse model with poor *** research would provide an impetus as well as a novel strategy for dual function inducers and combined immune activators enhanced photoimmunotherapy.

关键词： immunotherapy cancer aggregation

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