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17th IEEE International Conference on Solid-State and Integrated Circuit technology, ICSICT 2024

作者： Lei, Wenyu Wen, Xiaokun Di, Boyuan Xu, Xinyue Chang, Haixin Zhang, Wenfeng School of Materials Science and Engineering Huazhong University of Science and Technology Key Laboratory of Material Processing and Die & Mould Technology Wuhan430074 China Shenzhen R&D Center Huazhong University of Science and Technology Shenzhen518000 China

ISBN: (纸本)9798350361834

In this paper, three types of ultra-thin interfacial oxide layers including GeO2, Al2O3, and SiO2, are designed to inserted into the interface of MoTe2/Ge heterojunction to investigate its impact on the photoelectric performance. The device with GeO2 interfacial layer exhibits the maximum responsivity and detectivity as well as the relatively large rectification ratio, reaching values of 1.38 A/W, 1.32× 10 13 Jones, and 140, respectively. For the device with Al2O3 interfacial layer, the maximum rectification ratio and the relatively high detectivity are achieved, reaching values of 807 and 1.56× 10 11 Jones, respectively. While for the MoTe2/Ge heterojunction with SiO2 interfacial layer, which shows an ideality factor of 2.14 and the lowest rectification ratio together with the detectivity. These results indicate that both the interface quality and bandgap of ultrathin interfacial layer would be crucial for the photoelectronic performance of MoTe2/Ge heterojunction. © 2024 IEEE.

关键词： Tellurium compounds

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Trace of Atomically Dispersed Pd Enables Unprecedented Butadiene Semihydrogenation Performance Over Copper Catalyst

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ACS Catalysis 2025年第5期15卷 3810-3822页

作者： Zhao Wang Hao Yuan Jian Tao Shu-Lin Liu Ying Hong Zhi-Yi Hu Jian Zhang Bao-Lian Su The State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 P. R. China State Key Laboratory of Solidification Processing School of Materials Science and Engineering Northwestern Polytechnical University Xi’an Shaanxi 710000 P. R. China The State Key Laboratory of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 P. R. China；Laboratory of Inorganic Materials Chemistry (CMI) University of Namur 61 rue de Bruxelles Namur B-5000 Belgium

Semihydrogenation plays a key role in industrial hydrorefining of light alkenes, with a market above 400 billion by 2027. The high cost of commercial palladium-based catalysts strongly calls for innovation but with great challenges. Herein, copper nanoparticles decorated with a minimized ppm of Pd are developed through a chemical plating process to integrate the catalytic advantages of copper and palladium for achieving maximized catalysis in the semihydrogenation of a fatal impurity of butadiene in alkene feedstocks. The developed Pd–Cu catalyst (i.e., 114 ppm of Pd in Pd0.0033Cu1/TiO2) exhibits an unprecedented catalytic performance superior to commercial Pd/Al2O3, with 100% butene selectivity above 90% of butadiene conversion over 130 h on stream at 90 °C. Further exploration reveals that the atomically dispersed Pd on Cu nanoparticles, obtained at ultralow ppm levels of Pd loading, induces a hidden but critical H2trap, which concentrates H2on the Pd site for further H2dissociation that offers intermediate hydrogen atoms to the tandem butadiene semihydrogenation over the third layer of Cu atoms neighboring Pd through hydrogen spillover. Moreover, a threshold on Pd density was identified at Pd/Cu surficial atomic ratio of 1/138 (i.e., Pd0.0033Cu1/TiO2) for maximizing butadiene semihydrogenation performance, based on an extreme collaboration between Pd for H2dissociation and Cu for butadiene hydrogenation. This work provides important guidance for developing noble metal-saving catalysts in industrial applications.

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Hierarchical microstructure enables high strength and good ductility in as-cast Fe_(27)Ni_(35)Cr_(18.25)Al_(13.75)Co_(2)Ti_(2)Mo_(2) high-entropy alloy

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Journal of materials Science & technology 2024年第12期179卷 9-21页

作者： Jiacheng Niu Zhiqiang Fu Weiping Chen Tiwen Lu Liangyan Hao Wei Xiong Haiming Wen Guangdong Key Laboratory for Advanced Metallic Materials Processing South China University of TechnologyGuangzhou 510640China National Engineering Research Center of Near-net-shape Forming for Metallic Materials South China University of TechnologyGuangzhou 510640China Key Laboratory of Pressure Systems and Safety Ministry of EducationEast China University of Science and TechnologyShanghai 200237China Physical Metallurgy and Materials Design Laboratory Department of Mechanical Engineering and Materials ScienceUniversity of PittsburghPittsburghPA15261United States of America Department of Materials Science and Engineering Missouri University of Science and TechnologyRollaMissouri 65409United States of America

As-cast alloys often require complex thermomechanical processing to obtain a hierarchical structure to achieve a good combination of strength and *** in this work,a novel hierarchical Fe_(27)Ni_(35)Cr_(18.25)Al_(13.75)Co_(2)Ti_(2)Mo_(2) high-entropy alloy(HEA)with ultra-high tensile strength and excellent ductility was fabricated by direct *** as-cast alloy exhibits hierarchical structure with an ul-trafine lamellar microstructure(ULM),ultrafine rhombus microstructure(URM),ultrafine vermicular mi-crostructure(UVM),nanosized precipitates and spinodal decomposition(SP)that develops during casting and *** incompatibility of face-centered cubic(FCC)and body-centered cubic(BCC)phases in the deformation process leads to heterogeneous deformation-induced(HDI)hardening,which brings the alloy a tensile yield strength(YS)of~1056 MPa,an ultimate tensile strength(UTS)of~1526 MPa and a total elongation(El)of~15.6%.Additionally,the numerous interfaces generated by the hierarchical structure absorb the energy during deformation,effectively retarding the dislocation motion and causing strong work-hardening.

关键词： Direct casting High-entropy alloy Hierarchical microstructure Mechanical properties

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Combining printing and nanoparticle assembly:Methodology and application of nanoparticle patterning

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The Innovation 2022年第4期3卷 30-43页

作者： Weidong Zhao Yanling Yan Xiangyu Chen Tie Wang National Engineering Research Center for Advanced Polymer Processing Technology College of Materials Science and EngineeringHenan Province Industrial Technology Research Institute of Resources and MaterialsKey Laboratory of Advanced Material Processing&Mold(Ministry of Education)Zhengzhou UniversityZhengzhou 450002China Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living BiosystemsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Life and Health Research Institute School of Chemistry and Chemical EngineeringTianjin University of TechnologyTianjin 300384China

Functional nanoparticles(NPs)with unique photoelectric,mechanical,magnetic,and chemical properties have attracted considerable *** NPs rather than individual NPs are generally required for sensing,electronics,and ***,the transformation of functionalNPaggregates into scalable,controllable,and affordable functional devices remains *** is a promising additive manufacturing technology for fabricating devices fromNPbuilding blocks because of its capabilities for rapid prototyping and versatile multifunctional *** paper reviews recent advances in NP patterning based on the combination of self-assembly and printing technologies(including two-,three-,and four-dimensional printing),introduces the basic characteristics of these methods,and discusses various fields of NP patterning applications.

关键词： printing nanoparticle versatile

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Ballistic performance of spaced multi-ply soft fabrics: Experimental and numerical investigation

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Defence technology（防务技术） 2024年第4期34卷 143-155页

作者： Zhongwei Zhang Xiaoning Yang Yuan Lin Ziming Xiong Yuhang Xiang Yi Zhou Mingyang Wang State Key Laboratory of Explosion&Impact and Disaster Prevention&Mitigation Army Engineering University of PLANanjing 210007China School of Mechanical Engineering Nanjing University of Science&TechnologyNanjing 210007China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China Postdoctoral Station of Civil Engineering Army Engineering University of PLANanjing 210007China

It has been reported that the ply gap influences the ballistic resistance of spaced multi-ply fabric systems,but its working mechanism was not well-understood. This paper reports the experimental and numerical approaches and results of an investigation on the mechanisms that enable the improved ballistic performance of spaced multi-ply systems. Penetration tests were performed over a range of impact velocities ranging from 200 m/s to 400 m/s. The results confirmed that the ply gap is beneficial to the energy absorption capability of the systems. This is because the front plies tend to absorb more energy when they are not immediately constrained by the rear plies. During a ballistic event, the gap relieves the reflection of the compressive pulse, prolonging the projectile engagement time with the front plies;on the other hand, the rear plies become increasingly less active in dissipating energy as the gap *** the gap is sufficiently widened to avoid any interference between the plies before the failure of the front ply, the responses of the whole system no longer vary. It was also found that the ballistic performance of the spaced systems is influenced by ply thickness, impact velocity, and the stacking order of the ply gap.

关键词： Energy absorption capability Ply gap Ballistic performance The front ply The rear ply

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Recent advances in microenvironment regulation for electrocatalysis

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National Science Review 2024年第12期11卷 38-58页

作者： Zhiyuan Xu Xin Tan Chang Chen Xingdong Wang Rui Sui Zhongbin Zhuang Chao Zhang Chen Chen Engineering Research Center of Advanced Rare Earth Materials Department of Chemistry Tsinghua University Research Institute of Petroleum Processing SINOPEC State Key Lab of Organic-Inorganic Composites Beijing University of Chemical Technology MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low-Carbon Technologies School of Materials Science and EngineeringTianjin University of Technology

High-efficiency electrocatalysis could serve as the bridge that connects renewable energy technologies,hydrogen economy and carbon capture/utilization, promising a sustainable future for humankind. It is therefore of paramount significance to explore feasible strategies to modulate the relevant electrocatalytic reactions and optimize device performances so as to promote their large-scale practical *** regulation at the catalytic interface has been demonstrated to be capable of effectively enhancing the reaction rates and improving the selectivities for specific products. In this review we summarize the latest advances in microenvironment regulation in typical electrocatalytic processes(including water electrolysis, hydrogen–oxygen fuel cells, and carbon dioxide reduction) and the related in situ/operando characterization techniques and theoretical simulation methods. At the end of this article, we present an outlook on development trends and possible future directions.

关键词： microenvironment regulation electrical double layer hydrogen electrocatalysis oxygen electrocatalysis CO reduction reaction

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Spin angular momentum engineering within highly localized focal fields: from simple orientation to complex topologies

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Photonics Research 2025年第4期13卷 995-1009页

作者： YONGXI ZENG YANZHONG YU JIAN CHEN HOUAN TENG MUSHENG CHEN PINGHUI WU QIWEN ZHAN College of Physics and Information Engineering Quanzhou Normal University School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology Fujian Provincial Key Laboratory for Advanced Micro-nano Photonics Technology and Devices & Key Laboratory of Information Functional Material for Fujian Higher Education

Optical skyrmions, as quasiparticles with non-trivial topological structures, have garnered significant attention in recent years. This paper proposes a method for customized spin angular momentum (SAM) distribution in highly localized focal fields, thereby enabling the generation of SAM skyrmion and bimeron topologies. The skyrmionic SAM textures can be flexibly controlled, such as polarity, vorticity, and helicity. In addition, the two-dimensional projection plane can be arbitrarily oriented within three-dimensional space.

关键词： Bose Einstein condensates Circular polarization Information processing Light matter interactions Optical fields Optical manipulation

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Accurate simulation on the forming and failure processes of fiber metal laminates: A review

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International Journal of Lightweight materials and Manufacture 2023年第3期6卷 344-356页

作者： Chen, Yizhe Yang, Yusen Wang, Zhuoqun Wang, Hui Li, Jun Hua, Lin Hubei Key Laboratory of Advanced Technology for Automotive Components Wuhan University of Technology Wuhan430070 China Hubei Collaborative Innovation Center for Automotive Components Technology Wuhan430070 China Jiangsu Xinyang New Material Co. Ltd. Yangzhou225000 China

Fiber metal laminates (FMLs) are a kind of composite material prepared by alternately arranging fiber layers and metal sheets at a certain temperature and pressure. It has been widely used in aerospace and automobile transportation for its excellent combined mechanical properties. For the forming and failure processes of FMLs, the interfacial behavior and damage evolution of components are hard to be observed experimentally. Therefore, it is of great importance to simulate them accurately. In this article, the development and application of FMLs were first introduced. Then the comparison of constitutive models in FMLs simulation was given, especially the dynamic constitutive model applied to the metal layer. After that, the important aspects of damage evolution, interface behavior, and model optimization in the simulation on the forming and failure process of FMLs were analyzed, and the emphasis is on the nonlinear progressive damage model of different materials, the construction of cohesive zone model and superior meshing methods. Furthermore, the experimental verifications of FMLs simulation were given. It is shown that the deformation behavior and damage characteristics of various kinds of FMLs during forming and failure processing can be accurately predicted by reasonable numerical simulation. Eventually, the future outlooks for numerical simulation of FMLs was proposed. Through this review, scholars and engineers who are interested in FMLs can systematically understand the numerical simulation work of FMLs, which is helpful in improving the quality of research in this field. © 2023 The Authors

关键词： Constitutive models

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Effect of phosphate conversion film on fatigue and corrosion fatigue behavior of an as-rolled Mg–3.08Zn–0.83Al(in wt.%)alloy

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Journal of Iron and Steel Research International 2023年第12期30卷 2557-2565页

作者： Bao-jie Wang Dao-kui Xu Shuo Wang Xiang-bo Xu En-hou Han School of Environmental and Chemical Engineering Shenyang Ligong UniversityShenyang110159LiaoningChina Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang110016LiaoningChina Binzhou Institute of Technology Binzhou256606ShandongChina Shandong Key Laboratory of Advanced Aluminium Materials and Technology Binzhou256606ShandongChina Key Lab of Electromagnetic Processing of Materials Ministry of EducationNortheastern UniversityShenyang110819LiaoningChina

Through investigating and comparing the fatigue behavior of an as-rolled Mg–3.08Zn–0.83Al(in wt.%)alloy performing surface phosphate conversion film treatment,it revealed that the determined fatigue strength of surface treated samples at 106 cycles in air was 65 MPa,whereas the fatigue strength was only 35 MPa when tested in 3.5 wt.%NaCl *** analysis demonstrated that in air,the fatigue crack initiation was mainly dominated by the interaction between the retarding effect of phosphate conversion film on cyclic slips occurring in the underneath *** the matrix cannot endure the accumulated stress concentration due to the irreversibility of cyclic slips,the fatigue crack will preferentially initiate at sample *** the phosphate conversion film cracked easily under the cyclic loading and lost its protectiveness on the substrate in 3.5 wt.%NaCl solution,fatigue cracks were preferentially nucleated at the localized corrosion pits.

关键词： Mg alloy Corrosion fatigue Surface film Pitting Crack initiation

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Promising commercial fabrics with radiative cooling for personal thermal management

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Science Bulletin 2022年第3期67卷 229-231页

作者： Xin Zhang Chuntai Liu Changyu Shen Xianhu Liu National Engineering Research Center for Advanced Polymer Processing Technology Key Laboratory of Advanced Material Processing&Mold(Ministry of Education)Zhengzhou UniversityZhengzhou 450002China

With global warming,the need for cooling is *** 15%of the world’s electricity consumption and 10%of greenhouse gas emissions are due to cooling systems[1],mainly because a large amount of cooling load is used to reduce the temperature of the environment or objects and cannot be efficiently applied to the human ***,personal thermal management(PTM)as an efficient cooling method has gained widespread attention in recent years[2,3].Researchers from Stanford University have successfully produced nano-polyethylene that can effectively reduce the temperature of the human body fabric[4].However,to ensure a high transmittance of the fabric through the atmospheric window(wavelength:8<λ<13μm),its thickness is *** effect of solar heat transfer increases as the thickness of the fabric decreases,so fabrics that can effectively manage human heat remain a challenge.

关键词：辐射制冷 gained fabric

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