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SSRN 2022年

作者： He, Cheng-Yu Zhao, Peng Gao, Xiang-Hu Liu, Gang La, Pei-Qing State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals School of Materials Science & Engineering Lanzhou University of Technology Lanzhou730050 China Research and Development Center for Eco-Chemistry and Eco-Materials State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou730000 China

Recent advances in high-entropy ceramic nanofilms have unlocked new possibilities to prepare high-performance solar-thermal conversion materials. However, using such materials for solar-thermal materials has not received enough attention thus far. Due to their species diversity and structure distinctiveness, these materials provide huge room to exploit more appropriate compositions for boosting solar-thermal performance. Herein, we design and prepare a novel spectrally selective absorber with high-entropy ceramic nanofilm by magnetron co-sputtering. Enabled by interface interference and intrinsic absorption effects, the as-deposited absorber exhibits decent solar absorptance of 96.3% and suppressed thermal emittance of 11%, leading to an impressive solar-thermal conversion efficiency (94.2%, under 400 ºС and 100 suns). Besides, due to the high configuration entropy of the absorption layers, the absorber exhibits superior thermal robustness after annealing at 400 ºС for 7 days. Further, the absorber can be well deposited on various substrates, including flexible cotton. Radiated by simulated sunlight, those absorber shows excellent temperature response;in particular, the surface temperature of the absorber on cotton readily increase to 80 ºС with 50 s under 1 sun. Featured with those competitive merits, the high-entropy ceramic nanofilm absorber empowers a distinct paradigm to investigate solar-thermal conversion, rendering it attractive for various solar-thermal applications. © 2022, The Authors. All rights reserved.

关键词： Entropy

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Origins of high ductility exhibited by an extruded magnesium alloy Mg-1.8Zn-0.2Ca:Experiments and crystal plasticity modeling

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Journal of materials Science & technology 2021年第25期84卷 27-42页

作者： Jie Wang Gaoming Zhu Leyun Wang Evgenii Vasilev Jun-Sang Park Gang Sha Xiaoqin Zeng Marko Knezevic National Engineering Research Center of Light Alloy Net Forming Shanghai Jiao Tong UniversityShanghai200240China Department of Mechanical Engineering University of New HampshireDurhamNH03824USA Advanced Photon Source Argonne National LaboratoryLemontIL60439USA School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing210094China State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai200240China

Low ductility and strength are major bottlenecks against Mg alloys’wide *** this work,we systematically design the composition and fabrication process for a low-alloyed Mg-Zn-Ca alloy,showing that it can be extruded at low temperatures(~250℃)and high speeds(~2 mm/s).After the extrusion,this alloy exhibits a substantially weakened basal texture,relatively small grain size,very high tensile elongation(~30%),and good *** origin of the considerably improved ductility was studied using a combination of three-dimensional atom probe tomography(3D-APT),transmission electron microscopy(TEM),electron backscattered diffraction(EBSD)in conjunction with surface slip trace analysis,in-situ synchrotron X-ray diffraction,and elasto-plastic self-consistent(EPSC)***-segregation of Zn and Ca atoms at a grain boundary is observed and associated with texture weakening and grain boundary mediated plasticity,both improving the *** basal slip and prismatic slip are identified as the dominant deformation systems in the alloy,the ratio between their slip resistances is substantially reduced relative to pure Mg and most other Mg alloys,significantly contributing to the improved ductility of the *** Mg-Zn-Ca alloy exhibiting excellent mechanical properties and low fabrication cost is a promising candidate for industrial productions.

关键词： Mg-Zn-Ca alloy Ductility Deformation mechanisms Crystal plasticity modeling Grain boundary mediated plasticity

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Transforming Waste to Power: Selective Control of Associated Impurity from Ferrous Sulfate Waste for the Preparation of Self-Doped Lifepo4

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SSRN 2024年

作者： Chen, Jian-An Li, Meixuan Deng, Xinyan Zhang, Wenjie Yao, Mingdi Zhang, Xiaoming Huang, Guoyong Xu, Shengming College of New Energy and Materials China University of Petroleum Beijing102249 China State Key Laboratory of Heavy Oil Processing College of Chemical Engineering China Ganfeng Lithium Group Co. LTD Xinyu338000 China Institute of Nuclear and New Energy Technology Tsinghua University Beijing100084 China Beijing Key Lab of Fine Ceramics Tsinghua University Beijing100084 China

The extraction of iron from ferrous sulfate, a byproduct of titanium dioxide production, for use in lithium iron phosphate (LiFePO4) electrodes not only presents an economic value but also mitigates the environmental burden of solid waste disposal. However, a key challenge lies in the effect of impurities in the titanium white waste, potentially impairing the electrochemical performance of lithium iron phosphate electrodes. This paper, based on the modulation of the impurity purification process and the first-principles theory of calculations (first-principles calculations), introduces a green, economical recycling route for the synthesised, self-doped lithium iron phosphate materials. The results show that the synthesised self-doped lithium iron phosphate exhibits commendable electrochemical performance. Specifically, LiFe0.94Ti0.06PO4 exhibits a discharge specific capacity of 136.6 mAh/g at 1C, while LiFe0.9Mn0.1PO4 exhibits excellent cycling performance, maintaining 92.7% capacity retention after 500 cycles. The process parameters for the co-precipitation synthesis of FePO4 precursors have been optimised, and the environmental superiority of the synthesised, self-doped lithium iron phosphate materials has been substantiated through a full life cycle assessment. This work provides a new method for the preparation of battery materials using iron resources from waste ferrous sulphate, and a new idea for recycling waste materials in the titanium field. © 2024, The Authors. All rights reserved.

关键词： Lithium-ion batteries

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Effect of the nano/microscale structure of biomaterial scaffolds on bone regeneration

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International Journal of Oral Science 2020年第1期12卷 10-24页

作者： Lisha Zhu Dan Luo Yan Liu Laboratory of Biomimetic Nanomaterials Department of OrthodonticsPeking University School and Hospital of StomatologyNational Engineering Laboratory for Digital and Material Technology of StomatologyBeijing Key Laboratory of Digital StomatologyBeijingChina State Key Laboratory of Heavy Oil Processing College of New Energy and MaterialsBeijing Key Laboratory of Biogas Upgrading UtilizationChina University of Petroleum(Beijing)BeijingChina

Natural bone is a mineralized biological material, which serves a supportive and protective framework for the body, stores minerals for metabolism, and produces blood cells nourishing the body. Normally, bone has an innate capacity to heal from ***, massive bone defects due to traumatic injury, tumor resection, or congenital diseases pose a great challenge to reconstructive surgery. Scaffold-based tissue engineering(TE) is a promising strategy for bone regenerative medicine, because biomaterial scaffolds show advanced mechanical properties and a good degradation profile, as well as the feasibility of controlled release of growth and differentiation factors or immobilizing them on the material surface. Additionally, the defined structure of biomaterial scaffolds, as a kind of mechanical cue, can influence cell behaviors, modulate local microenvironment and control key features at the molecular and cellular levels. Recently, nano/micro-assisted regenerative medicine becomes a promising application of TE for the reconstruction of bone defects. For this reason, it is necessary for us to have in-depth knowledge of the development of novel nano/micro-based biomaterial scaffolds. Thus, we herein review the hierarchical structure of bone, and the potential application of nano/micro technologies to guide the design of novel biomaterial structures for bone repair and regeneration.

关键词： structure stores protective

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A Flexible and Ultrasensitive Mxene-Based Capacitance Immunosensor for the Detection and Species Identification of Archaeological Silk Microtraces

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SSRN 2022年

作者： Zhou, Qingqing Wang, Lin Zheng, Hailing Peng, Zhiqin Hu, Zhiwen Zhou, Yang Wang, Bing Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education Zhejiang Sci-Tech University Hangzhou310018 China Key Scientific Research Base of Textile Conservation State Administration for Cultural Heritage China National Silk Museum Hangzhou310002 China Institute of Textile Conservation Zhejiang Sci-Tech University Hangzhou310018 China

The origin and dissemination of silk have been hotly debated in the field of archaeology, and the key to resolving this controversy lies in the detection and species identification of ancient silk traces. However, traditional methods are limited in their ability to analyze silks that are severely degraded or contaminated by pollutants. Therefore, a low-loss, high-sensitivity, fast and accurate detection method is urgently needed. In this study, a taxonomically specific anti-fibroin monoclonal antibody (anti-SF) was successfully prepared and a novel electrochemical immunosensor for detecting silk traces was proposed. Ti3C2Tx -MXene was anchored onto activated carbon cloth (ACC) to fabricate a nanoplatform, and anti-SF was subsequently introduced to complete the nanobioplatform. The specific capacitance of the ACC/MXene reached 892.5 mF cm-2 at a current density of 1 mA cm-2 , showing high electrochemical performance. Moreover, the immunosensor possessed a broad linear range of 10-2 -103 ng mL-1 and a detection limit of 2.15 pg mL−1 . In addition, the elaborate immunosensor exhibited satisfactory high specificity and reproducibility. In particular, the qualitative and quantitative performance of the immunosensor was excellent in the analysis of archaeological samples. Therefore, this work demonstrates that the proposed method not only provides a reliable analytical tool for exploring the origin and spread of ancient silk, but also adds to our understanding of the role of emerging materials such as MXene in the design of novel biosensors. © 2022, The Authors. All rights reserved.

关键词： Monoclonal antibodies

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Colorful Superhydrophobic Composite Coating for Efficient Passive Radiation Cooling

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SSRN 2023年

作者： Guo, Zhiguang Liu, Peng Sun, Yuqiu Huang, Xiulin Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science and Engineering Hubei University Wuhan438300 China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou730000 China CCCC SHEC Wuhan Harbour New Materials Co.Ltd. Wuhan430040 China Hubei Key Laboratory of Advanced Materials and Reinforcement Technology Research for Marine Environment Structures Wuhan430040 China

Radiation cooling is an ideal solution to the problems of environmental load and energy loss. Passive cooling is achieved by radiating heat into the external space through light scattering, total internal reflection, and other methods. In addition, radiant cooling layers are commonly used in the construction industry, where they are exposed to the atmosphere and their vulnerability to sand, dust, and reduced radiant cooling capacity. Therefore, radiant cooling layers incorporating superhydrophobic properties have emerged. In this work, we report a polyacrylate white coating based on silica and hollow glass beads as fillers, which is further modified with polydimethylsiloxane for superhydrophobicity. The coating has a strong solar reflectance (96%), mid-infrared emissivity (97%), and can effectively reduce the ambient temperature by 6.5°C under 1 standard solar intensity irradiation. In addition, two colored coatings were prepared for the aesthetics of architectural coatings, which also have good radiative cooling properties. More importantly, the excellent superhydrophobic property of the coating ensures the coating’s self-cleaning performanc and avoids the influence of dust on the radiant cooling layer. The excellent durability of the prepared coatings was demonstrated by various stability tests. Our work has great application prospects for energy loss and sustainable outdoor service. © 2023, The Authors. All rights reserved.

关键词： Energy dissipation

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Clinical translation and challenges of biodegradable magnesium-based interference screws in ACL reconstruction

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Bioactive materials 2021年第10期6卷 3231-3243页

作者： Ying Luo Chao Zhang Jue Wang Fangfei Liu Kelvin Wingho Chau Ling Qin Jiali Wang School of Biomedical Engineering Sun Yat-sen UniversityGuangzhou510006China Hanglok-Tech Co. Ltd.Hengqin New AreaChina State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing100083China Musculoskeletal Research Laboratory Department of Orthopaedics&TraumatologyThe Chinese University of Hong KongHong KongChina

As one of the most promising fixators developed for anterior cruciate ligament(ACL)reconstruction,biodegradable magnesium(Mg)-based interference screws have gained increasing attention attributed to their appropriate modulus and favorable biological properties during degradation after surgical ***,its fast degradation and insufficient mechanical strength have also been recognized as one of the major causes to limit their further application *** review focused on the following four ***,the advantages of Mg or its alloys over their counterparts as orthopaedic implants in the fixation of tendon grafts in ACL reconstruction were ***,the underlying mechanisms behind the contributions of Mg ions to the tendon-bone healing were ***,the technical challenges of Mg-based interference screws towards clinical trials were discussed,which was followed by the introduction of currently used modification methods for gaining improved corrosion resistance and mechanical ***,novel strategies including development of Mg/Titanium(Ti)hybrid fixators and Mg-based screws with innovative structure for achieving clinically customized therapies were ***,the advancements in the basic and translational research on the Mg-based interference screws may lay the foundation for exploring a new era in the treatment of the tendon-bone insertion(TBI)and related disorders.

关键词： Magnesium ACL reconstruction Interference screw Degradation Mechanical properties

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High-entropy-doping effect in a rapid-charging Nb₂O₅ lithium-ion battery negative electrode

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Nature Communications 2025年第1期16卷 1-12页

作者： Xu, Junling Xie, Fuqiang Huang, Lipeng Li, Nana Peng, Shang Ma, Wensheng Zhang, Kai Wu, Yanxue Shao, Lianyi Shi, Xiaoyan Chen, Jizhang Tao, Li Zhang, Kai Zhang, Zhonghua Wang, Yonggang Sun, Zhipeng School of Materials and Energy Guangdong University of Technology Guangzhou China Center for High Pressure Science and Technology Advanced Research (HPSTAR) Shanghai China School of Materials Science and Engineering Shandong University Jinan China Analysis and Test Center Guangdong University of Technology Guangzhou China Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and Engineering Nanjing Forestry University Nanjing China Key Lab of Advanced Optoelectronic Quantum Architecture and Measurement (Ministry of Education) School of Physics Beijing Institute of Technology Beijing China Frontiers Science Center for New Organic Matter Renewable Energy Conversion and Storage Center (RECAST) Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry Nankai University Tianjin China Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai China

Doping is an important approach to tailor materials’ properties, yet the success of doping can depend on factors such as ionic radii similarities. For materials like silicon or perovskite, doping is not only facile to implement but can also enhance material properties. However, for host lattice structures like Nb₂O₅, doping without causing phase change is challenging. Here, we introduce a high-entropy-doping effect in Nb₂O₅. Unlike traditional doping approaches, high-entropy-doping minimizes the chemical properties of doping elements and focuses solely on their quantities. By high-entropizing the doping elements (selecting 10–15 from Mg, Ca, Sr, Ba, Cr, Mn, Fe, Co, Ni, Cu, Zn, Al, Ga, In, Sn, Sb, Y, Mo, La, Ce) and keeping them within a certain range of doping concentrations (1–3 _mol%), a successful high-entropy-doping is achieved for Nb₂O₅ without phase change. The obtained high-entropy-doped (HED) Nb₂O₅ exhibits rapid-charging capabilities. At a rate of 40 A g⁻¹, the HED-Nb₂O₅ delivers a capacity of 80 mAh g⁻¹, whereas the undoped Nb₂O₅ fails to exceed 25 mAh g⁻¹. © The Author(s) 2025.

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Recent advances in g-CN-based heterojunction photocatalysts

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Journal of materials Science & technology 2020年第21期56卷 1-17页

作者： Yunfeng Li Minghua Zhou Bei Cheng Yan Shao College of Environmental and Chemical Engineering Xi’an Polytechnic UniversityXi’an710000China Hubei Key Laboratory of Wudang Local Chinese Medicine Research Hubei University of MedicineShiyan 442000China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Outpatient Taihe HospitalHubei University of MedicineShiyan 442000China

Semiconductor heterojunction photocatalysts have received much concern due to their great application prospect in solar energy utilization and *** construction of heterostructure with two or more semiconductor materials can integrate the advantages of multi-components to simultaneously improve the photo-induced charges separation,extend visible light absorption range and retain the high redox ability of ***,constructing of g-C3 N4-based heterostructure has become a hot focus due to the multiple merits of g-C3 N4,such as facile synthesis,high stability,unique optical and electronic *** review tries to give a comprehensive introduction and provide the possible tendency in design and fabrication of g-C3 N4-based heterojunction photocatalysts,especially in rational synthesis of type-II heterojunction,direct Z-scheme heterojunction,new type of S-scheme heterojunction,p-n heterojunction and Schottky ***,the special charges transfer mechanisms of g-C3 N4-based heterojunctions are discussed and their potential applications in photocatalytic water splitting,photo-degradation of contaminants and photo-reduction of CO2 into fuels are also ***,we attempt to propose some crucial issues based on the current research,which should be further investigated and resolved in this interesting research area.

关键词： Photocatalysis g-C3N4 Heterojunction Z-scheme S-scheme

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Addendum: Solution epitaxy of polarization-gradient ferroelectric oxide films with colossal photovoltaic current

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Nature communications 2024年第1期15卷 3878-3878页

作者： Lin, Chen Zhang, Zijun Dai, Zhenbang Wu, Mengjiao Liu, Shi Chen, Jialu Hua, Chenqiang Lu, Yunhao Zhang, Fei Lou, Hongbo Dong, Hongliang Zeng, Qiaoshi Ma, Jing Pi, Xiaodong Zhou, Dikui Wu, Yongjun Tian, He Rappe, Andrew M. Ren, Zhaohui Han, Gaorong State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China Center of Electron Microscope School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China Department of Chemistry University of Pennsylvania Philadelphia PA United States Oden Institute for Computational Engineering and Sciences University of Texas at Austin Austin 78712 TX United States Key Laboratory for Quantum Materials of Zhejiang Province Department of Physics School of Science Westlake University Hangzhou 310024 China Zhejiang Province Key Laboratory of Quantum Technology and Device Department of physics Zhejiang University Hangzhou 310027 China Center for High Pressure Science and Technology Advanced Research 201203 Shanghai China State Key Lab of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University 100091 Beijing China Institute of Advanced Semiconductors & Zhejiang Provincial Key Laboratory of Power Semiconductor Materials and Devices ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang University Hangzhou 311215 China Research Center for Intelligent Sensing Zhejiang Lab Hangzhou 311100 China State Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China

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