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P2/P3 Biphasic layered oxide cathode enabled by additional electron-holes on oxygen for high-capacity sodium-ion batteries

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Journal of Materials Science and technology 2025年 238卷 230-237页

作者： Mudassir, Hassan Muhammad Xie, Chenghao Xia, Fanjie Fang, Rui Chen, Qiushuang Liu, Zhaopei Dong, Tiancheng Liu, Fang Hu, Shan Jian, Zelang Wu, Jinsong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China Wuhan University of Technology Wuhan430070 China

Layered transition metal (TM) oxides have gained significant attention for achieving high specific capacity and energy density utilizing the lattice oxygen redox for sodium-ion batteries. However, the highly oxidized lattice oxygen cannot be fully reduced due to irreversible structural deformation, phase transition, and sluggish kinetics. Herein, the Cobalt (Co) content was tuned to synthesize a P2/P3- biphasic layered oxide cathode Na0.72Li0.24Co0.12Mn0.64O2 (NLM-Co12%), which exhibits pronounced lattice oxygen activity, leading to exceptional capacity and improved cyclability with superior structural stability. The distinct honeycomb ordering induces highly delocalized π-type interactions that generate additional electron holes on oxygen, providing a record energy density and specific capacity of 767.98 Wh kg−1 and 287.19 mAh g−1, respectively. The strategic incorporation of Co in the TM layers mitigates the sluggish kinetics during the electrochemical reactions and improves the diffusion kinetics. The addition of electron holes on Oxygen (O) is comprehensively investigated through different electrochemical and state-of-the-art spectroscopic techniques. Furthermore, in situ-XRD reveals the phase transition during Na+ insertion/extraction is eliminated due to the synergistic effect of the P2/P3 biphasic structure achieving superior structural stability. Benefiting from the superstructure ordering and P2/P3 biphasic structure, the NLM-Co12% electrode demonstrates simultaneously high lattice-oxygen activity and excellent structural stability, thus resulting in remarkable energy density and specific capacity. © 2025

关键词： Sodium-ion batteries

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Active Adjustable Coil Receiver for Adaptive Output Power Based on Wireless Power Transfer

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International Journal of Circuit Theory and Applications 2025年

作者： Dai, Zhongyu Wang, Huihui Ma, Yayun Li, Musong Zhou, Yitong Zhang, Xian State Key Laboratory of Intelligent Power Distribution Equipment and System Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Key Laboratory of Flexible DC Transmission Equipment and Technology Demonstration of Hebei Province Electrical Engineering Department Hebei University of Technology Tianjin China State Grid Tangshan Power Supply Company Tangshan China

The wireless power transfer (WPT) system operates under variable load conditions. During different stages of charging, the power required by the load varies. Therefore, the WPT needs to adjust the voltage and power in real-time to meet these differing demands. The power transfer power of WPT can be optimized for variable loads. This paper introduces an active adjustable coil receiver with adaptive output power. The end of the sliding rod is connected to the accessible part of each subcoil. The sliding rod can slide outward from the center of the coil or inward toward the center along the accessible part, determining the number of coil turns to be involved in coupling within the circuit. The proposed design can achieve the stabilized output power of ACR in the range of 10 to 30 W with a transmission distance varying from 5 to 10 cm, 10–38 W with a radial offset distance of 0.6–10 cm and 3–21 W with load of 20–40 (Formula presented.). The receiver can meet the different power requirements of the load and is not sensitive to factors such as transmission distance and offset. The system can reduce the complexity of charging and power supply system design and effectively promote the application of wireless power transmission in the field of multiload equipment. © 2025 John Wiley & Sons Ltd.

关键词： Inductive power transmission

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Study on glass colorization and reduction of multi-angle differences

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Ceramics International 2025年第12期51卷 15098-15106页

作者： Wang, Jinlei Wang, Tianqi Yang, Yang Chen, Shuyong Laishram, Devika Zheng, Jijie Peng, Saiao Jin, Kewu Yao, Tingting Yang, Dengfeng Shu, Lingxiu Li, Gang Zhang, Yongliang State Key Laboratory of Advanced Technology for Float Glass CNBM Research Institute for Advanced Glass Materials Group Co. Ltd Bengbu233000 China School of Physics Trinity College Dublin DublinD02PN40 Ireland Co. Ltd. Bengbu233000 China Department of Mining Metallurgy and Materials Engineering Université Laval QuebecG1V 0A6 Canada

Solar photovoltaic modules have a single color that cannot meet the requirements of architectural aesthetics. In this paper, starting from the glass cover of thin-film solar cells, to the color-coated glass (coral, green and blue) is prepared by magnetron sputtering with the aid of TFCalc software. TiO2/SiO2/TiO2/SiO2 multilayers with different thickness were prepared with an average transmittance above 73 %. The angle stability of the film color was investigated, and the color stability under different viewing angles can be improved by using high haze frosted glass as the substrate for the preparation of colored films. An average visible transmittance of 75.5 % was obtained in the coral film with the covering of the frosted glass. The use of high haze frosted glass to prepare colored film not only improves the transmittance of coated glass, but also reduces the angle dependence of color film, reduces light pollution, and facilitates the development of industrialization and PV building integration. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Color films

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Microenvironment-responsive living hydrogel containing engineered probiotic for treatment of massive bone defects

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Bioactive Materials 2025年 50卷 556-570页

作者： Fang, Haoyu Wang, Yanyi Li, Li Qin, Xiaotong Zhu, Daoyu Liu, Pei Yang, Qianhao Gao, Youshui Shi, Zhongmin Ma, Xin Zhong, Chao Chen, Yixuan Department of Orthopedic Surgery Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai 200233 China Center for Materials Synthetic Biology Shenzhen Institute of Synthetic Biology Shenzhen Institutes of Advanced Technology (SIAT) Chinese Academy of Sciences (CAS) Shenzhen 518055 China CAS Key Laboratory of Quantitative Engineering Biology Shenzhen Institute of Synthetic Biology Shenzhen Institutes of Advanced Technology (SIAT) Chinese Academy of Sciences (CAS) Shenzhen 518055 China State Key Laboratory of Food Nutrition & Safety Tianjin University of Science & Technology Tianjin 300457 China Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education) Tianjin University of Science & Technology Tianjin 300457 China

Self-activating and microenvironment-responsive biomaterials for tissue regeneration would address the escalating need for bone grafting, but remain challenging. The emergence of microbial living therapeutics offers vast potential in regenerative medicine, as genetically engineered probiotics possess efficient stimuli-responsiveness and tunable biological functions. Here, using elevated endogenous nitric oxide (NO) signals as a biological trigger in bone fracture injuries, a Living Responsive Regenerative Medicine (LRRM) strategy for in situ bone defect repair through real-time controlled release of bone morphogenetic protein-2 (BMP2) is proposed. The Escherichia coli Nissle 1917 (EcN) strain, genetically engineered to sense NO signals and correspondingly produce and secrete BMP2, was firstly encapsulated in gelatin methacryloyl (GelMA) microspheres and then embedded in a bulky hyaluronic acid methacryloyl (HAMA) hydrogel to form a living hydrogel device that circumvents immune attack and prevents bacterial leakage. In vivo multiple bone defect models demonstrated the efficacy of the living hydrogel in enhancing the maturation of bone callus, promoting neovascularization, and facilitating full-thickness bone union. Strategic incorporation of engineered probiotics and the bilayer-structured encapsulation system may emerge as an effective and microenvironment-responsive medicine approach for tissue regeneration. © 2025 The Authors

关键词： Bacterial engineering Living hydrogel Regenerative medicine Sensing-reporting Smart biomaterial

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When liquid crystals encounter structured light 20

When liquid crystals encounter structured light

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Emerging Liquid Crystal Technologies XX 2025

作者： Zhou, Le Liu, Yuanfeng Neyts, Kristiaan Shen, Yang Sun, Jingbo Zhou, Ji Physics Department Colorado School of Mines 1523 Illinois St. GoldenCO80401 United States School of Materials Science and Engineering State Key Laboratory of New Ceramics and Fine Processing Tsinghua University Beijing100084 China Department of Electronic and Computer Engineering State Key Laboratory of Advanced Displays and Optoelectronics Technologies The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong

ISBN: (纸本)9781510685222

Structured light refers to the light field tailored by various degrees of freedom including intensity, phase, and polarization states in both spatial and temporal domains, which may greatly vitalize the technologies in both optics, such as the next-generation optical communication as well as imaging and the materials science in both fabrications and characterizations. The structured characteristics of the structure light need materials also with structured optical properties that can generate or manipulate structured light in a straightforward way, which can be well satisfied by liquid crystals or glassy liquid crystals such as special spherulites. © 2025 SPIE.

关键词： Degrees of freedom (mechanics)

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Ab-initio insight into electrochemical characteristic of Zr2N monolayer as sodium ion battery by O and Se functional group strategy

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Journal of Molecular Liquids 2025年 429卷

作者： Yin, Jiangtao Li, Lingxia Zhang, Wenbo Gong, Shengli Ren, Junqiang Liu, Maocheng Lu, Xuefeng State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals School of Materials Science and Engineering Lanzhou University of Technology Lanzhou730050 China

As a novel type of two-dimensional electrode material, MXene with versatile surface functional groups can provide additional active sites, exhibiting high pseudo capacitance and large specific capacity. This article uses first principles to investigate the electrochemical properties of oxygen and halogen elements modified Zr2N as anode materials for sodium ion batteries. The results indicate that O and Se functionalized Zr2N material is more suitable as an anode material for sodium ion batteries compared to other functionalized materials. Zr2NT2 (Zr2NO2 and Zr2NSe2) have low diffusion barriers to facilitate the diffusion of sodium ions, with a theoretical capacity of 293.29 mAh/g and 151.29 mAh/g, respectively. The open circuit voltage is in the range of 0–1 V, which can prevent the formation of lithium dendrites and ensure the safe operation of the battery. These characteristics are attributed to the redistribution of surface charges for functionalized Zr2N, which results in uniform interaction forces between adsorbed atoms and the matrix, thereby improving the adsorption stability of sodium ions. In summary, this study reveals the energy storage performance mechanism of O and Se functionalized MXene electrode materials at the microscale, laying a solid foundation for subsequent experimental preparation. © 2025 Elsevier B.V.

关键词： Active material Electronic properties First-principles calculations MXene Sodium-ion batteries

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Boosting aqueous nickel-zinc battery stability with bimetallic ion-integrated 1D metal-organic nanowires

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Science China Chemistry 2025年

作者： Yihao Chen Jin Liang Yichun Su Guoyin Zhu Hengyue Xu Hongye Ding Guangxun Zhang Dianheng Yu Zizhou Shen Yizhou Zhang Wei Huang Huan Pang School of Chemistry and Chemical Engineering Yangzhou University Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM) School of Flexible Electronics (Future Technologies) Nanjing Tech University (NanjingTech) Institute of Advanced Materials and Flexible Electronics (IAMFE) School of Chemistry and Materials Science Nanjing University of Information Science & Technology Department of Chemistry Tsinghua University State Key Laboratory of Coordination Chemistry Nanjing University

Limited by low conductivity,designing cathode materials with excellent electron transfer efficiency for high-performance nickel-zinc batteries （NZBs） remains *** this study,a series of bimetallic metal-organic nanowires were fabricated by doping M ions in NiNTA,resulting in NiMNTA (M=Mg2+,Mn2+,Co2+,Zn2+,Ag+),and NixCo6-xNTA （x=1,2,3,4,5）.The proportions and types of metal ions can be modified without altering the initial coordination structure.X-ray absorption fine structure spectroscopy （XAFS） revealed that only M–O bonds,not metal bonds,were present in the *** performance of Ni2Co4NTA as the cathode for aqueous NZBs was significantly improved,achieving the maximum energy density of 279.17Wh kg-1with the high cycle stability （retention rate of 72.0%after 1,000 cycles）.The flexible Ni2Co4NTA//Zn@carbon cloth battery employing gel electrolyte also exhibits the excellent Coulombic efficiency of 96%after 350 *** approach shows considerable potential for designing one-dimensional materials with bimetallic modifications,providing new strategies for developing cathode materials for NZBs with high specific capacity and cycle stability.

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Recent Advances in Wide-Range Temperature Metal-CO_(2)Batteries:A Mini Review

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Nano-Micro Letters 2025年第4期17卷 435-453页

作者： Xuejing Zhang Ning Zhao Hanqi Zhang Yiming Fan Feng Jin Chunsheng Li Yan Sun Jiaqi Wang Ming Chen Xiaofei Hu School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003People’s Republic of China Engineering Research Center of Energy Storage Materials and Devices Ministry of EducationSchool of ChemistryXi’an Jiaotong UniversityXi’an 710049People’s Republic of China State Key Laboratory for Strength and Vibration of Mechanical Structures Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China Key Laboratory of Advanced Electrode Materials for Novel Solar Cells for Petroleum and Chemical Industry of China School of Chemistry and Life SciencesSuzhou University of Science and TechnologySuzhou 215009People’s Republic of China Department of Chemistry and Biochemistry Northern Illinois UniversityDeKalbIL 60115USA School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002People’s Republic of China

The metal-carbon dioxide batteries,emerging as high-energy-density energy storage devices,enable direct CO_(2)utilization,offering promising prospects for CO_(2)capture and utilization,energy conversion,and ***,the electrochemical performance of M-CO_(2)batteries faces significant challenges,particularly at extreme *** such as high overpotential,poor charge reversibility,and cycling capacity decay arise from complex reaction interfaces,sluggish oxidation kinetics,inefficient catalysts,dendrite growth,and unstable *** significant advancements at room temperature,limited research has focused on the performance of M-CO_(2)batteries across a wide-temperature *** review examines the effects of low and high temperatures on M-CO_(2)battery components and their reaction mechanism,as well as the advancements made in extending operational ranges from room temperature to extremely low and high *** discusses strategies to enhance electrochemical performance at extreme temperatures and outlines opportunities,challenges,and future directions for the development of M-CO_(2)batteries.

关键词： M-CO_(2)batteries Wide-range temperature Electrolytes Interfaces Electrode reactions

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A Positive and Negative-Sequence Equivalent Circuit Model for Linear Induction Machine Adapted to Urban Rail Transit

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IEEE Transactions on Transportation Electrification 2025年

作者： Guo, Yingcong Xu, Wei Ge, Jian Shangguan, Yongdao Xiao, Han Tang, Yirong Southwest Jiaotong University School of Electrical Engineering Chengdu610031 China Beijing100190 China University of Chinese Academy of Sciences School of Electronic Electrical and Communication Engineering Beijing101408 China Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Technology School of Electrical and Electronic Engineering Wuhan430074 China

The equivalent circuit model is a crucial tool for estimating the performance of linear induction machines (LIMs), and it is widely used in design, optimization, etc. However, the conventional model which does not account for the asymmetrical current is not as precise in certain scenarios. Such asymmetrical current is caused by the inherent end effect in LIMs, which persists even when the machine is powered by a symmetrical voltage source. In this paper, a novel equivalent circuit model is proposed to enhance the precision of analyzing LIMs performance under asymmetrical current. Firstly, the relationship between current, back electro-motive force (EMF) and voltage is established by analyzing the positive and negative-sequence airgap magnetic field. Secondly, the excitation source is converted from symmetrical phase voltage to positive and negative-sequence current by solving the circuit constraint equation. Finally, a positive and negative-sequence equivalent circuit model is constructed and the LIM performance is further analyzed. The proposed model is thoroughly validated through comparison with other methods and experimental data. © 2015 IEEE.

关键词： Urban transportation

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Polyoxometalated metal-organic framework superstructure for stable water oxidation

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Science (New York, N.Y.) 2025年第6745期388卷 430-436页

作者： Yue, Kaihang Lu, Ruihu Gao, Mingbin Song, Fei Dai, Yao Xia, Chenfeng Mei, Bingbao Dong, Hongliang Qi, Ruijuan Zhang, Daliang Zhang, Jiangwei Wang, Ziyun Huang, Fuqiang Xia, Bao Yu Yan, Ya State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai China School of Chemistry and Chemical Engineering State Key Laboratory of Materials Processing and Die & Mould Technology Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education) Hubei Key Laboratory of Material Chemistry and Service Failure Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology (HUST) Wuhan China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing China School of Chemical Sciences University of Auckland Auckland New Zealand National Engineering Laboratory for Methanol to Olefins Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian China Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai Synchrotron Radiation Facility Shanghai China Center for High Pressure Science and Technology Advanced Research Shanghai China Key Laboratory of Polar Materials and Devices (MOE) Department of Electronics East China Normal University Shanghai China Multiscale Porous Materials Center Institute of Advanced Interdisciplinary Studies and School of Chemistry and Chemical Engineering Chongqing University Chongqing China College of Energy Material and Chemistry Inner Mongolia Key Laboratory of Low Carbon Catalysis Inner Mongolia University Hohhot China State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai China Center for Next-Generation Energy Materials and School of Chemical Engineering Sungkyunkwan University (SKKU) Seobu-ro Jangan-guGyeonggi-do Suwon South Korea

Stable, nonprecious catalysts are vital for large-scale alkaline water electrolysis. Here, we report a grafted superstructure, MOF@POM, formed by self-assembling a metal-organic framework (MOF) with polyoxometalate (POM). In situ electrochemical transformation converts MOF into active metal (oxy)hydroxides to produce a catalyst with a low overpotential of 178 millivolts at 10 milliamperes per square centimeter in alkaline electrolyte. An anion exchange membrane water electrolyzer incorporating this catalyst achieves 3 amperes per square centimeter at 1.78 volts at 80°C and stable operation at 2 amperes per square centimeter for 5140 hours at room temperature. In situ electrochemical spectroscopy and theoretical studies reveal that the synergistic interactions between metal atoms create a fast electron-transfer channel from catalytic iron and cobalt sites, nickel, and tungsten in the polyoxometalate to the electrode, stabilizing the metal sites and preventing dissolution.

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