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Volume-complementary bipolar layered oxide enables stable symmetric sodium-ion batteries

Nano Research 2024年第5期17卷 4125-4133页

作者： Bo Peng Feng Wang Nazir Ahmad Lai Yu Shenghua Chen Genqiang Zhang School of Materials Science and Engineering Key Laboratory of Efficient Conversion and Solid-state Storage of Hydrogen and Electricity of Anhui ProvinceAnhui University of TechnologyMa’anshan 243002China Hefei National Research Center for Physical Sciences at the Microscale Chinese Academy of Sciences(CAS)Key Laboratory of Materials for Energy ConversionDepartment of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China National Innovation Platform(Center)for Industry-Education Integration of Energy Storage Technology School of Chemical Engineering and TechnologyXi’an Jiaotong UniversityXi’an 710049China

The commercialization of sodium-ion batteries is based on developing low-cost,highly stable,and safe cathode and anode ***,the promising hard carbon anode and layered oxide cathode suffer from low sodium-embedded potential near 0.1 V and severe phase transitions,which cause safe problem and short lifespan,***,we design a low-strain bipolar P2-Na_(0.7)Ni_(0.25)Fe_(0.2)Ti_(0.55)O_(2) to solve the mentioned obstacles,whereas(Ni,Fe)and Ti provide charge compensation when it is used as cathode and anode,*** is revealed that the bipolar layered oxide undergoes solid-solution reaction when used as cathode or anode,and exhibits volume-complementary feature in a sodium-ion full-cell,as identified by in-situ X-ray ***,the safe symmetric sodium-ion full-cell exhibits excellent cyclic stability with 91.7%capacity retention after 200 *** work will provide a new horizon for designing safe and stable sodium-ion batteries.

关键词： sodium-ion batteries bipolar layered oxides solid-solution reaction volume complementation symmetric battery

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Thermodynamically controllable synthesis of ZIF-8 exposing different facets and their applications in single atom catalytic oxygen reduction reactions

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Nano Research 2023年第7期16卷 9618-9624页

作者： Runze Ma Qiheng Li Jun Yan Yu Tao Shouyao Hu Donghao Liu Jiaxin Gong Yu Xiong College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Solid State ChemistryUniversity of Science and Technology BeijingBeijing 100083China

The development of thermodynamically controllable synthetic strategy to manipulate the morphology of ZIF-8 without capping agent is essential to help understanding their facet effect and the structure-activity relationship of single atom catalysts derived from ***,we prepared ZIF-8 with different morphologies(cube,truncated rhombododecahedral and rhombododecahedral)and thus area ratio of exposed{100},{110}facets by a thermodynamically controllable synthetic *** the reaction proceeds under room temperature(30℃),the assembling of ZIF-8 followed an area-reducing layered growth mode,while switched to an integral layered growth mode at lower temperature-40℃.Moreover,this strategy also works to obtain ZIF-8 encapsulated with metal precursors(Fe(acac)_(3),Cu(acac)_(2)and Co(acac)_(2)).Single Fe atom anchored on nitrogen doped carbon catalysts(SA-Fe/CN)derived from Fe-ZIF-8 retain their original morphologies and the unsaturated surface-active sites on{100}facet,which further displays different catalytic performance towards oxygen reduction reaction(ORR).This work not only reveals the different growth pattern of ZIF-8,but also points out a new direction for designing and synthesizing MOFs with different morphology rationally.

关键词： ZIF-8 facet effect single atom catalyst oxygen reduction reaction

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A highly visible-transparent thermochromic smart window with broadband infrared modulation for all-season energy savings

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国家科学评论（英文版） 2025年第2期12卷 191-201页

作者： Yi Jiang Yunlong Wang Deshuo Kong Zipeng Chen Zhengwei Yang Ningning Cao Haowen Chi Shining Zhu Qiuhong Zhang Jia Zhu Bin Zhu National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional MaterialsFrontiers Science Center for Critical Earth Material CyclingCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China Key Laboratory of High Performance Polymer Material and Technology of MOE Department of Polymer Science and EngineeringSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210093China

Thermochromic smart windows effectively reduce the energy consumption for buildings through passive light modulation including the transmission ofvisible(TVis)and near-infrared(TNIR)light,and the emissivity of mid-infrared light(εMIR)in response to ambient temperature ***,thermochromic windows that maintain high TVis while modulating TNIR and εMIR simultaneously are highly desirable but still ***,we develop a thermochromic smart window based on a two-way shape memory polymer to enable reversible transformation and achieve TNIR modulation of 44.0％andεMIR modulation of 76.5％while maintaining high TVis(＞50％).Compared to traditional windows based on silica glass,this device shows 4℃ lower temperature in summer daytime,2℃ higher in winter daytime,and 1℃ higher in spring *** is expected that our device can achieve greater annual energy savings in comparison with commercial glass anywhere in the world and promote the progress of thermochromic windows for energy-efficient buildings.

关键词： thermochromic smart window visible transparency infrared modulation two-way shape memory polymer

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Growth of two-inch free-standing heteroepitaxial diamond on Ir/YSZ/Si(001)substrates via laser-patterned templates

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Journal of Semiconductors 2024年第9期45卷 4-6页

作者： Pengfei Qu Peng Jin Guangdi Zhou Zhen Wang Zhanguo Wang Laboratory of Solid-State Optoelectronic Information Technology Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

As an ultra-wide bandgap semiconductor,diamond garners significant interest due to its exceptional physical properties^([1–3]).These superior characteristics make diamonds highly promising for applications in power electronics^([4]),deep-ultraviolet detectors^([5]),high-energy particle detectors^([6]),and quantum devices based on color centers^([7]).

关键词： template exceptional diamond

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Coexistence of All-Order Topological states in a Three-Dimensional Phononic Topological Crystalline Insulator

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Research 2024年第2期2023卷 511-518页

作者： Hua-Shan Lai Hao Chen Chu-Hao Xia Si-Yuan Yu Cheng He Yan-Feng Chen National Laboratory of Solid State Microstructures&Department of Materials Science and Engineering Nanjing UniversityNanjng 210093China Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjng 210093China Jiangsu Key Laboratory of Artificial Functional Materials Nanjing University Nanjing 210093China

Classical-wave topological materials lacking intrinsic half-integer spins are less robust while more ***,we explore a single 3-dimensional phononic topological crystalline insulator that simultaneously exhibits a whole family of first-order quadratic surface,second-order hinge,and third-order corner states within the same *** a topological crystalline insulator hosting all-order phases originates from the different topological nature when hierarchically projected onto different facets and lower dimensions,thus free from trivial cladding *** work offers an ideal platform for either robust wave propagation or localization in on-demand dimensions and may facilitate dimension division multiplexing technology.

关键词： topological dimensions crystalline

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Molecular design of recyclable thermosetting polyimide and its composite with excellent mechanical and tribological properties

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Friction 2024年第3期12卷 452-461页

作者： Xiaoyue WANG Zenghui YANG Tingmei WANG Qihua WANG Xinrui ZHANG Song LI Key Laboratory of Science and Technology on Wear and Protection of Materials Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

Recyclability of thermosetting polymers and their composites is a challenge for alleviating environmental pollution and resource *** this study,solvent-recyclable thermosetting polyimide(PI)and its composite were successfully *** tensile strength,elongation at break,and Young’s modulus of PI are 108.70±7.29 MPa,19.35%±3.89%,and 2336.42±128.00 MPa,*** addition of reduced graphene oxide(RGO)not only enhances the mechanical properties of PI but also endows it with excellent tribological *** PI illustrates a high recycling efficiency of 94.15%,but the recycled composite exhibits inferior mechanical *** recycling and utilization of PI and its composite are realized through imine bonds(-C=N),which provides new guidance for solving the problem of environmental pollution and resource waste and is potential application in the field of sustainable tribology.

关键词： thermosetting polyimide(PI) recyclability dynamic covalent bonds friction and wear polymer composites

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Sandwiched dual seed sources master oscillator power amplifier quantum cascade lasers

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Optics Express 2025年第1期33卷 1585-1593页

作者： Lu, Xiyu Tang, Jing Niu, Shan Cheng, Fengmin Zhuo, Ning Zhang, Jinchuan Zhai, Shenqiang Wang, Lijun Liu, Shuman Liu, Fengqi Liu, Junqi Laboratory of Solid-State Optoelectronics Information Technology Institute of Semiconductors Chinese Academy of Sciences Beijing100083 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China

To facilitate the development of compact multi-wavelengths lasers, we reported the experimental demonstration of dual seed sources master oscillator power amplifier (MOPA) QCLs. The devices were based on a sandwich configuration consisting of dual seed sources and a central power amplifier. Emission spectrum of devices was modulated by switching seed sources. By utilizing this design, two room temperature continuous-wave output power of 46 mW and 30 mW were obtained at modes 7.35 µm and 7.38 µm, respectively. The problem of power difference at the dual wavelengths have been improved. The two target modes were fine-tuning through current with tuning coefficients -0.0131 cm−1mA−1 and -0.0122 cm−1mA−1, respectively. The reported compact quantum cascade lasers with dual seed sources and fine-tuning characteristics are significant for developing miniaturized and on-chip sensing systems with multi-gas accurate detection. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

关键词： Quantum cascade lasers

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Oil-soluble polymer brushes-functionalized nanoMOFs for highly efficient friction and wear reduction

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Friction 2024年第7期12卷 1499-1511页

作者： Jianxi LIU Yong QIAN Dongsheng LI Wei WU Mengchen ZHANG Jie YAN Bin LI Feng ZHOU State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'an 710072China Shaanxi Engineering Research Center of Special Sealing Technology Xi'an Aerospace Propulsion InstituteXi'an 710100China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

Nanomaterials as lubricating oil additives have attracted significant attention because of their designable composition and structure,suitable mechanical property,and tunable surface ***,the poor compatibility between nanomaterials and base oil limits their further *** this work,we demonstrated oil-soluble poly(lauryl methacrylate)(PLMA)brushes-grafted metal-organic frameworks nanoparticles(nanoMOFs)as lubricating oil additives that can achieve efficient friction reduction and anti-wear *** were synthesized by free-radical polymerization,which was coordinatively grafted onto the surface of the UiO-67 ***,PLMA brushes were grown on the macroinitiator-modified UiO-67 by surface-initiated atom transfer radical polymerization,which greatly improved the lipophilic property of the UiO-67 nanoparticles and significantly enhanced the colloidal stability and long-term dispersity in both non-polar solvent and base *** adding UiO-67@PLMA nanoparticles into the 500 SN base oil,coefficient of friction and wear volume reductions of 45.3%and 75.5%were achieved due to their excellent mechanical properties and oil ***,the load-carrying capacity of 500 SN was greatly increased from 100 to 500 N by the UiO-67@PLMA additives,and their excellent tribological performance was demonstrated even at a high friction frequency of 65 Hz and high temperature of 120℃.Our work highlights oil-soluble polymer brushes-functionalized nanoMOFs for highly efficient lubricating additives.

关键词： MOFs polymer brushes surface modification tribological properties friction reduction anti-wear

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Recent advances in molecular and nanoparticle probes for fluorescent bioanalysis

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Nano Research 2024年第7期17卷 6443-6474页

作者： Haowen Luo Lejie Tian Yaoming Zhang Yang Wu Bin Li Jianxi Liu State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering Shandong Laboratory of Advanced Materials and Green ManufacturingYantai 264006China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou 730000China

With the increasing emphasis on ecological safety and physical health,the detection and treatment of harmful substances and diseases are becoming more and more ***,efficiently monitoring these biological behaviors with high accuracy and sensitivity in real-time has shown prominent research *** use of fluorescent probes to analyze organisms has gained momentum in recent years,especially in the field of organ imaging and assisted cancer therapy,where fluorescent bioanalysis demonstrates significant *** this review,we explored the latest advancements in fluorescent molecular probes(e.g.,small-molecule,macro-molecule,supramolecule)and fluorescent nanoparticle probes(e.g.,quantum dots or nanoclusters,metal-organic frameworks,polymers,complexes)used as bioanalytical tools in various assays over the last three *** also delved into their detective mechanisms,specific application areas,and characterization tools for responsive *** review aims to showcase the most recent and comprehensive research progress in fluorescent bioanalysis based on molecular and nanoparticle probes,offering guidance for future developments in the design and fabrication of fluorescent probes and their potential applications.

关键词： fluorescent biosensing bioimaging disease diagnosis tumor detection and treatment

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Temperature-Dependent Anisotropy and Two-Band Superconductivity Revealed by Lower Critical Field in Organic Superconductorκ-(BEDT-TTF)_(2)Cu[N(CN)_(2)]Br

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Chinese Physics Letters 2023年第6期40卷 56-62页

作者：睦惠景司进杨琴珪相英杨海朋闻海虎 National Laboratory of Solid State Microstructures and Department of Physics Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China College of Materials Science and Engineering Shenzhen Key Laboratory of Polymer Science and TechnologyShenzhen UniversityShenzhen 518060China

Resistivity and magnetization have been measured at different temperatures and magnetic fields in organic superconductorsκ-(BEDT-TTF)_(2)Cu[N(CN)_(2)]*** lower critical field and upper critical field are determined,which allow to depict a complete phase *** the comparison between the upper critical fields with magnetic field perpendicular and parallel to the conducting ac-planes,and the scaling of the in-plane resistivity with field along different directions,we find that the anisotropyΓis strongly dependent on *** is realized thatΓis quite large(above 20)near Tc,which satisfies the 2D model,but approaches a small value in the low-temperature *** 2D-Tinkham model can also be used to fit the data at high *** is explained as a crossover from the orbital depairing mechanism in high-temperature and low-field region to the paramagnetic depairing mechanism in the high-field and low-temperature *** temperature dependence of lower critical field,Hc1(T),shows a concave shape in wide temperature *** is found that neither a single d-wave nor a single s-wave gap can fit the Hc1(T),however a two-gap model containing an s-wave and a d-wave can fit the data rather well,suggesting two-band superconductivity and an unconventional pairing mechanism in this organic superconductor.

关键词： temperature satis directions

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