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Interfacial engineering of the layered oxide cathode materials for sodium-ion battery

Nano research 2024年第3期17卷 1441-1464页

作者： Quanqing Zhao Ruru Wang Ming Gao Faheem KButt Jianfeng Jia Haishun Wu Youqi Zhu Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education School of Chemistry and Materials ScienceShanxi Normal UniversityTaiyuan 030032China Metals and Chemistry Research Institute China Academy of Railway Sciences Corporation LimitedBeijing 100081China Department of Physics Division of Science and TechnologyUniversity of EducationLahore 54770Pakistan Research Center of Materials Science Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green ApplicationsBeijing Institute of TechnologyBeijing 100081China

The layered metal oxides are reviewed as the hopeful cathode materials for high-performance sodium-ion batteries(SIBs)due to their large theoretical capacity,favorable two-dimensional(2D)ion diffusion channel,and simple ***,their cycling stability,rate capability,and thermal stability are still significantly concerned and highlighted before further practical *** chemical,mechanical and electrochemical stability of the cathode–electrolyte interfaces upon cycling is of great ***,the unique structural and electrochemical properties of the layered oxide cathode materials for SIB are *** mechanism of bulk/surface degradation induced by oxygen evolution,phase transition,microcrack,and electrolyte decomposition is thoroughly ***,the interfacial engineering to construct stable interface through various effective methods is fully *** future outlook and challenges for interfacial engineering in this filed are also *** review should shed light on the rational design and construct of robust interface for applications of superior layered oxide cathodes in SIB and may suggest future research directions.

关键词： interfacial engineering sodium-ion battery layered oxide electrolyte interface

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Effect of electrochemical hydrogen charging on the microstructure and mechanical behavior of a duplex structured Mg-8wt.%Li alloy

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Journal of Magnesium and Alloys 2025年第2期13卷 668-680页

作者： Shuo Wang Daokui Xu Baojie Wang Dongliang Wang Zhiqiang Zhang Li Liu Jie Chen Key Lab of Electromagnetic Processing of Materials Ministry of EducationNortheastern UniversityShenyang110819China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang110016China Engineering Research Center of Advanced Materials Preparing Technology Ministry of EducationNortheastern UniversityShenyang110819China Binzhou Institute of Technology BinzhouShandong Province256606China Shandong Key Laboratory of Advanced Aluminium Materials and Technology BinzhouShandong Province256606China School of Environmental and Chemical Engineering Shenyang Ligong UniversityShenyang110159China Spallation Neutron Source Science Center Dongguan523803China

In this work,through performing microstructural characterization,tensile testing and failure analysis,the influence of electrochemical hydrogen charging on the microstructure and mechanical behavior of an as-cast Mg-8wt.%Li alloy was *** revealed that after being hydrogen charged at 50 mA/cm2 for respectively 3 h,6 h and 18 h in 0.1 M NaCl solution,obvious HID occurred and the damage degree was gradually increased with the hydrogen charging *** the sample being hydrogen charged for 3 h,micro pores with the diameter ranging from 10~30µm were formed and preferentially present inα-Mg ***,micro cracks with the length ranging from 10~50µm mainly initiated inα-Mg phase,atα-Mg/β-Li interfaces and the peripheries of *** the increase of hydrogen charging time,the numbers of pores and cracks were obviously *** results revealed that the hydrogen charging can simultaneously decrease the tensile strength and ductility of the *** with the uncharged sample,the tensile yield strength,ultimate tensile strength and the elongation ratio to failure were respectively reduced by 5.7%,7.3%,31.7%for the 3h-charged sample and 24.6%,24.8%,67.0%for the 18h-charged *** analysis indicated that hydrogen charging can induce the brittle cracking of the alloy and the size of brittle cracking region being composed of quasi-cleavage facets and interfacial cracks on the fracture surfaces was increased with the hydrogen charging time.

关键词： Magnesium-lithium alloy Microstructure Hydrogen-induced damage Hydrogen embrittlement Mechanical behavior

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Nonreciprocal Photon Blockade Based on Zeeman Splittings Induced by a Fictitious Magnetic Field

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Chinese Physics Letters 2024年第7期41卷 36-46页

作者：苏欣金飚兵唐江山夏可宇 College of Engineering and Applied Sciences National Laboratory of Solid State Microstructuresand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210023China Research Institute of Superconductor Electronics(RISE)&Key Laboratory of Optoelectronic Devices and Systems with Extreme Performances of MOE School of Electronic Science and EngineeringNanjing UniversityNanjing 210023China

Quantum nonreciprocity, such as nonreciprocal photon blockade, has attracted a great deal of attention due to its unique applications in quantum information processing. Its implementation primarily relies on rotating nonlinear systems, based on the Sagnac effect. Here, we propose an all-optical approach to achieve nonreciprocal photon blockade in an on-chip microring resonator coupled to a V-type Rb atom, which arises from the Zeeman splittings of the atomic hyperfine sublevels induced by the fictitious magnetic field of a circularly polarized control laser. The system manifests single-photon blockade or multi-photon tunneling when driven from opposite directions. This nonreciprocity results from the directional detunings between the countercirculating probe fields and the V-type atom, which does not require the mechanical rotation and facilitates integration. Our work opens up a new route to achieve on-chip integrable quantum nonreciprocity, enabling applications in chiral quantum technologies.

关键词： effect reciprocal quantum

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Deprotonation of retinal Schiff base and structural dynamics in the early photoreaction of primate blue cone visual pigment

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Biophysical Journal 2025年第12期124卷 2070-2081页

作者： Mizuno, Yosuke Katayama, Kota Imai, Hiroo Kandori, Hideki Department of Life Science and Applied Chemistry Nagoya Institute of Technology Nagoya Showa-ku Japan OptoBioTechnology Research Center Nagoya Institute of Technology Nagoya Showa-ku Japan Center for the Evolutionary Origins of Human Behavior Kyoto University Inuyama Japan

Animal rhodopsin is a photoreceptive protein crucial for vision, with activation triggered by the cis-trans isomerization of a retinal chromophore upon light absorption. This activation involves a series of thermal intermediates, ultimately leading to G protein-mediated signal transduction. The retinal chromophore is covalently bound to the protein through a protonated Schiff base, and its deprotonation during the formation of the active intermediate is believed to induce structural changes in α-helices that facilitate G-protein interactions. Using low-temperature UV-visible absorption and Fourier transform infrared spectroscopy, we investigated the early photoreaction of the primate blue cone visual pigment (MB). Our results demonstrate that Schiff base deprotonation in the early photoreaction is coupled with local perturbations in α-helices, promoting the formation of the Lumi intermediate. Using site-directed mutagenesis, we identified the proton acceptor involved in Schiff base deprotonation and mapped the regions of α-helical structural changes during the formation of the Lumi intermediate. We discovered that the proton released from the Schiff base is transferred to the counterion Glu113. Systematic mutagenesis revealed that structural perturbations in transmembrane helix 7 bring Glu113 and the lysine residue forming the Schiff base into proximity, facilitating efficient proton transfer during the early photoreaction. Additionally, the Lumi intermediate formed at low temperatures was found to revert to the original state through thermally driven reverse proton transfer, coupled with retinal reisomerization. From an evolutionary perspective, MB is part of a group of UV-sensitive cone visual pigments characterized by a deprotonated retinal Schiff base in the ground state. The observed propensity for MB to undergo Schiff base deprotonation is consistent with this evolutionary trait. © 2025 The Author(s)

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Metal-free multicomponent polymerization of activated diyne,electrophilic styrene and isocyanide towards highly substituted and functional poly(cyclopentadiene)

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science China Chemistry 2023年第3期66卷 863-869页

作者： Xinyue Liu Xueqin Yang Xin Li Jianwei Sun Benzhao He Jacky W.Y.Lam Ben Zhong Tang Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional MaterialsThe Hong Kong University of Science and TechnologyHong Kong 999077China Center for Advanced Materials Research Beijing Normal University at ZhuhaiZhuhai 519085China School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhen 518172China Center for Aggregation-Induced Emission South China University of TechnologyGuangzhou 510640China

The development of a facile and efficient polymerization to prepare cyclopentadiene-containing polymers is of vital importance and highly desired. In this work, a metal-free multicomponent polymerization of activated diyne, electrophilic styrene and isocyanide for the preparation of highly substituted poly(cyclopentadiene) was established. Soluble and thermally stable polymers with high molecular weights are obtained in high yields under mild conditions. By introducing the tetraphenylethene or triphenylamine moiety into polymer backbones, the resultant polymers show unique aggregation-induced emission(AIE)characteristics. Interestingly, AIE polymers can also be generated in situ from non-AIE monomers. Moreover, the prepared polymers can generate photopatterns to function as photoresists and can also serve as visualizing agents to selectively stain the lipid droplets in live cells. This efficient polymerization will open up enormous opportunities for preparing functional cyclopentadiene-containing polymers applicable in diverse areas.

关键词： multicomponent polymerization activated alkynes highly substituted poly(cyclopentadiene)

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High-resolution characterization of the fretting corrosion of Alloy 690 in the simulated secondary water of pressurized water reactor

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Journal of Materials science & technology 2023年第20期151卷 30-40页

作者： You Wang Zhangjian Zhou Hui Wang Jiang Ju Zhao Shen Xiaoqin Zeng School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Interdisciplinary Materials Research Center Institute for Advanced StudyChengdu UniversityChengdu 610041China School of Materials Science and Engineering Shanghai Jiao Tong UniversityNo.800 Dongchuan RoadShanghai 200240China

The worn scars on Alloy 690 after the fretting corrosion testing in simulated pressurized water reactor(PWR)secondary water have been comprehensively analyzed by scanning transmission electron microscopy(STEM)and transmission Kikuchi diffraction(TKD).The high-quality characterization results experimentally show that the fretting wear accelerates the corrosion of Alloy 690 in two *** first one is to break the integrity of the oxide scale by introducing cavities at the oxide grain *** second one is to alter the microstructure of the underneath matrix,forming a nano-grained matrix *** increased grain boundary density in this layer can accelerate the consumption of Cr in the near-surface *** loss of oxide scale integrity and the accelerated Cr consumption are believed to contribute to the deteriorated corrosion resistance of Alloy 690 during the fretting corrosion process.

关键词： Alloy 690 Corrosion Fretting wear Transmission electron microscopy Transmission Kikuchi Diffraction

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Multifunctional Structure-Modified Quaternary Compounds Co9Se8-CuSe2-WSe2 Mixed with MWCNT as a Counter Electrode Material for Dye-Sensitized Solar Cells

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ACS applied Materials and Interfaces 2024年第3期16卷 3476-3488页

作者： Liu, Rih-Jia Chang, Ling-Yu Lin, Fang-Sian Lee, Yu-Hsin Yeh, Min-Hsin Ho, Kuo-Chuan Department of Chemical Engineering National Taiwan University Taipei10617 Taiwan Institute of Polymer Science and Engineering National Taiwan University Taipei10617 Taiwan Department of Chemical Engineering National Taiwan University of Science and Technology Taipei10607 Taiwan Advanced Research Center for Green Materials Science and Technology National Taiwan University Taipei10617 Taiwan

In this study, a trimetallic selenide material with a hollow spherical structure (Co9Se8-CuSe2-WSe2) was synthesized through two consecutive solvothermal reactions. The synergistic effect between the quaternary elements, the benefits of the selenization of metals, and the unique morphology led to the prominent electrocatalytic ability of Co9Se8-CuSe2-WSe2 hollow spheres. Co9Se8-CuSe2-WSe2 hollow spheres were then mixed with oxygen plasma-treated multiwalled carbon nanotubes (MWCNT) as counter electrode (CE) material for dye-sensitized solar cells (DSSCs), achieving a photoelectric conversion efficiency (η) of 9.23% under one sun condition (AM 1.5G, 100 mW cm-2), surpassing the 8.08% of devices with platinum counter electrodes (PtCEs). For indoor conditions, a T5 light source was applied to the DSSCs with Co9Se8-CuSe2-WSe2 + MWCNT CE, and the efficiency increased to 14.14% under 3600 lx irradiance. Finally, Co9Se8-CuSe2-WSe2 + MWCNT CE demonstrated good stability with 92.23% retention after 1000 cycles of cyclic voltammetry, exceeding the 82.49% of PtCE. Therefore, Co9Se8-CuSe2-WSe2 + MWCNT shows potential as a substitute for platinum as CE material for DSSCs. © 2024 American Chemical Society

关键词： Dye-sensitized solar cells

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Recent Advances in Pure-Organic Host-Guest Room-Temperature Phosphorescence Systems Toward Bioimaging

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Transactions of Tianjin University 2023年第6期29卷 432-443页

作者： Zhiqin Wu Yang Li Xiang Ma Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China

Organic room-temperature phosphorescence(RTP)materials have garnered considerable attention in the fields of biosensing,optoelectronic devices,and anticounterfeiting because of their substantial Stokes shifts,tunable emission wavelengths,and prolonged *** materials offer remarkable advantages for biological imaging applications by effectively reducing environmental autofluorescence and enhancing imaging ***,host-guest systems have been employed as efficient approaches to fabricate pure-organic RTP materials for bioimaging,providing benefits such as controllable preparation and flexible ***,an increasing number of corresponding studies are being reported;however,a comprehensive systematic review is still ***,we summarize recent advances in the development of pureorganic RTP materials using host-guest systems with regard to bioimaging,including rigid matrices and *** challenge and potential of RTP for biological imaging are also proposed to promote the biomedical applications of organic RTP materials with excellent optical properties.

关键词： Room-temperature phosphorescence Host-guest system Rigid matrix Biological imaging

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Hot Compression Behavior and Tensile Property of a Novel Ni-Co-Based Superalloy Prepared by Electron Beam Smelting Layered Solidification technology

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Acta Metallurgica Sinica(English Letters) 2024年第2期37卷 283-292页

作者： Yong-Chao Gai Rui Zhang Chuan-Yong Cui Zi-Jian Zhou Yi Tan Yi-Zhou Zhou Xiao-Feng Sun Key Laboratory of Materials Modification by Laser Ionand Electron Beams(Ministry of Education)School of Materials Science and EngineeringDalian University of TechnologyDalian116024China Shi-Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang110016China

The hot compression behavior and tensile strength after compression of a new Ni-Co-based superalloy produced using electron beam smelting layered(EBSL)solidification technology were *** compression tests were performed at temperatures of 1120℃and 1150℃,with strain rates of 1 s^(-1) and 0.01 s^(-1),reaching a true strain of *** strength was evaluated at room *** results revealed that this EBSL technology accelerates dynamic recrystallization(DRX),without compromising the strength of alloy.A significant correlation between the volume fraction of DRX and the strain rate was observed,with higher fractions at lower strain rates,leading to higher tensile ***,at the same strain rate,the specimens compressed at 1120℃exhibited higher tensile strength due to undissolvedγ′*** solution and aging heat treatment,the alloy maintained high tensile *** results suggested that the EBSL Ni-Co-based superalloy offers excellent prospects for practical applications.

关键词： Ni-Co-based superalloy Hot deformation Electron beam smelting Tensile strength

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Pressure-Induced Topochemical Polymerization toward advanced Energetic Materials

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CCS Chemistry 2023年第8期5卷 1815-1826页

作者： Guangyu Qi Siwei Song Zhiying Deng Dajian Huang Fang Chen Bingmin Yan Huiyang Gou Qinghua Zhang Yi Wang Institute of Chemical Materials China Academy of Engineering Physics(CAEP)Mianyang 621999 Center for High Pressure Science and Technology Advanced Research(HPSTAR) Beijing 100094

Pressure produces closely packed,high-density materials,thereby providing a promising strategy to obtain high-energy-density ***,new phases or structures of energetic materials at high pressure are often not quenchable under ambient *** this work,high-pressure topochemical methodology is first introduced for the preparation of stable energetic materials under ambient conditions.A pressure-induced polymerizable energetic material named PIP-1 is designed and *** experimental measurements demonstrate that the polymerization of PIP-1 is caused by the breakage of C≡C bonds and the generation of C=C *** accord with the experimental results,density functional theory calculations further revealed that the monomer PIP-1 is polymerized to generate 1D PIP-1 tape,and the density of polymerized PIP-1 is increased by 4.9%upon *** successful realization of high-energy-density structure using high pressure showcases a new design strategy for advanced polymerizable energetic materials.

关键词： high pressure energetic material topochemistry pressure-induced polymerization

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