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SSRN 2025年

作者： Pan, Xuexue Supiyeva, Zhazira Wang, Zhuanpei Abbas, Qamar Henan University of Technology China Zhongshan Advanced New Functional Materials Engineering Technology Research Center Laboratory of Advanced Functional Materials Zhongshan Polytechnic Zhongshan528400 China School of Energy Science and Technology Henan University Kaifeng475004 China Institute of Combustion Problems 71 al-Farabi Ave. Almaty050040 Kazakhstan Institute for Chemistry and Technology of Materials Graz University of Technology Stremayrgasse 9 Graz8010 Austria Institute of Chemistry and Technical Electrochemistry Faculty of Chemical Technology Poznan University of Technology Berdychowo 4 Poznan60-965 Poland

Faced with the growing demand for efficient and sustainable energy storage, zinc ion capacitors (ZICs) are gradually emerging due to their low cost, high safety, and environmental compatibility. This article provides a comprehensive overview of the theoretical framework, structural innovation, scientific challenges, and optimization strategies of ZICs. Firstly, the concept of ZICs described, then their classification and charge storage mechanism is presented, delving into the principles and performance indicators of charge matching, such as energy and power density, cycle stability. Further, characteristics of hybrid ZICs that integrate the advantages of batteries and capacitors are highlighted. The material section details the electrode category, including carbon based, pseudo capacitor and battery type materials, supplemented with consideration of separator, multi electrolyte system (water-based, organic, gel, solid) and redox enhanced electrolytes. In the scientific challenge section, we discuss core issues such as low specific capacity, unclear energy storage mechanism, low mass load, mismatched carrier pore size, inhibition of zinc dendrite growth, electrolyte optimization, and research and development of positive electrode materials. This part is also supplemented with discussion on interface stability, structural and surface chemical modulation, cycle life decay mechanism, and safety considerations. Interface engineering and optimization strategies focus on enhancing the stability of electrode/electrolyte interfaces, suppressing zinc dendrite paths, improving the performance of positive electrode pseudo capacitors, and constructing SEI films. Structural design and performance improvement focus on nanostructures (one-dimensional, two-dimensional, and three-dimensional), optimizing porous materials, designing flexible micro ZICs, and innovating functionalized separators and current collectors. Finally, the future research directions have been summarized, with a

关键词： Separators

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Absence of superconductivity and density-wave transition in ambient-pressure tetragonal La4Ni3O10

arXiv

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arXiv 2025年

作者： Shi, Mengzhu Li, Yikang Wang, Yuxing Peng, Di Yang, Shaohua Li, Houpu Fan, Kaibao Jiang, Kun He, Junfeng Zeng, Qiaoshi Song, Dongsheng Ge, Binghui Xiang, Ziji Wang, Zhenyu Ying, Jianjun Wu, Tao Chen, Xianhui CAS Key Laboratory of Strongly-coupled Quantum Matter Physics Department of Physics University of Science and Technology of China Anhui Hefei230026 China Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Anhui Hefei230026 China Institute of Physics Chinese Academy of Sciences Beijing National Laboratory for Condensed Matter Physics Beijing100190 China Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China Hefei National Laboratory University of Science and Technology of China Hefei230088 China Shanghai China Center for High Pressure Science and Technology Advanced Research Shanghai China Information Materials and Intelligent Sensing Laboratory of Anhui Province Anhui Key Laboratory of Magnetic Functional Materials and Devices Institutes of Physical Science and Information Technology Anhui University Hefei China

The recent discovery of superconductivity in La3Ni2O7 and La4Ni3O10 under high pressure stimulates intensive research interests. These nickelates crystallize in an orthogonal/monoclinic structure with tilted NiO6 octahedra at ambient pressure and enter a density-wave-like phase at low temperatures. The application of pressure suppresses the octahedral tilting and triggers a transition to tetragonal structure (I4/mmm), which is believed to be a key prerequisite for the emergence of superconducting state. Here, by developing a high oxidative environment growth technology, we report the first tetragonal nickelates La4Ni3O10 microcrystals without octahedral tilting at ambient pressure. In tetragonal La4Ni3O10, transport measurements find that both density-wave and superconducting transitions are absent up to 160 GPa, indicating a robust tetragonal metallic ground state. Density functional theory calculations reveal that the band structure of ambient-pressure tetragonal La4Ni3O10 involves more dz2 orbital contribution to the Fermi surface, compared to the monoclinic phase or the high-pressure superconducting tetragonal phase. The concurrent absence of density-wave state and high-pressure superconductivity in our ambient-pressure tetragonal crystals of La4Ni3O10 suggests an underlying correlation between these two orders. It suggests that the tetragonal structure is not necessary, while the density-wave state is crucial for the superconductivity in nickelates. Our findings impose important constraints on the mechanism of pressure-induced superconductivity in nickelates and sheds new light on exploring ambient pressure high-temperature Ni-based superconductors. © 2025, CC BY.

关键词： Nickel oxide

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All-fiber mid-infrared supercontinuum generation with high coherence in chalcogenide fiber pumped by 2.8 µm Raman femtosecond solitons

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Infrared Physics and technology 2025年 148卷

作者： Zhang, Chunyu Song, Jian Zhang, Zhilin Xia, Kai Wei, Zibo Lv, Meng Mei, Chao Yang, PeiLong Peng, Xuefeng Xu, Peipeng Dai, Shixun Laboratory of Infrared Materials and Devices The Research Institute of Advanced Technologies Ningbo University Ningbo315211 China Department of Physics School of Physical Science and Technology Ningbo University Ningbo315211 China College of Science & Technology Ningbo University Ningbo315211 China Technology Innovation Center of Infrared Remote Sensing Metrology Technology State Administration for Market Regulation Beijing100029 China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai200050 China

We present an all-fiber mid-infrared supercontinuum (MIR-SC) generation in As2S3 chalcogenide glass fiber, powered by a 2.8 µm femtosecond laser generated through the soliton self-frequency shift (SSFS) effect in fluoride fiber. To ensure high-quality femtosecond laser pulse production, we thoroughly investigated the SSFS effect in three types of fibers using 2.0 µm femtosecond laser as pump source. Ultimately, we obtained 2.8 µm soliton pulses with an average power of 241 mW, a conversion efficiency of 42.5 % and a peak power reaching 36.5 kW in an 8 m-long ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN) fiber. By injecting the 2.8 µm pulses into a segment of As2S3 fiber, where this wavelength situated rightly in the normal dispersion region of this fiber, a SC spanning from 1.83 to 4.0 µm was generated with excellent spectral flatness. Furthermore, we simulated the spectral evolution of the pulses in the As2S3 fiber, the simulation results showing strong agreement with experimental observations. The spectral coherence factor |g12(1)| was estimated close to 1 across the entire spectral range, indicating a good coherence of this SC. © 2025 Elsevier B.V.

关键词： Femtosecond lasers

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Zeeman splitting and quantum-limit magnetoresistance anomaly in the topological insulator β-Ag2Se

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Physical Review B 2025年第8期111卷 085135-085135页

作者： Yue Zhao Lei Shi Kuan Li Huakun Zuo Gangjian Jin Zhifeng Xue Wei Zhou Dingyong Zhong Donghui Guo Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices School of Physics Sun Yat-sen University Guangzhou 510275 China School of Materials Science and Engineering State Key Laboratory of Optoelectronic Materials and Technologies Key Lab of Polymer Composite & Functional Materials Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices Sun Yat-sen University Guangzhou 510275 China Wuhan National High Magnetic Field Center and School of Physics Huazhong University of Science and Technology Wuhan 430074 China State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat-sen University Guangzhou 510275 China

Topological insulators (TIs) represent a unique class of materials with significant potential for both fundamental research and future applications. The characteristic band inversion in TIs gives rise to unique properties in their bulk states. In this paper, we report exotic features of nontrivial bulk states in a TI β-Ag2Se. The investigated crystals exhibit resistivity-temperature behavior characteristic of doped semiconductors, with a band gap that aligns well with theoretical electronic structure calculations. Systematic magnetotransport measurements reveal a three-dimensional (3D) anisotropic Fermi pocket resulting from electron doping, indicating that bulk states predominantly contribute to the observed properties. Under parallel magnetic and electric fields, Zeeman splitting is observed, giving a Landé g factor of ∼10. Furthermore, we detect anomalous longitudinal magnetoresistance (MR) dips in the quantum limit when only the lowest Landau level is occupied, which are closely related to the field-induced topological phase transition and reminiscent of the forbidden backscattering in TIs due to the spinor orthogonality. These intriguing transport phenomena combined with theoretical calculations elucidate the topological nature of β-Ag2Se as a TI and offer a promising foundation for developing TI-based devices.

关键词： Topological insulators

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Tunable second harmonic in altermagnetic Josephson junctions

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Physical Review B 2025年第16期111卷 165406-165406页

作者： Hai-Peng Sun Song-Bo Zhang Chang-An Li Björn Trauzettel Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology Center for Intense Laser Application Technology and College of Engineering Physics Shenzhen Technology University Shenzhen 518118 China Institute for Theoretical Physics and Astrophysics University of Würzburg 97074 Würzburg Germany Würzburg-Dresden Cluster of Excellence ct.qmat 97074 Würzburg Germany Hefei National Laboratory Hefei Anhui 230088 China International Center for Quantum Design of Functional Materials (ICQD) University of Science and Technology of China Hefei Anhui 230026 China

We study the influence of external electric and Zeeman fields on the Josephson effect in a planar superconductor/altermagnet/superconductor junction. Remarkably, we find that the current-phase relation (CPR) can be forward or backward skewed due to a pronounced second harmonic term. It decisively depends on the altermagnetic field strength. This second harmonic can be measured directly using double SQUID devices. The CPR skewness can be effectively manipulated by electric gating. Moreover, we identify two additional impacts of external electric and magnetic fields on the Josephson current: (i) Fields can induce 0-π transitions. (ii) Fields can substantially enhance the critical current. This enhancement is surprising since supercurrents are typically suppressed by magnetic fields.

关键词： SQUIDs

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一步秒级制备超薄多孔Janus膜及其在防水透气电子皮肤的应用（英文）

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science Bulletin 2025年第5期 712-721页

作者：倪宇峰李兵储成臻王少凡贾宇杰曹诗春 Rasoul Esmaeely Neisiany 何创龙陈硕游正伟 State Key Laboratory of Advanced Fiber Materials Institute of Functional Materials College of Materials Science and Engineering Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society) Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine Shanghai Key Laboratory of Lightweight Composite Donghua University College of Biological Science and Medical Engineering Donghua University Department of Materials and Polymer Engineering Faculty of Engineering Hakim Sabzevari University Biotechnology Centre Silesian University of Technology

It remains a challenge for a simple and scalable method to fabricate ultrathin porous Janus membranes for stretchable on-skin ***,we propose a one-step droplet spreading phase separation strategy to prepare an ultrathin and easily collected Janus thermoplastic polyurethane （TPU） membrane within *** metal-ion solvation structure mitigated migration kinetics to delay TPU solution demixing,promoting the further penetration of the coagulating ***,the developed membranes,with an average preparation rate of 25.2 cm2s-1,had a thickness of 5μm,and the water vapor transmission rate was determined to be 663 *** small pore layer having an average pore size of 1.7μm effectively blocked external liquid *** porous Janus TPU membrane coated by liquid metal served as a building block to develop a new generation of monolithic stretchable electronics with simultaneous high permeability and waterproofness.

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Isolated asymmetric CoN4 sites on nitrogen-doped hollow carbons as electrocatalysts for hydrogen evolution reactions in dual pH electrolytes

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Journal of Colloid and Interface science 2025年 694卷 137708页

作者： Xue, Yihang Zeng, Dahai Meng, Yuying Du, Bing Xie, Haifang Ma, Lei Wang, Yufeng Gao, Qingsheng Institute of Advanced Wear & Corrosion Resistant and Functional Materials College of Chemistry and Materials Science Jinan University Guangzhou510632 China College of Chemistry and Materials Science Jinan University Guangzhou510632 China College of Materials Science and Engineering Shenzhen University Shenzhen518060 China Guangxi Key Laboratory of Information Materials Guilin University of Electronic Technology Guilin541004 China

Atomic transition metal-nitrogen (M-Nx) active sites dispersed on carbon matrix have emerged as highly promising electrocatalysts for energy conversion systems, owing to their maximized metal center utilization and excellent conductivity of the carbon substrate. However, conventional symmetric M-N4 configurations often exhibit limited hydrogen evolution reaction (HER) activity in alkaline due to the inferior water dissociation capacity. In this work, isolated Co single atoms anchored on N-doped hollow carbon substrates (CoSA/NHCs) are successfully fabricated by the pyrolysis of Co2+-containing polypyrrole (Co-PPY) precursor, and the subsequent removal of embedded Co particles. Thanks to the high density of atomically distributed asymmetric Co-N4 moieties, which facilitate efficient water activation and optimal adsorption of the active hydrogen (H*), the synthesized CoSA/NHCs electrocatalysts show remarkable HER activity and stability in alkaline electrolyte. Besides, they can effectively electrolyze HER in acidic medium, undergoing the Volmer-Heyrovsky pathway. Remarkably, CoSA/NHC-800, pyrolyzed at 800 °C, requires small overpotentials of 230 and 228 mV to achieve the current density of −10 mA cm−2 in 1.0 M KOH and 0.5 M H2SO4 solutions, respectively. Moreover, it displays small Tafel slopes, high Faradic efficiencies (∼100 %) and superior long-term stability. This study paves a strategic approach for designing high-performance single-atom electrocatalysts through asymmetric structural engineering. © 2025 Elsevier Inc.

关键词： Potassium hydroxide

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Multifunctional Au–Ag NCs for luminescence and colorimetric double signal sensing of H2S and catalytic reduction of nitrophenol

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Talanta 2025年 282卷 127022页

作者： Su, Yan Gao, Pengfei Zhang, Guomei Zhou, Ying Shi, Lihong Wu, Jianlin Liang, Wenting Shuang, Shaomin Zhang, Yan School of Chemistry and Chemical Engineering Shanxi University Taiyuan China State Key Laboratory of Quality Research in Chinese Medicine Macau University of Science and Technology Macau SAR China Taipa China Institute of Environmental Science Shanxi University Taiyuan China Institute of Advanced Functional Materials and Devices Shanxi University Taiyuan China Taiyuan China

In this study, the N-Acetyl-L-Cysteine (NAC)-capped gold and silver bimetallic nanoclusters (NAC@Au–Ag NCs) was synthesized by reflux method. Due to the silver effect, the NAC@Au–Ag NCs exhibited strong photoluminescence at far-red/near-infrared regions and better catalytic performance than Au or Ag NCs. Upon addition of H2S, the Au–Ag NCs exhibited obvious fluorescence quench and color changes through the generation of metal sulfides and a static quenching process. The Au–Ag NCs displayed a wide linear luminescence response for H2S (18.5–217 μmol/L) with a detection limit of 0.269 μmol/L. Moreover, the visible color of Au–Ag NCs changed from white to brown-yellow along with increased H2S, the corresponding RGB values also displayed good linearity with the concentration of H2S (90.1–678 μmol/L). Notably, the fabrication of test strips provided a convenient and intuitive tool to screen the freshness of eggs by the color change of test strips. Au–Ag NCs could be used for living HeLa cells bioimaging and recognition of H2S abnormalities. Furthermore, it can be used as a catalyst to reduction of nitrophenols (NPhs), specific included 2NP, 3NP and 4NP. The reaction was regarded as a pseudo-first-order kinetic reaction due to the presence of excess NaBH4. At 298K, the catalytic rate constants(k) of 2NP, 3NP and 4NP were 0.1754 min−1, 0.1734 min−1 and 0.2782 min−1, respectively. The NAC@Au–Ag NCs catalyst still showed good catalytic activity and reusability after five cycles. Therefore, this study developed a H2S sensor for food samples and biological systems. And this nanocatalyst had great application potential for removed the nitrophenol pollutants in water. © 2024 Elsevier B.V.

关键词： Rate constants

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Constructing main/side chain dual-cation poly(mequitazine-terphenyl piperidinium) anion exchange membranes for high-performance fuel cells

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Materials Reports: Energy 2025年第2期5卷

作者： Sun, Shiyao Zhao, Jialin Lei, Yijia Wu, Jingyi Gao, Jian Li, Na Yang, Jiayao Lu, Jiahao Yin, Liying Wang, Zhe School of Chemistry and Life Sciences Changchun University of Technology Changchun130012 China School of Chemical Engineering Changchun University of Technology Changchun130012 China Advanced Institute of Materials Science Changchun University of Technology Changchun130012 China Key Laboratory of Advanced Functional Polymer Membrane Materials of Jilin Province Changchun130012 China

Anion exchange membranes (AEMs) combining high hydroxide conductivity and alkali-resistant stability have become a major challenge for the long-term development of anion exchange membrane fuel cells (AEMFCs). Here, we designed a series of poly(mequitazine-terphenyl piperidinium) (QPMTP-X) AEMs with dual-functionalized quaternary ammonium cations by introducing a certain proportion of large steric hindrance mequitazine (MEQ) molecular building unit into the poly(aryl piperidinium) backbone. QPMTP-X retains the excellent mechanical properties of the poly(aryl piperidinium), while also combining the alkaline stability and high ionic conductivity exhibited by MEQ with flexible quinuclidinium side chains, achieving an overall improvement of membrane performance. Notably, QPMTP-30 exhibits an ultra-high conductivity of up to 206.83 mS cm−1 and excellent alkaline stability (over 95% conductivity is maintained after 1000 h of conditioning in 2 M NaOH at 80 °C). In fuel cell performance test, QPMTP-30 achieves a peak power density (PPD) of 974.5 mW cm−2 and operates stably at 80 °C for more than 60 h (0.1 A cm−2). Incorporating large steric hindrance building blocks and multi-cations into the poly(aryl piperidinium) backbone not only synergizes the development of high-performance AEMs but also opens up new ideas for the structural design of future AEMs. © 2025 The Authors

关键词： Structural dynamics

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Grain boundary segregation induced strong UHTCs at elevated temperatures:A universal mechanism from conventional UHTCs to high entropy UHTCs

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Journal of Materials science & technology 2022年第28期123卷 26-33页

作者： Fu-Zhi Dai Bo Wen Yinjie Sun Yixiao Ren Huimin Xiang Yanchun Zhou Science and Technology on Advanced Functional Composite Laboratory Aerospace Research Institute of Materials&Processing TechnologyBeijing 100076China DP Technology Beijing 100044China

Ultra-high temperature ceramics(UHTCs)exhibit a unique combination of excellent properties,including ultra-high melting point,excellent chemical stability,and good oxidation resistance,which make them promising candidates for aerospace and nuclear ***,the degradation of hightemperature strength is one of the main limitations for their ultra-high temperature ***,searching for mechanisms that can help to develop high-performance UHTCs with good high-temperature mechanical properties is urgently *** achieve this goal,grain boundary segregation of a series of carbides,including conventional,medium entropy,and high entropy transition metal carbides,i.e.,Zr_(0.95)W_(0.05)C,TiZrHfC_(3),ZrHfNbTaC_(4),TiZrHfNbTaC_(5),were studied by atomistic simulations with a fitted Deep Potential(DP),and the effects of segregation on grain boundary strength were *** all the studied carbides,grain boundary segregations are realized,which are dominated by the atomic size *** addition,tensile simulations indicate that grain boundaries(GBs)will usually be strengthened due to *** simulation results reveal that grain boundary segregation may be a universal mechanism in enhancing the high-temperature strength of both conventional UHTCs and medium/high entropy UHTCs,since GBs play a key role in controlling the fracture of UHTCs at elevated temperatures.

关键词： UHTCs High entropy ceramics Grain boundary segregation High-temperature strength Machine learning potential

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