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Journal of Rare Earths 2025年第2期43卷 270-275页

作者： Huanyin Yu Xiaoping Yang Xiaoli Lv Xianfeng Huang College of Chemistry and materials Engineering Wenzhou UniversityZhejiang Key Laboratory of Carbon MaterialsKey Lab of Biohealth Materials and Chemistry of Wenzhou

A 12-metal Zn（Ⅱ）-Nd（Ⅲ） cluster 1（sizes:1.8 nm×2.0 nm×2.0 nm） was synthesized from a long-chain type Schiff base *** displays ratiometric fluorescence response to neopterin（Neo） with high selectivity and sensitivity,which can be expressed by the equation I545nm/I1060nm=A·[Neo]2+B·[Neo]+C.1 is used to quantitatively test Neo concentrations in fetal calf serum（FCS） and urine,and the recovery ranges are 98.57%-103.82% and 99.25%-103.50%,respectively,while the relative standard deviations（RSDs） are 7.89%-9.46% and 1.85%-4.16%,*** limits of detection of 1 to Neo in FCS and urine are 0.034 and 0.021 μmol/L,respectively.

关键词： Neopterin NIR luminescence Rare earths Ratiometric fluorescence detection Zn(II)-Nd(III) nanocluster

Sulfur atom occupying surface oxygen vacancy to boost the charge transfer and stability for aqueous Bi2O3 electrode

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Journal of Energy Chemistry 2025年第2期101卷 751-759页

作者： Guangmin Yang Jianyan Lin Guanwu Li Tian Li Dong Wang Weitao Zheng College of physics Changchun Normal University School of materials Science and Engineering Northwestern Polytechnical University key laboratory of Automobile materials of MOE School of Materials Science and Engineering and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials Jilin University

Oxygen vacancies（Ov） within metal oxide electrodes can enhance mass/charge transfer dynamics in energy storage ***,construction of surface Ovoften leads to instability in electrode structure and irreversible electrochemical reactions,posing a significant *** overcome these challenges,atomic heterostructures are employed to address the structural instability and enhance the mass/charge transfer dynamics associated with phase conversion mechanism in aqueous electrodes,Herein,we introduce an atomic S-Bi2O3heterostructure(sulfur（S） anchoring on the surface Ovof Bi2O3).The integration of S within Bi2O3lattice matrix triggers a charge imbala nce at the heterointerfaces,ultimately resulting in the creation of a built-in electric field（BEF）.Thus,the BEF attracts OH-ions to be adsorbed onto Bi within the regions of high electron cloud overlap in S-Bi2O3,facilitating highly efficient charge ***,the anchored S plays a pivotal role in preserving structural integrity,thus effectively stabilizing the phase conversion reaction of *** a result,the S-Bi2O3electrode achieves72.3 mA h g-1at 10 A g-1as well as high-capacity retention of 81.9% after 1600 *** innovative SBi2O3design presents a groundbreaking approach for fabricating electrodes that exhibit efficient and stable mass and charge transfer ***,it enhances our understanding of the underlying reaction mechanism within energy storage electrodes.

关键词： Anchoring effect Atomic heterostructure Charge/mass transfer Oxygen vavancy Structural integrity

Structuring MoO3-polyoxometalate hybrid superstructures to boost electrocatalytic hydrogen evolution reaction

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Chinese Chemical Letters 2025年第2期36卷 239-243页

作者： Bowen Li Ting Wang Ming Xu Yuqi Wang Zhaoxing Li Mei Liu Wenjing Zhang Ming Feng key laboratory of Functional materials physics and Chemistry of the Ministry of Education Jilin Normal University

Improving the surface atoms utilization efficiency of catalysts is extremely important for large-scale H2production by electrochemical water splitting,but it remains a great ***,we reported two kinds of Mo O3-polyoxometalate hybrid nanobelt superstructures (MoO3-POM HNSs,POM=PW12O40and Si W12O40) using a simple hydrothermal *** superstructure with highly uniform nanoparticles as building blocks can expose more surface atoms and emanate increased specific surface *** incorporated POMs generated abundant oxygen vacancies,improved the electronic mobility,and modulated the surface electronic structure of MoO3,allowing to optimize the H*adsorption/desorption and dehydrogenation kinetics of ***,the as-prepared MoO3-PW12O40HNSs electrodes not only displayed the low overpotentials of 108 mV at 10 mA/cm2current density in 0.5 mol/L H2SO4electrolyte but also displayed excellent long-term *** hydrogen evolution reaction （HER） performance of MoO3-POM superstructures is significantly better than that of corresponding bulk materials MoO3@PW12O40and Mo O3@Si W12O40,and the overpotentials are about 8.3 and 4.9 times lower than that of single Mo *** work opens an avenue for designing highly surface-exposed catalysts for electrocatalytic H2production and other electrochemical applications.

关键词： Electrocatalysis Hydrogen production Metal oxide Polyoxometalate Superstructure

On-chip light control of semiconductor optoelectronic devices using integrated metasurfaces

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Opto-Electronic Advances 2025年第1期8卷 7-33页

作者： Cheng-Long Zheng Pei-Nan Ni Yi-Yang Xie Patrice Genevet Henan key laboratory of Diamond Optoelectronic materials and Devices Key Laboratory of Materials Physics Ministry of Education School of Physics Zhengzhou University key laboratory of Optoelectronics Technology Beijing University of TechnologyMinistry of Education Colorado School of Mines

Semiconductor optoelectronics devices, capable of converting electrical power into light or conversely light into electrical power in a compact and highly efficient manner represent one of the most advanced technologies ever developed, which has profoundly reshaped the modern life with a wide range of applications. In recent decades, semiconductor technology has rapidly evolved from first-generation narrow bandgap materials(Si, Ge) to the latest fourth-generation ultra-wide bandgap semiconductor(GaO, diamond, AlN) with enhanced performance to meet growing demands. Additionally, merging semiconductor devices with other techniques, such as computer assisted design, state-of-the-art micro/nano fabrications, novel epitaxial growth, have significantly accelerated the development of semiconductor optoelectronics *** them, integrating metasurfaces with semiconductor optoelectronic devices have opened new frontiers for on-chip control of their electromagnetic response, providing access to previously inaccessible degrees of freedom. We review the recent advances in on-chip control of a variety of semiconductor optoelectronic devices using integrated metasurfaces,including semiconductor lasers, semiconductor light emitting devices, semiconductor photodetectors, and low dimensional semiconductors. The integration of metasurfaces with semiconductors offers wafer-level ultracompact solutions for manipulating the functionalities of semiconductor devices, while also providing a practical platform for implementing cuttingedge metasurface technology in real-world applications.

关键词： metasurfaces nanophotonics optoelectronics semiconductor

Understanding the iodine electrochemical behaviors in aqueous zinc batteries

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Journal of Energy Chemistry 2025年第2期101卷 402-415页

作者： Xuefang Xie Xiaoxin Xu Shuquan Liang Guozhao Fang College of Physical Science and Technology Xinjiang University Xinjiang key laboratory of Solid State physics and Devices Xinjiang University School of materials Science & Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University National Energy Metal Resources and New materials key laboratory Central South University

Iodine is widely used in aqueous zinc batteries（ZBs） due to its abundant resources,low cost,and active redox *** addition to the active material in zinc-iodine batteries,iodine also plays an important role in other ZBs,such as regulating the electrochemical behavior of zinc ions,promoting the reaction kinetic and reversibility of other redox pairs,catalytic behaviors related to iodine reactions,coupling with other halogen ions,shuttle behaviors of polyiodides,***,there is currently a lack of comprehensive discussion on these ***,this review provides a comprehensive overview of the electrochemical behaviors of iodide in the aqueous *** effect of iodine ions on the Zn2+desolvation behaviors and the interfacial behaviors of Zn anode was *** redox pairs boosting other redox pairs,such as MnO2/Mn2+redox pair and vanadium redox pair to obtain high reversibility and capacity was also ***,the catalytic behaviors related to iodine reactions in aqueous ZBs,synergistic reaction with other halogen ions and suppression of shuttle behaviors for high performance zinc-iodine batteries were systematically ***,future prospects for designing effective iodine electrochemical behaviors with practicability are proposed,which will provide scientific guidance for the practical application of iodine-related aqueous ZBs.

关键词： Catalytic behavior Iodide ion Redox pairs Shuttle effect Zinc batteries

Effect of divalent cations(Co^(2+) and Ni^(2+)) on microstructure,physical properties and application of NdFeO_(3)

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Journal of Rare Earths 2025年第1期43卷 89-97,I0004页

作者： M.M.Arman materials Science lab(1) Physics DepartmentFaculty of ScienceCairo UniversityGiza12613Egypt

The nanocrystalline samples Nd_(1-x)M_(x)FeO_(3)(x=0.0 and 0.1;M:Co^(2+)and Ni^(2+))were prepared using the citrate combustion *** X-ray diffraction(XRD)pattern confirmed that the nanoparticles were synthesized in an orthorhombic *** particle size of Nd_(1-x)M_(x)FeO_(3) is in the range of 29-59 *** selected area electron diffraction(SAED)indicates the samples were prepared in a polycrystalline *** samples Nd_(1-x)M_(x)FeO_(3)(x=0.0 and 0.1;M:Co^(2+)and Ni^(2+))have anti ferromagnetic *** Fe^(3+)spins are aligned antiparallel,forming the antiferromagnetic(AFM)properties,which are affected by many factors such as the bond angle between the Fe^(3+)(Fe^(3+)-O_(2)--Fe^(3+))and the Dzyaloshinskii-Moriya(D-M)*** doping of Co^(2+)and Ni^(2+)ions in NdFeO_(3) enhances the magnetic properties of the NdFeO_(3).The saturation magnetization(Ms)of Nd_(0.90)Co_(0.10)FeO_(3) increases 1.8times more than that of NdFeO_(3).The exchange bias field(HEX)of the Co-doped sample is two times greater than that of NdFeO_(3).The magnetic anisotropy constant(K)of the 10%Co-doped sample increases by 11 factors compared to that of NdFeO_(3).The Tauc plot illustrates that the samples have a direct optical *** divalent cation substitution(Co^(2+)and Ni^(2+))decreases the optical band gap of NdFeO_(3),leading to the recommendation of using the samples Nd_(0.90)Co_(0.10)FeO_(3) and Nd_(0.90)Ni_(0.10)FeO_(3) in photocatalysis of dye degradation from *** removal efficiencies of Cr6+at pH=6 are 88.06%,85.54%,and 85.52%for the samples NdFeO_(3),Nd_(0.90)Co_(0.10)FeO_(3),and Nd_(0.90)Ni_(0.10)FeO_(3),*** Freundlich isotherm mode is the best-fit model for NdFeO_(3) to adsorb Cr6+ions from aqueous solutions.

关键词： Optical properties Nanoparticles Magnetic properties Perovskites Removal efficiency Rareearths

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Probing the special angle in twisted bilayer MoS2 via angle-dependent scanning tunneling microscopy studies

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Science China(physics,Mechanics & Astronomy) 2025年第2期Mechanics & Astronomy) .卷 157-164页

作者： Xueying Liu Shiying Liu Yulong Xiao Chang Xu Jiaxin Wu Kaihui Li Si-Yu Li Anlian Pan key laboratory for Micro-Nano physics and Technology of Hunan Province Hunan Institute of Optoelectronic Integration and College of Materials Science and EngineeringHunan University School of physics and Electronics Hunan Normal University

Twisted transition metal dichalcogenides（TMDs） homo-bilayers host unique quantum properties,which can be tuned by interlayer twist angle θ.However,the systematic evolution of their typical electronic properties with respect to the twist angle θ,which is crucial for identifying the “special angle” analogous to the “magic angle” of twisted bilayer graphene in correlation physics studies,remains incompletely ***,via scanning tunneling microscopy（STM） and spectroscopy（STS）,we investigate the variation of the moirépotential,flat band,and layer polarization characteristics across a wide range of twist angleθ in twisted bilayer MoS2（TB-MoS2）.The moirépotential of the valence band exhibits a non-monotonic variation with θ,peaking at a maximum value up to 204 me Vat θ～1.7°.Concurrently,at the same θ,the bandwidth of the flat band at the ΓVpoint of the valence band attains its minimum,precisely signifying the “special angle” θc～1.7°in ***,layer polarization in the moirésuperlattice is spatially visualized through the distribution of local density of states（LDOS） at the energies of both ΓVand KVpoints of the valence band,where the polarization degree at the ΓVpoint demonstrates a close dependency on θ.Our findings deepen understanding of twist-angle effect in TMDs,advancing both fundamental physics and practical application.

关键词： twisted bilayer MoS2 flat band moiré potential twist-angle dependence scanning tunneling microscopy

Carbon nanodot-based flexible and self-powered white displays

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Nano Research 2025年第2期18卷 733-740页

作者： Wei Zhang Qing Lou Junlu Sun Juan Liao Guangsong Zheng Fuhang Jiao Wu Chen Xiang Li Jiajia Meng Chong-Xin Shan Lin Dong Henan key laboratory of Diamond Optoelectronic materials and Devices Key Laboratory of Materials PhysicsMinistry of EducationSchool of PhysicsZhengzhou UniversityZhengzhou 450052China

Carbon nanodots(CDs)have emerged as a promising luminescent material,showing significant potential in biological imaging,information security,and illumination displays withintheinternet of things(loT).However,CDs-based electroluminescent devices,especially flexible and self-powered white displays,remain scarcely reported,which limit their applications in human-machine interactions and wearable optoelectronics in the ***,we present a pioneering CDs-based flexible and self-powered white display system with a Commission Internationale de L'Eclairage(CIE)coordinate of(0.31,0.39)by integrating CDs-based alternating current electroluminescent(AcEL)devices with triboelectric *** CDs-based white ACEL devices can be dynamically modulated from light green to white under various supplied frequencies ranging from 50 to 500 *** devices also render from cold white to warm white with correlated color temperature from 9705 to 4538 K,as the concentration ratios of ZnS:Cu phosphors to CDs change from 22:2 to 22:***,these devices exhibit excellent flexibility and stability,maintaining over 95%of their electroluminescent intensities after 4500 cycles even under a large bending angle of 180°with a bending radius of 4.9 ***,this CDs-based flexible and self-powered white display system is worn on the human body to realize real-time illumination display powered by biomechanical energy,such as hand slapping and *** work provides a novel design strategy toward high-performance CD-based flexible and self-powered white displays and expands their potential applications in wearable optoelectronics for the loT.

关键词： carbon nanodot(CD) self-powered system alternating current electroluminescence white display flexible devices

Evaluation of detonation performance of explosives ICM-101, ONC,and TNAZ based on improved VHL equation of state

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Defence Technology 2025年第2期44卷 83-97页

作者： Yong Han Qin Liu Yingliang Duan Yaqi Zhao Xinping Long Institute of Chemical materials China Academy of Engineering Physics China Academy of Engineering physics

Detonation performance is crucial for evaluating the power of high explosives(HEs), and the equation of state(EOS) that accurately describes the high-temperature, high-pressure, and high-temperature, medium-pressure states of detonation products is key to assessing the damage efficiency of these energetic materials. This article examines the limitations of the VLW EOS in representing the thermodynamic states of explosive detonation gas products under high-temperature and medium-to high-pressure conditions. A new gas EOS for detonation products, called VHL(Virial-Han-Long), is proposed. The accuracy of VHL in describing gas states under high-temperature and medium-to high-pressure conditions is verified, and its performance in evaluating explosive detonation and working capabilities is *** results demonstrate that VHL exhibits high precision in calculating detonation performance. Subsequently, the detonation performance of three new HEs(ICM-101, ONC, and TNAZ) was calculated and compared to traditional HEs(TATB, CL-20, and HMX). The results indicate that ONC has superior detonation performance compared to the other explosives, while ICM-101 shows a detonation velocity similar to CL-20 but with slightly lower detonation pressure. The detonation characteristics of TNAZ are comparable to those of the standard HE HMX. From the perspective of products, considering the comprehensive work performance(mechanical work and detonation heat), both ONC and ICM-101demonstrate relatively superior performance.

关键词： Equation of state Detonation performance Working capability Thermodynamics High explosive

Utilizing BP neural networks to accurately reconstruct the tritium depth profile in materials for BIXS

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Nuclear Science and Techniques 2025年第1期36卷 103-114页

作者： Chen Zhao Wei Jin Yan Shi Chang-An Chen Yi-Ying Zhao Institute of materials China Academy of Engineering PhysicsJiangyou 621908China

β-ray-induced X-ray spectroscopy(BIXS)is a promising method for tritium detection in solid materials because of its unique advantages,such as large detection depth,nondestructive testing capabilities,and low requirements for sample ***,high-accuracy reconstruction of the tritium depth profile remains a significant challenge for this *** this study,a novel reconstruction method based on a backpropagation(BP)neural network algorithm that demonstrates high accuracy,broad applicability,and robust noise resistance is *** average reconstruction error calculated using the BP network(8.0%)was much lower than that obtained using traditional numerical methods(26.5%).In addition,the BP method can accurately reconstruct BIX spectra of samples with an unknown range of tritium and exhibits wide applicability to spectra with various tritium ***,the BP network demonstrates superior accuracy and stability compared to numerical methods when reconstructing the spectra,with a relative uncertainty ranging from 0 to 10%.This study highlights the advantages of BP networks in accurately reconstructing the tritium depth profile from BIXS and promotes their further application in tritium detection.

关键词： β-ray-induced X-ray spectroscopy Tritium detection BP network Ridge regression Reconstruction problem

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