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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

Cu gradient design to attain high efficient solution-processed CuIn（S,Se）2 solar cells

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Journal of Energy Chemistry 2025年第2期101卷 213-222页

作者： xuejun xu Rutao meng Yue Liu Han xu Jianpeng Li Yi Zhang Institute of Photoelectronic Thin Film Devices and Technology State Key Laboratory of Photovoltaic Materials and Cells and Engineering Research Center of Thin Film Optoelectronics Technology Ministry of Education Nankai University

Solution-processed chalcopyrite solar cells are widely regarded as a promising alternative method in reducing the cost compared with vacuum-based *** is noted that the absorber layer usually needs to be prepared under a high insert pressure（～1.6 atm） to suppress element loss or under a mild pressure but additional surface etching is needed for fabricating high efficient solar ***,a copper gradient structured precursor is proposed to prepare CuIn（S,Se）2（CISSe） film under a mild pressure（1.1 atm）.The designed gradient Cu not only promotes crystal grain growth and tailors the defects,but also avoids the surface etching of the formed CISSe film for the fabrication of high efficient solar ***,Cu gradient design decreases the conduction band offset of heterojunction,boosting the carriers transport across the p-n ***,a 13,35% efficient CISSe solar cell,comparable to the high efficient CISSe solar cell prepared by this method under high pressure or with film surface etching,is *** work provides a facile pathway to fabricate high efficient solution-processed chalcopyrite solar cell,avoiding high selenization pressure and film etching,and shows huge potential for solutionprocessed copper-based solar cells.

关键词： Band alignment Carrier transport CISSe Crystal grain growth Cu gradient Defect passivation

Superhydrophobic and corrosion-resistant siloxane-modified MgAl-LDHs coatings on magnesium alloy prepared under mild conditions

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 450-463页

作者： Wenxi Zhang Zhangzelong Zhuo Dan xu Liang Wu Zhihui xie Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical EngineeringChina West Normal UniversityNanchong 637002China College of Materials Science and Engineering/National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China

We have developed a superhydrophobic and corrosion-resistant LDH-W/PFDTMS composite coating on the surface of Mg *** composite comprised a tungstate-intercalated(LDH-W)underlayer that was grown at low temperature(relative to hydrothermal reaction conditions)under atmospheric pressure and an outer polysiloxane layer created from a solution containing perfluorodecyltrimethoxysilane(PFDTMS)using a simple immersion *** successful intercalation of tungstate into the LDH phase and the following formation of the polysiloxane layer were confirmed through X-ray diffraction(XRD),Fourier transform infrared(FTIR)spectroscopy,and X-ray photoelectron spectroscopy(XPS).The corrosion resistance of the LDH-W film,both before and after the PFDTMS modification,was evaluated using electrochemical impedance spectroscopy(EIS),Tafel curves,and immersion *** results showed that Mg coated with LDH-W/PFDTMS exhibited significantly enhanced corrosion protection compared to the unmodified LDHW film,with no apparent signs of corrosion after exposure to 3.5wt%NaCl solution for 15 ***,the LDH-W/PFDTMS coating demonstrated superior superhydrophobicity and self-cleaning properties against water and several common beverages,as confirmed by static contact angle and water-repellency *** results offer valuable insights into preparing superhydrophobic and corrosion-resistant LDH-based composite coatings on Mg alloy surfaces under relatively mild reaction conditions.

关键词： Mg alloy corrosion coating layered double hydroxide

Actively tunable electromagnetically induced transparency in hybrid Dirac-VO_(2) metamaterials

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Optoelectronics Letters 2025年第1期21卷 13-20页

作者： DI Ke xie meng XIA Huarong CHENG Anyu LIU Yu DU Jiajia Department of Optoelectronic Engineering Chongqing University of Post and TelecommunicationsChongqing 400065China Chongqing Key Laboratory of Autonomous Navigation and Microsystem Chongqing University of Posts and TelecommunicationsChongqing 400065China Department of Automation Chongqing University of Post and TelecommunicationsChongqing 400065China

In this paper,we present a metamaterial structure of Dirac and vanadium dioxide(VO_(2))and investigate its optical properties using the finite-difference time-domain(FDTD)*** the phase transition feature of VO_(2),the design can realize active tuning of the plasmon induced transparency(PIT)effect at terahertz frequency,thereby converting from a single PIT to a *** VO_(2) is in the insulating state,the structure is symmetric to obtain a single-band PIT *** VO_(2) is in the metallic state,the structure turns asymmetric to realize a dual-band PIT *** design provides a reference direction for the design of actively tunable ***,it is discovered that the transparent window's resonant frequency and the Fermi level in this structure have a somewhat linear *** addition,the structure achieves superior refractive index sensitivity in the terahertz band,surpassing 1 THz/***,the design exhibits encouraging potential for application in refractive index sensors and optical switches.

关键词： tunable tuning transparency

BEV-Locator:an end-to-end visual semantic localization network using multi-view images

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Science China(Information Sciences) 2025年第2期68卷 134-150页

作者： Zhihuang ZHANG meng xu Wenqiang ZHOU Tao PENG Liang LI Stefan POSLAD School of Vehicle and Mobility Tsinghua University School of Information Technology & Management University of International Business and Economics Qcraft Inc. School of Electronic Engineering and Computer Science Queen Mary University of London

Accurate localization ability is fundamental in autonomous driving. Traditional visual localization frameworks approach the semantic map-matching problem with geometric models, which rely on complex parameter tuning and thus hinder large-scale deployment. In this paper, we propose BEV-Locator: an end-to-end visual semantic localization neural network using multi-view camera images. Specifically, a visual BEV(bird-eye-view) encoder extracts and flattens the multi-view images into BEV space. While the semantic map features are structurally embedded as map query sequences. Then a cross-model transformer associates the BEV features and semantic map queries. The localization information of ego-car is recursively queried out by cross-attention modules. Finally, the ego pose can be inferred by decoding the transformer outputs. This end-to-end model speaks to its broad applicability across different driving environments, including high-speed scenarios. We evaluate the proposed method in large-scale nuScenes and Qcraft datasets. The experimental results show that the BEV-Locator is capable of estimating the vehicle poses under versatile scenarios, which effectively associates the cross-model information from multi-view images and global semantic maps. The experiments report satisfactory accuracy with mean absolute errors of 0.052 m, 0.135 m and 0.251° in lateral, longitudinal translation and heading angle degree.

关键词： visual localization semantic map bird-eye-view transformer pose estimation

Observation of topological charge transformations in acoustic vortex using passive periodic systems

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Science China(Physics,Mechanics & Astronomy) 2025年第1期68卷 136-143页

作者： Di-Chao Chen xie Liu Changqing xu Da-Jian Wu Ying Cheng Xiao-Jun Liu School of Physics and Technology Nanjing Normal UniversityNanjing 210023China Key Laboratory of Modern Acoustics School of PhysicsNanjing UniversityNanjing 210093China

Vortex transmutation utilizes a periodic system,which not only enables the alteration of the topological charge(TC)of unstable input vortices but also facilitates their transformation into stable *** approach is crucial for investigating the characteristics of vortices in various wave ***,we achieve acoustic vortex TC transmutation by employing a welldesigned dual-structured plate external system(DPES).The interactions between the acoustic vortex and the finite-order discrete rotational symmetry lead to the transformation of its topological charge when complete rotational symmetry is broken to Nthorder discrete *** results experimentally demonstrate the acoustic vortex TC transmutation based on passive artificial structures,enabling numerous applications in particle manipulation and information multiplexing as well as advancing our understanding and control over free-space acoustic vortices.

关键词： acoustic vortex topological charge transformation artificial structure

Microdynamic modulation through Pt–O–Ni proton and electron “superhighway” for pH-universal hydrogen evolution

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Journal of Energy Chemistry 2025年第2期101卷 808-815页

作者： Dewen Wang Yuting Chen Bohan Yao Tian meng Yanchao xu Dongxu Jiao Zhicai Xing Xiurong Yang State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences University of Science and Technology of China Department of Chemistry Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Energy Materials for Electric Power Southern University of Science and Technology State Key Laboratory of Automotive Simulation and Control School of Materials Science and Engineering Jilin University

Optimizing the microdynamics in alkaline and neutral conditions is a significant but challenging task in developing pH-universal hydrogen evolution（HER） ***,a unique Pt-O-Ni bridge has been constructed to alter the coordination and electronic environment between Pt nanoparticles（Pt_n）and nickel metaphosphate（NPO） substrate（Pt-NPO）.Sufficient electron transfer from NPO to Pt_n to maintain an electron-rich environment and a low valence state of Pt_***,H*is produced from the H2O dissociation on Ni site and then spillover toward Pt sites to bind into H2,which makes up for the insufficient H2O dissociation ability of Pt in Volmer ***-NPO exhibits long-term stability and only need the overpotentials of 22.3,33.0 and 30.5 mV to attain 10 mA cm-2in alkaline,neutral and acidic media,*** anion-exchange membrane（AEM） water electrolyzer catalyzed by Pt-NPO shows high water electrolysis performance that a cell voltage of 1.73 V is needed to obtain the current density of500 mA cm-2in 1 M KOH at 80℃,at the same time maintains good stability for 350 *** regulation strategy proposed in this work is helpful for the design and synthesis of highly efficient pH-universal HER electrocatalysts.

关键词： Atomic and electronic regulation Hydrogen evolution reactions Metal-support interactions Microdynamics pH-universal HER electrocatalysts

Phase equilibria of slag systems“FeO”−SiO_(2)−CaO−Al_(2)O_(3)and“FeO”−SiO_(2)−CaO−MgO at 1200℃and p(O_(2))of 10^(−7)kPa

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中国有色金属学报 2025年第1期35卷 338-348页

作者： Sui xie Qin-meng WANG xue-yi GUO Chun-fa LIAO Bao-jun ZHAO Faculty of Materials Metallurgy and ChemistryJiangxi University of Science and TechnologyGanzhou 341000China National Rare Earth Functional Material Innovation Center Ganzhou 341000China School of Metallurgy and Environment Central South UniversityChangsha 410083China Sustainable Minerals Institute The University of QueenslandBrisbane 4072Australia

High-temperature experiments were carried out for the slag systems of“FeO”−SiO_(2)−CaO−Al_(2)O_(3)and“FeO”−SiO_(2)−CaO−MgO at 1200℃and p(O_(2))of 10^(−7)*** equilibrated samples were quenched,and the phase compositions were measured by electron probe microanalysis(EPMA).A series of pseudo-ternary and pseudo-binary phase diagrams are constructed to demonstrate their applications in copper smelting process and evaluation of the thermodynamic *** and tridymite are identified to be the major primary phases in the composition range related to the copper smelting *** is found that the operating window of the smelting slag is primarily determined by w_(Fe)/w_(SiO_(2))ratio in the *** MgO and Al_(2)O_(3)in the slag reduce the operating window which requires extra fluxing agent to keep the slag to be fully *** spinel solid solutions cause inaccurate predictions of the current thermodynamic database.

关键词： phase equilibrium “FeO”−SiO_(2)−CaO−Al_(2)O_(3)slag system “FeO”−SiO_(2)−CaO−MgO slag system oxygen partial pressure copper smelting slag FactSage

TKN3 affects cell expansion to regulate fruit development in tomato

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Horticultural Plant Journal 2025年第1期11卷 251-263页

作者： Shuai Sun Yaqin Yuan meng xu Zhiqiang Liu Xiaowei Yuan Xingsheng Li Ren Li Xia Cui Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture Sino-Dutch Joint Laboratory of Horticultural GenomicsInstitute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081China Key Laboratory of Qualityand Safety Control for Subtropical Fruitand Vegetable Ministry of Agriculture and Rural AffairsCollege of Horticulture ScienceZhejiang A&F UniversityHangzhouZhejiang 311300China Huasheng Agriculture Limited Liability Company QingzhouShangdong 262500China

Tomato is a model system for studying fleshy fruit *** fertilization,cell division and expansion in the pericarp are crucial for fruit development and determine the final fruit ***3 was found to be expressed in the tomato ovary wall/pericarp of zero to two days post-anthesis fruits as a KNOX I class member,but its function in fruit development was ***,we found that mutations of TKN3 by CRISPR/Cas9 caused fruit developmental defects,and fruit weight was dramatically reduced in the tkn3cr *** observation of fruit pericarps revealed that mutation of TKN3 repressed cell expansion after fertilization,leading to flattened cells in the mesocarp and thereby thinner pericarps in red ***,tkn3cr mutants also displayed pleiotropic phenotypes including enlarged leaves and floral organs,indicating conserved functions in meristem maintenance and leaf *** two-hybrid and BiFC assays further showed that TKN3 could interact with Solyc10g086640(a homolog of Arabidopsis PNY),which has a similar expression pattern as ***-wide identification of genes regulated by TKN3 indicated that the auxin and gibberellin(GA)pathways might mediate the function of *** works revealed that TKN3 controls cell expansion in pericarps,and provides new insights into the roles of KNOX proteins in fruit development.

关键词： Solanum lycopersicum TKN3 Tomato fruits Cell expansion BELLs Transcription factor