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Iron-doping regulated light absorption and active sites in LiTaO_(3)single crystal for photocatalytic nitrogen reduction

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Chinese Chemical Letters 2025年第3期36卷 206-211页

作者： Zhenfei Tang Yunwu Zhang Zhiyuan Yang Haifeng Yuan Tong Wu Yue Li Guixiang Zhang Xingzhi Wang Bin Chang Dehui Sun Hong Liu Lili Zhao Weijia Zhou Institute for Advanced Interdisciplinary Research(iAIR) School of Chemistry and Chemical EngineeringUniversity of JinanJi’nan 250022China State Key Laboratory of Crystal Materials Shandong UniversityJi’nan 250100China Jinan Institute of Quantum Technology Ji’nan 250101China

In contrast to research on active sites in nanomaterials,lithium tantalate single crystals,known for their exceptional optical properties and long-range ordered lattice structure,present a promising avenue for in-depth exploration of photocatalytic reaction systems with fewer constraints imposed by surface ***,the isotropy of a specific facet provides a perfect support for studying heteroatom ***,this work delves into the intrinsic catalytic sites for photocatalytic nitrogen fixation in iron-doped lithium tantalate single *** presence of iron not only modifies the electronic structure of lithium tantalate,improving its light absorption capacity,but also functions as an active site for the nitrogen adsorption and *** photocatalytic ammonia production rate of the iron-doped lithium tantalate in pure water is maximum 26.95μg cm^(−2)h^(−1),which is three times higher than that of undoped lithium *** combination of first-principles simulations with in situ characterizations confirms that iron doping promotes the rate-determining step and changes the pathway of hydrogenation to associative *** study provides a new perspective on in-depth investigation of intrinsic catalytic active sites in photocatalysis and other catalytic processes.

关键词： Nitrogen reduction Photocatalysis Fe doping Single crystal Lithium tantalate crystal

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Effcient and stable hydrogen evolution and antibiotic degradation in all-pH-scale water/alkaline seawater using Fe-Co phosphide hollow nanocages fabricated from metallurgical solid waste

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Journal of Energy Chemistry 2025年第2期101卷 661-675,I0014页

作者： Zekun Zhao Suqin Li Yongkui Li Qingqing Xia Haiping Lei Hao Zhang Shuqiang Jiao School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBejing 100083China State Key Laboratory of Advanced Metallurgy University of Science and Technology BejingBeijing 100083China

The utilization of seawater,a plentiful and cost-effective resource,instead of freshwater for H_(2)production through electrolysis has garnered significant ***,we present the synthesis of open-structured Fe-Co phosphide(FCP)nanocages for the overall seawater electrolysis,employing metallurgical solid waste(steel rolling sludge,SRS)as the precursor *** FCP nanocages demonstrate exceptional catalytic activity for the hydrogen evolution reaction(HER)in all pH scales,achieving performance comparable to that of Pt/C catalysts at high current densities,The electrolyzer assembled with FCP‖FCP requires 1.57 and 1.68 V to achieve current densities of 10 and 100 mA cm^(-2),***,the assembled FCP electrolyzer showcases over 100 h of cycling stability and nearly 100%Faradaic ***,it can be powered by commercially available silicon solar panels,operating under an intensity of 100 mW cm^(-2),and by wind-driven sources,rendering it highly promising for real-world applications,The seawater hydrogen evolution system coupled with levofloxacin(LEV)degradation was constructed for the first *** oxidation potential of LEV oxidation reaction(LEVOR)was significantly lower than that of oxygen evolution reaction(OER),indicating that the LEV degradation reaction occurred preferentially and achieved a removal efficiency of 98.57%within 60 *** study provides effective strategies for valorizing SRS and offers insights into the fabrication of highperformance catalysts.

关键词： Metallurgical solid waste Fe-Cophosphide nanocages All-pH-scale Synergistic catalysis High current density Levofloxacin

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Advancing antibiotic detection and degradation:recent innovations in graphitic carbon nitride(g-C_(3)N_(4))applications

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Journal of Environmental Sciences 2025年第4期150卷 657-675页

作者： Rui Liu Chaojun Zhang Rijia Liu Yuan Sun Binqiao Ren Yuhang Tong Yu Tao Center of Pharmaceutical Engineering and Technology Harbin University of CommerceHarbin 150076China Institute of Advanced Technology Heilongjiang Academy of SciencesHarbin 150080China School of Environment Harbin Institute of TechnologyHarbin 150090China Materials Science and Physical Chemistry Department University of BarcelonaBarcelona 08028Spain State Key Laboratory of Urban Water Resource and Environment School of Civil&Environmental EngineeringHarbin Institute of Technology ShenzhenShenzhen 518055China

The uncontrolled release of antibiotics into the environment would be extremely harmful to human health and ***,it is in urgent need to monitor the environment and promote the detection and degradation of antibiotics to the relatively harmless by-products to a feasible *** carbon nitride(g-C_(3)N_(4))is a non-metallic n-type semiconductor that can be used for the antibiotic detection and degradation due to its easy synthesis process,excellent chemical stability and unique optical ***,the utilization of visible light,electron-hole recombination and electron conductivity have hindered its potential applications in the fields of photocatalytic degradation and electrochemical *** previous publications have highlighted the diverse modification methods for the g-C_(3)N_(4)-based materials,the underlying structure-performance relationships of g-C_(3)N_(4),especially for the detection and degradation of antibiotics,remains to be further *** view of this,the current review centered on the recent progress in the modification techniques of g-C_(3)N_(4),the detection and degradation of antibiotics using the g-C_(3)N_(4)-based materials,as well as the potential antibiotic degradation mechanisms of the g-C_(3)N_(4)-based ***,the underlying applications of the g-C_(3)N_(4)-based materials for antibiotic detection and degradation were also *** review would provide a valuable research foundation and the up-to-date information for the g-C_(3)N_(4)-based materials to combat antibiotic pollution in the environment.

关键词： g-C_(3)N_(4) Antibiotics Modification techniques Photocatalytic degradation Electrochemical detection

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Bacillus atrophaeus DX-9 biocontrol against potato common scab involves significant changes in the soil microbiome and metabolome

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aBIOTECH 2025年第1期6卷 33-49页

作者： Jingjing Cao Yue Ma Jing Fu Zhiqin Wang Yonglong Zhao Naiqin Zhong Pan Zhao State Key Laboratory of Plant Genomics Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China Engineering Laboratory for Advanced Microbial Technology of Agriculture Chinese Academy of SciencesBeijing 100101China School of Agriculture Ningxia UniversityYinchuan 750000China Qi Biodesign Beijing 100101China Key Laboratory of Potato Industry Integration and Development Enterprises in Inner Mongolia Autonomous Region Hulunbuir 021000China

Potato common scab(CS)is a worldwide disease,caused by Streptomyces spp.,and its presence reduces the market value of potatoes.A nontoxic and potentially effective approach in many control strategies is the use of antagonistic microbes as biocontrol *** this study,Bacillus atrophaeus DX-9 was isolated and assessed for its ability to protect against *** integrated metagenomic and metabolomic analyses,changes in the soil microbial community structure and soil properties were analyzed to understand the effects of Bacillus atrophaeus DX-9 on *** studies revealed that DX-9 inoculation could significantly decrease CS disease rate,disease index,and the number of CS pathogens,along with an increase in soil N and P *** metagenomic assays identified 102 phyla and 1154 genera,and DX-9 inoculation increased the relative abundances of the phyla Pseudomonadota,Chloroflexota and ***,an increase in the relative abundance of genera,such as Bradyrhizobium,Agrobacterium,and Nitrobacter,were significantly and positively correlated with soil N and *** analysis revealed that DX-9 inoculation significantly increased the soil levels of phytolaccoside A,7,8-dihydropteroic acid,novobiocin,and *** compounds were enriched in microbe pathway metabolites,including xenobiotic biodegradation and metabolism,biosynthesis of other secondary metabolites,and metabolism of cofactors and *** summary,the use of Bacillus atrophaeus DX-9 against potato CS offers an alternative biocontrol method that can improve both soil microbial community and *** study provides insight into the potential mechanisms by which microbial inoculants can control CS disease.

关键词： Bacillus atrophaeus Solanum tuberosum Biocontrol Common scab Soil properties Microbial community

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Phase transformation of two-dimensional nanomaterials: state-of-the-art progress in designing strategies and catalytic applications

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Science China Materials 2025年第1期68卷 65-85页

作者： Zeqi Wu Feng Niu Da Chen Yuexiang Huang Guigao Liu Yong Zhou Wenguang Tu Xi Zhu Zhigang Zou College of Materials and Chemistry China Jiliang UniversityHangzhou 310018China School of Science and Engineering The Chinese University of Hong Kong(Shenzhen)Shenzhen 518172China National Special Superfine Powder Engineering Research Center School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing 210094China Jiangsu Key Laboratory for Nano Technology National Laboratory of Solid State MicrostructuresCollaborative Innovation Center of Advanced MicrostructuresSchool of PhysicsNanjing UniversityNanjing 210093China

Phase transformation of two-dimensional(2D)nanomaterials can lead to significant changes in electronic and optical properties,which enables the development of novel *** strategies for phase engineering of 2D nanomaterials have drawn considerable attention in recent *** review focuses on the state-of-the-art progress in the phase transformation of 2D nanomaterials and their catalytic ***,the basic concepts of phase transformation and the outstanding electronic and optical properties induced by phase transformation are briefly ***,different strategies for achieving phase transformation are discussed in detail and classified into several types based on their characteristics,including(i)doping,(ii)external fields,(iii)optical irradiation,(iv)strain effect,(v)high-energy particle excitation,and(vi)thermal *** applications of 2D nanomaterials in catalysis based on phase transformation have also been ***,a summary of the technical challenges to phase control in 2D nanomaterials and potential opportunities for developing novel applications is presented.

关键词： phase transformation two-dimensional nanomaterials strategy catalysis application

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Simultaneous enhancement of sensitivity, resonant frequency, and overload capability of piezoresistive accelerometers by heavily-doped fillet structures on sensing beams

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IEEE Sensors Journal 2025年第11期25卷 19138-19146页

作者： Xia, Yong Wang, Tao Lv, Yang Han, Xiangguang Yu, Mingzhi Tan, Renjie Huang, Mimi Jia, Chen Zhao, Libo Sun, Lin Yang, Ping Lu, Dejiang Xi'an Jiaotong University School of Mechanical Engineering State Key Laboratory for Manufacturing Systems Engineering International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies Xi'an710049 China Ningbo CRRC Times Transducer Technology Co. LTD Department of Basic Research and Development Ningbo315021 China Research Institute for Intelligent Sensing Technology and System School of Instrument Science and Technology State Key Laboratory for Manufacturing Systems Engineering State Industry-Education Integration Center for Medical Innovations International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies Xi'an Jiaotong University Xi'an710049 China Shandong Laboratory of Advanced Materials and green Manufacturing at Yantai Yantai264000 China

High sensitivity, high natural frequency, and high overload capability are desired for accelerometers used in industrial applications, but simultaneously enhancing all is challenging. Here, via designing novel heavily-doped fillet structures, we prove the sensitivity, resonant frequency, and overload capability can be simultaneously enhanced. The enhancements are attributed to regulations of stress concentration and effective sensing regions by the heavily-doped fillets. The sensors with and without fillets are designed, fabricated, packaged, and tested. The results show a sensitivity of 0.31±0.02 mV/g@5V, a natural frequency of 37.87±2.09 kHz, and an overload of 10040.17±531.76 g for sensors with 10-μm fillets, which are superior to 0.27±0.01 mV/g@5V, 34.13±0.90 kHz, and 7368.55±843.92 g for those no-fillet counterparts. Additionally, the developed sensor further exhibited feasibility in air-bearing vibration monitoring. The proposed design is envisioned to give insights into the novel designs of high-performance stress-based sensors, including accelerometers, pressure sensors, and strain gauges. © 2001-2012 IEEE.

关键词： Strain gages

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Emerging natural clay-based materials for stable and dendrite-free lithium metal anodes:A review

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Chinese Chemical Letters 2025年第2期36卷 133-144页

作者： Haobo Wang Fei Wang Yong Liu Zhongxiu Liu Yingjie Miao Wanhong Zhang Guangxin Wang Jiangtao Ji Qiaobao Zhang School of Materials Science and Engineering Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal new Materials and Advanced Processing TechnologyHenan University of Science and TechnologyLuoyang 471023China Faculty of Engineering Huanghe Science and Technology UniversityZhengzhou 450063China Henan Key Laboratory of Non-Ferrous Materials Science&Processing Technology Henan University of Science and TechnologyLuoyang 471023China College of Agricultural Equipment Engineering Henan University of Science and TechnologyLuoyang 471023China State Key Laboratory of Physical Chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamen 361005China

Lithium metal is one of the most promising anodes for lithium batteries because of their high theoretical specific capacity and the low electrochemical ***,the commercialization of lithium metal anodes(LMAs)is facing significant obstacles,such as uncontrolled lithium dendrite growth and unstable solid electrolyte interface,leading to inferior Coulombic efficiency,unsatisfactory cycling stability and even serious safety *** low-cost natural clay-based materials(NCBMs)in LMAs is deemed as one of the most effective methods to solve aforementioned *** NCBMs have received considerable attention for stabilizing LMAs due to their unique structure,large specific surface areas,abundant surface groups,high mechanical strength,excellent thermal stability,and environmental *** the rapidly growing research enthusiasm for this topic in the last several years,here,we review the recent progress on the application of NCBMs in stable and dendrite-free *** different structures and modification methods of natural clays are first *** addition,the relationship between their modification methods and nano/microstructures,as well as their impact on the electrochemical properties of LMAs are systematically ***,the current challenges and opportunities for application of NCBMs in stable LMAs are also proposed to facilitate their further development.

关键词： Natural clay-based materials Aolid-state electrolyte Surface modification Li metal anodes Rechargeable batteries

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La-substituted W-type barium-nickel ferrites for tunable and high-performance electromagnetic wave absorption

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International Journal of Minerals,Metallurgy and Materials 2025年第3期32卷 645-656页

作者： Long Wang Jiurong Liu Shenghui Xie Yanli Deng Zhou Wang Shanyue Hou Shengying Yue Gang Wang Na Wu Zhihui Zeng Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinan 250061China Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education and International Center for Dielectric ResearchSchool of Electronic Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China Army Engineering University of PLA College of Field Engineering Nanjing 210007China Laboratory for Multiscale Mechanics and Medical Science State Key Laboratory for Strength and Vibration of Mechanical StructuresSchool of AerospaceXi’an Jiaotong UniversityXi’an 710049China Department of Electrical and Computer Engineering Beckman Institute for Advanced Science and TechnologyUniversity of Illinois at Urbana-ChampaignUrbana 61801USA School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100China

W-type barium-nickel ferrite(BaNi_(2)Fe_(16)O_(27))is a highly promising material for electromagnetic wave(EMW)absorption be-cause of its magnetic loss capability for EMW,low cost,large-scale production potential,high-temperature resistance,and excellent chemical ***,the poor dielectric loss of magnetic ferrites hampers their utilization,hindering enhancement in their EMW-absorption *** efficient strategies that improve the EMW-absorption performance of ferrite is highly desired but re-mains ***,an efficient strategy substituting Ba^(2+)with rare earth La^(3+)in W-type ferrite was proposed for the preparation of novel La-substituted ferrites(Ba_(1-x)LaxNi_(2)Fe_(15.4)O_(27)).The influences of La^(3+)substitution on ferrites’EMW-absorption performance and the dissipative mechanism toward EMW were systematically explored and ***^(3+)efficiently induced lattice defects,enhanced defect-induced polarization,and slightly reduced the ferrites’bandgap,enhancing the dielectric properties of the ***^(3+)also enhanced the ferromagnetic resonance loss and strengthened magnetic *** effects considerably improved the EMW-absorption perform-ance of Ba_(1-x)LaxNi_(2)Fe_(15.4)O_(27)compared with pure W-type *** x=0.2,the best EMW-absorption performance was achieved with a minimum reflection loss of-55.6 dB and effective absorption bandwidth(EAB)of 3.44 GHz.

关键词： electromagnetic wave absorption W-type barium ferrite rare earth dielectric

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Design and Experimental Study of a Toroidal Winding Flywheel Energy Storage Motor

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IEEE Transactions on Energy Conversion 2025年

作者： Ye, Caiyong Yao, Kexin Liu, Yi Cao, Guangdong Qi, Xiaodong Li, Zhixin Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Wuhan430074 China Naval University of Engineering College of Electrical Engineering Wuhan430074 China

Design cost and bearing stability have always been a challenge for flywheel energy storage system (FESS). In this study, a toroidal winding flywheel energy storage motor is designed for low and medium speed occasions, aiming to meet the challenges of conventional high-speed flywheel energy storage motors in terms of process cost and control difficulty. Firstly, the research motivation of this paper is introduced by analyzing the traditional high-speed flywheel energy storage motor structure and its problems. Secondly, the hybrid shaft-bearing system is established to improve the stability of shaft control and reduce maintenance costs. The magnetic equivalent circuit (MEC) of the axial magnetic bearing (AMB) is created to simplify the design and radial mechanical bearing (RMB) life is analyzed. Besides, comparing different rotor and winding structures, an interior permanent magnet motor (IPM) and toroidal winding (TW) scheme is proposed to reduce production costs and increase the critical speed of the flywheel rotor. Fourthly, the performance indexes of the TW flywheel energy storage motor, such as rotor static, losses, temperature rise and electromagnetic vibration are analyzed by the FEA. Finally, a 10kW-3MJ prototype is manufactured and tested. The experiment verifies the rationality of the concept and design. This article provides reference for the design and optimization of flywheel energy storage motors in low and medium speed occasions, which has certain theoretical and practical application significance. © 1986-2012 IEEE.

关键词： Flywheels

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Editorial: special topic on photovoltaic materials, devices, and applications

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Science China Materials 2025年第5期68卷 1311-1313页

作者： Lifu Zhang Bin Kan Yiwang Chen Yongsheng Chen Yongfang Li Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education Jiangxi Normal University School of Materials Science and Engineering National Institute for Advanced MaterialsNankai University State Key Laboratory and Institute of Elemento-Organic Chemistry Frontiers Science Center for New Organic MatterThe Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center (RECAST)College of ChemistryNankai University Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of Sciences

To reduce society’s dependence on fossil fuels, new photovoltaic technologies are driving a fundamental change in the way renewable energy is utilized. This issue of “Photovoltaic Materials, Devices, and Applications” focuses on the latest break-throughs in this field, and systematically discusses the path of technological innovation, practical challenges, and future opportunities.

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