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full-temperature covered switching material with triple optic-dielectric states in a lead-free hybrid perovskite

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Science China Materials 2020年第11期63卷 2281-2288页

作者： Tie Zhang Lulu Chu Zhixu Zhang Jie Li Wanying Zhang Pingping Shi Qiong Ye da-wei fu Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjing 211189China Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsZhejiang Normal UniversityJinhua 321004China

Optic-electric responsive materials have attracted much attention for their applications in temperaturesensing,actuators,and memory ***,it is a challenge to integrate various functions to form multifunctional responsive *** molecule-based hybrid materials usually consist of organic and inorganic components,the introduction of multiple functions can be achieved through structural *** far,even though fulltemperature cover is required for device applications,fulltemperature covered multi-switchable hybrid materials have rarely been successfully ***,the dynamic[(CH3)3NOH]+cation and luminous center Mn(II)were introduced to form a hybrid material[(CH3)3NOH][Mn Cl3],showing multiple temperature-responsive *** temperature change,it exhibits multi-state dielectric switching response and intensity or peak shift response of luminous in full-temperature range(low,room,and high temperatures).These responsive behaviors are triggered by the motion or reorientation of[(CH3)3NOH]+cations and inorganic ***,the switchable photoelectric material has potential applications in multiple encrypted storage and sensor devices.

关键词： responsive material multiple dielectric states crystal perovskite

Acetylene/argon mixture plasma to build ultrathin carbon bridge of CF_(x)/C/MnO_(2) for high-rate lithium primary battery

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Rare Metals 2024年第6期43卷 2574-2584页

作者： da-wei Zou Xing-Guang fu Gao-Bang Chen Yi-Fan Liu Bao-Shan Wu Xian Jian School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 31300lChina

Forming an ultrathin conducting layer on a fluorinated carbon(CFx)surface for reducing severe electrochemical polarization in lithium/fluorinated carbon primary batteries(Li/CF_(x))remains a considerable challenge for achieving batteries with excellent rate ***,CFxwas modified by using acetylene/argon mixture plasma combined with MnO_(2)*** CF_(x)/C/MnO_(2)composite effectively reduced the voltage hysteresis and improved the electrochemical performance of Li/CF_(x).The excellent rate performance of CF_(x)/C/MnO_(2)was due to the high electrochemical activity provided by the atomicscale conductive carbon layer and ultrafine MnO_(2)*** with pristine CF_(x),the charge transfer resistance of the optimized CF_(x)/C/MnO_(2)decreased from 218.5 to 48.2Ω,the discharge rate increased from 2C to 10C,and the power density increased from 3.11 to 13.44 kW·g^(-1),The intrinsic reason for the enhanced rate performance was attributed to the fact that the ultrathin carbon layer acted as a conductive bridge to reduce the voltage hysteresis at the initial stage of the Li/CF_(x)discharge,and the high electrochemical activity of the ultrafine MnO_(2)particles provided a faster lithium-ion diffusion rate.

关键词： C_(2)H_(2)/Ar plasma Fluorinated carbon Lithium primary battery MnO_(2)

缬沙坦类似物合成中间产物的捕获(Ⅱ)(英文)

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无机化学学报 2007年第1期23卷 281-282页

作者：付大伟赵红东南大学化学化工学院南京210096

In this article we mainly discuss the effect of anion of Lewis acid on the structure of the intermediate in synthesis of valsartan analogue. The crystal belongs to monoclinic system with space group P21/c, and a=1.099 9(3) nm, b=1.913 4(5) nm, c=0.977 8(3) nm, β=104.806(4)°, V=1.989 5(9) nm3, Dc=1.708 g·cm-3, Z=18. CCDC: 629931.

关键词：缬沙坦类似物锌四唑水热合成

Development of component stiffness equations for thread-fixed one-side bolt connections to an enclosed rectangular hollow section column under tension

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Frontiers of Structural and Civil Engineering 2024年第4期18卷 568-586页

作者： fu-wei WU Yuan-Qi LI Department of Structural Engineering Tongji UniversityShanghai 200092China State Key Laboratory of Disaster Reduction in Civil Engineering Tongji UniversityShanghai 200092China

The derivation and validation of analytical equations for predicting the tensile initial stiffness of threadfixed one-side bolts(TOBs),connected to enclosed rectangular hollow section(RHS)columns,is presented in this *** unknown stiffness components are considered:the TOBs connection and the enclosed RHS ***,the trapezoidal thread of TOB,as an equivalent cantilevered beam subjected to uniformly distributed loads,is analyzed to determine the associated *** on the findings,the thread-shank serial-parallel stiffness model of TOB connection is *** analysis of the tensile stiffness of the enclosed RHS face due to two bolt forces,the four sidewalls are treated as rotation constraints,thus reducing the problem to a two-dimensional plate *** to the load superposition method,the deflection of the face plate is resolved into three components under various boundary and load *** to the plate deflection theory of Timoshenko,the analytical solutions for the three deflections are derived in terms of the variables of bolt spacing,RHS thickness,height to width ratio,***,the validity of the above stiffness equations is verified by a series of finite element(FE)models of T-stub *** proposed component stiffness equations are an effective supplement to the component-based method.

关键词： initial stiffness component based method thread-fixed one-side bolt rectangular hollow sections analytical equation

具有强蓝色荧光发射效应的二维四方格子化合物:萘普生锌配聚物(英文)

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无机化学学报 2007年第1期23卷 118-121页

作者：付大伟瞿志荣东南大学化学化工学院南京210096

ZnCl2和(S)-奈普生(H-奈普生)反应得到一个二维层状配位聚合物[Zn((S)-Naproxen)(OH)]n(1)。这是第一个基于奈普生的配位聚合物,本文还提供了对奈普生和金属离子反应的新的见解。这一聚合物在室温下有很强的蓝色荧光并且具有一定的SHG... 详细信息

ZnCl2和(S)-奈普生(H-奈普生)反应得到一个二维层状配位聚合物[Zn((S)-Naproxen)(OH)]n(1)。这是第一个基于奈普生的配位聚合物,本文还提供了对奈普生和金属离子反应的新的见解。这一聚合物在室温下有很强的蓝色荧光并且具有一定的SHG效应。

关键词：奈普生锌配位聚合物荧光水热合成

Thermal-Induced Ferroelastics in Two Lead-Free Organic-Inorganic Hybrid Perovskites

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CCS Chemistry 2023年第8期5卷 1942-1951页

作者： Pei-Zhi Huang Hao-Fei Ni Chang-Yuan Su Meng-Meng Lun Hai-Feng Lu da-wei fu Qiang Guo Institute for Science and Applications of Molecular Ferroelectrics Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsZhejiang Normal UniversityJinhuaZhejiang 321004 Ordered Matter Science Research Center Jiangsu Key Laboratory for Science and Applications of Molecular FerroelectricsSoutheast UniversityNanjingJiangsu 211189

Lead-based organic-inorganic hybrids occupy a niche in the field of optoelectronics due to exceptional semiconducting properties and potential ***,the possible toxicity of lead restricts their widespread application to a certain ***,two new lead-free ferroelastic semiconductors are reported:[DMMClEA]_(3)Bi_(2)Br_(9)(compound 1)and[DMMClEA]_(3)Sb_(2)Br_(9)(compound 2)(DMMClEA=N-(chloromethyl)-N,N-dimethylethylammonium),in which the inorganic framework neatly arranges with[Bi_(2)Br_(9)]^(3−)/[Sb_(2)Br_(9)]^(3−)polyhedrons shared by face,forming an A_(3)B_(2)X_(9)-type *** compounds 1 and 2 possess two-step phase transitions,including a3mF2/m-type ferroelastic phase transition,based on the Aizu *** addition,dual dielectric switches endow the application toward sensor *** finding enriches A_(3)B_(2)X_(9)-type zero-dimensional hybrid ferroelastics and provides an approach to designing high-performance,lead-free perovskite semiconductors with dielectric functionality.

关键词： ferroelastic dielectric switch crystal structure phase transition

Tumor necrosis factor α deficiency promotes myogenesis and muscle regeneration

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Zoological Research 2024年第4期45卷 951-960页

作者： Yu fu Jing-Ru Nie Peng Shang Bo Zhang da-wei Yan Xin Hao Hao Zhang State Key Laboratory of Animal Biotech Breeding China Agricultural UniversityBeijing 100193China College of Animal Science Xizang Agricultural and Animal Husbandry UniversityLinzhiXizang 860000China College of Animal Science and Technology Yunnan Agricultural UniversityKunmingYunnan 650201China

Tumor necrosis factorα(TNFα)exhibits diverse biological functions;however,its regulatory roles in myogenesis are not fully *** the present study,we explored the function of TNFαin myoblast proliferation,differentiation,migration,and myotube fusion in primary myoblasts and C2C12 *** this end,we constructed TNFαmuscle-conditional knockout(TNFα-CKO)mice and compared them with flox mice to assess the effects of TNFαknockout on skeletal *** indicated that TNFα-CKO mice displayed phenotypes such as accelerated muscle development,enhanced regenerative capacity,and improved exercise endurance compared to flox mice,with no significant differences observed in major visceral organs or skeletal *** label-free proteomic analysis,we found that TNFα-CKO altered the distribution of several muscle development-related proteins,such as Hira,Casz1,Casp7,Arhgap10,Gas1,Diaph1,Map3k20,Cfl2,and Igf2,in the nucleus and *** set enrichment analysis(GSEA)further revealed that TNFαdeficiency resulted in positive enrichment in oxidative phosphorylation and MyoD targets and negative enrichment in JAK-STAT *** findings suggest that TNFα-CKO positively regulates muscle growth and development,possibly via these newly identified targets and pathways.

关键词： TNFα Muscle-conditional knockout Myogenesis Regeneration Muscle development

Nitric oxide assists nitrogen reduction reaction on 2D MBene: A theoretical study

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Chinese Chemical Letters 2024年第5期35卷 428-433页

作者： Chaozheng He Jia Wang Ling fu wei wei Henan Engineering Center of New Energy Battery Materials College of Chemistry and Chemical EngineeringShangqiu Normal UniversityShangqiu 476000China School of Chemistry and Chemical Engineering Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage&Novel Cell TechnologyLiaocheng UniversityLiaocheng 252059China Institute of Environment and Energy Catalysis Shaanxi Key Laboratory of Optoelectronic Functional Materials and DevicesSchool of Materials Science and Chemical EngineeringXi’an Technological UniversityXi’an 710021China College of Resources and Environmental Engineering Tianshui Normal UniversityTianshui 741001China

Electrocatalytic synthesis of ammonia as an environment-friendly and sustainable development method has received widespread attention in recent ***-dimensional(2D)materials are a promising catalyst for ammonia synthesis due to their large surface *** this work,we have constructed a series of 2D metal borides(MBenes)with transition metal(TM)defects(TMd-MBenes)and comprehensively calculated the reactivity of electrocatalytic synthesis of ammonia-based on density functional *** results have demonstrated that the TMd-MBenes can effectively activate nitrogen oxide(NO)and nitrogen(N2)molecules *** interesting,the co-chemisorption of O atoms,dissociated from NO,can facilitate the spilled of the inert N2 molecules into single N atoms,which can further hydrogenate into ammonia easily with an ultralow limiting potential of 0.59 V on *** research has not only provided clues for catalyst design for experimental study but also paved the way for the industrial application of electrocatalytic ammonia synthesis.

关键词： 2D mbenes Nitrogen electro-reduction DFT N_(2)activation Ammonia synthesis

Trace formula of the integro-differential operator on a quantum graph

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Applied Mathematics(A Journal of Chinese Universities) 2024年第2期39卷 311-318页

作者： wei Li-xiao YANG Chuan-fu School of Mathematics and Statistics Nanjing University of Science and TechnologyNanjing 210094China.

In this paper we study the eigenvalue problem for integro-differential operators on a lasso *** trace formula of the operator is established by applying the residual technique in complex analysis.

关键词： integro-differential operators eigenvalue trace formula