检索结果-内蒙古大学图书馆

Aggregate 2024年第2期5卷 1-16页

作者： Haixia Cui Wenjuan Zhu Yongjing Deng Tianxiang Jiang Aoxi Yu Huiyu Chen Shujuan Liu Qiang Zhao State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)and Institute of Flexible Electronics(Future Technology)Nanjing University of Posts and Telecommunications(NUPT)NanjingJiangsuP.R.China College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology) Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and DevicesNanjing University of Posts and Telecommunications(NUPT)NanjingJiangsuP.R.China

Scintillators,which can convert high-energy particles(X-rays)into detectable lowenergy ultraviolet-visible-near-infrared photons,are essential components of X-ray detectors and show extensive practical applications in nondestructive detection and medical ***,inorganic scintillators represented by CsI:Tl have achieved definite ***,the harsh preparation conditions,high production cost,and poor mechanical properties impede their potential development in the high-end X-ray imaging ***-inorganic hybrid metal complexes could be excellent alternatives,by virtue of their structural and spectral tunability,good solution processability,and excellent photophysical *** review mainly focuses on eco-friendly lead-free metal(Mn^(2+),Cu^(+),Sb^(3+),Sn^(2+),Ge^(2+),Ln^(3+),etc.)complex *** luminescence mechanisms are introduced and the scintillation performance,such as light yield,limit of detection,imaging resolution,etc.,is ***,the current challenges and perspectives in this emerging field are *** is hoped to provide some theoretical guidance for the continuous development of the new scintillator systems.

关键词： luminescence mechanisms organic-inorganic hybrid metal complexes scintillation performance scintillators X-ray detection and imaging

来源：评论

学校读者我要写书评

暂无评论

Synthetic Control of Thorium Metal-Organic Frameworks for Sequencing and Sensing of Radioiodine Species

引用

Chinese Journal of Chemistry 2024年第1期42卷 20-28,I0004页

作者： Yu Ju Zi-Jian Li xue Wang Jie Qiu Yiuhon Chan Zhi-Hui Zhang Mingyang He Jian Lin Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou UniversityNo.21Gehu Middle RoadChangzhouJiangsu 213164China Schoolof Nuclear Science and Technology Xi'an Jiaotong UniversityNo.28West Xianning RoadXianShaanxi 710049China Key Laboratoryof Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of Sciences2019JiaLuoRoadShanghai 201800China

Exploring the physiochemical properties and expanding the applications of actinide-containing materials is paramount to address the escalating challenge of radioactive waste ***,unlocking the full potential of these materials is largely crippled by the radiotoxicity of the *** report here two porous and luminescent thorium-based metal-organic frameworks(Th-BITD-1 and Th-BITD-2)that serve as a bifunctional platform for sequencing and sensing of radioiodine,a much more radioactive fission product discharged during the nuclear fuel *** particular,Th-BITD-1 displays better iodine uptake performance than Th-BITD-2 via the solution-based process and vapor diffusion with the maximum adsorption capacities of 831 and 1099 mg/g,*** thermore,Th-BITD-1 can function as a highly sensitive luminescence sensor for iodate with a quenching constant(Ksv)of 6.6(5)×10^(3) M^(-1)and a detection limit of 2.02μM,respectively,outperforming 2.96(6)×10^(3)M^(-1)and 10.5μM of ***,a positive correlation between the sensing efficacy and the iodate adsorption capacity has been *** work highlights the opportunity in designing novel actinide-based MOFs for their potential applications in radiological fields,e.g.,radionuclide separation and detection.

关键词： Thorium Metal-organic frameworks Adsorption Detection lodine Actinides Radiochemistry Luminescence

来源：评论

学校读者我要写书评

暂无评论

A magic organic molecule assembled capping layer enables airprocessed α-FAPbI_(3) perovskite solar cell with state-of-the-art performances

引用

Journal of Semiconductors 2024年第10期45卷 3-6页

作者： Yulong Wang Xiuwen Xu Shujuan Liu Qiang Zhao College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology) Nanjing University of Posts and TelecommunicationsNanjing 210023China State Key Laboratory of Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced MaterialsNanjing University of Posts and TelecommunicationsNanjing 210023China

The black-phase formamidine-lead iodide(α-FAPbI_(3)),boasting an optimal bandgap of 1.5 eV,stands out as a premier choice for narrow-bandgap perovskite solar cells(PSCs),achieving a certified power conversion efficiency(PCE)of 26.1%[1−5].This impressive performance hinges on the orderly and homogeneous crystallization ofα-phase pure FAPbI_(3),facilitated by coordinating solvents such as dimethyl sulfoxide(DMSO)to form intermediates like PbI_(2)-DMSO complex(D-complex).The D-complex plays a pivotal role in crystallization thermodynamics,enabling the direct formation of α-FAPbI_(3) without the photoinactiveδ-phase[6−9].However,DMSO,a commonly used coordinating solvent,is highly hygroscopic and prone to hydration upon moisture *** tendency leads to incomplete perovskite crystallization and accelerates the transformation of α-FAPbI_(3) into itsδ-phase[2,10].Consequently,the best-performing α-FAPbI_(3)PSCs must be processed in an inert atmosphere with strictly controlled relative humidity(RH)and suffers from relatively poor *** the hard-to-control atmosphere at industrial scale,it is challenging yet imperative to eliminate the negative effects stemming from hygroscopic coordinating solvents[11−13].

关键词： perovskite crystallization enable

来源：评论

学校读者我要写书评

暂无评论

Effects of highly dispersed Ni nanoparticles on the hydrogen storage performance of MgH_(2)

引用

International Journal of Minerals,Metallurgy and Materials 2023年第1期30卷 54-62页

作者： Nuo Xu Zirui Yuan Zhihong Ma Xinli Guo Yunfeng Zhu Yongjin Zou Yao Zhang School of Materials Science and Engineering Jiangsu Key Laboratory of Advanced Metallic MaterialsSoutheast UniversityNanjing 211189China School of Materials Science and Engineering Baise UniversityBaise 533000China College of Materials Science and Engineering Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function CompositesNanjing Tech UniversityNanjing 211816China Guangxi Key Laboratory of Information Materials Guilin University of Electronic TechnologyGuilin 541004China

MgH_(2)with a large hydrogen capacity is regarded as a promising hydrogen storage ***,it still suffers from high thermal stability and sluggish *** this paper,highly dispersed nano-Ni has been successfully prepared by using the polyol reduction method with an average size of 2.14 nm,which significantly improves the de/rehydrogenation properties of MgH_(2).The MgH_(2)–10wt%nano-Ni sample starts releasing H_(2)at 497 K,and roughly 6.2wt%H_(2)has been liberated at 583 *** rehydrogenation kinetics of the sample are also greatly improved,and the adsorption capacity reaches 5.3wt%H_(2)in 1000 s at 482 K and under 3 MPa hydrogen ***,the activation energies of de/rehydrogenation of the MgH_(2)–10wt%nano-Ni sample are reduced to(88±2)and(87±1)kJ·mol−1,*** addition,the thermal stability of the MgH_(2)–10wt%nano-Ni system is reduced by 5.5 kJ per mol H_(2)from that of pristine MgH_(2).This finding indicates that nano-Ni significantly improves both the thermodynamic and kinetic performances of the de/rehydrogenation of MgH_(2),serving as a bi-functional additive of both reagent and catalyst.

关键词： Ni nanoparticle kinetics thermodynamics MgH2 hydrogen storage performance

来源：评论

学校读者我要写书评

暂无评论

Lamellar water induced quantized interlayer spacing of nanochannels walls

引用

Green Energy & Environment 2024年第2期9卷 356-365页

作者： Yue Zhang Chenlu Wang Chunlei Wang Yingyan Zhang Junhua Zhao Ning Wei Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan UniversityWuxi214122China Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas Ministry of EducationNorthwest A&F UniversityYangling712100China Zhangjiang Lab Interdisplinary Research CenterShanghai Advanced Research InstituteChinese Academy of SciencesShanghai201210China Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai201800China Mechanical&Automotive Engineering School of EngineeringRMIT UniversityBundooraMelbourneVICVIC 3083Australia

The nanoscale confinement is of great important for the industrial applications of molecular sieve,desalination,and also essential in bio-logical transport *** efforts have been devoted to the influence of restricted spaces on the properties of confined ***,the situation of channel-wall is crucial but attracts less attention and remains *** fundamentally understand the mechanism of channel-walls in nanoconfinement,we investigated the interaction between the counter-force of the liquid and interlamellar spacing of nanochannel walls by considering the effect of both spatial confinement and surface *** results reveal that the nanochannel stables at only a few discrete spacing states when its confinement is within 1.4 *** quantized interlayer spacing is attributed to water molecules becoming laminated structures,and the stable states are corresponding to the monolayer,bilayer and trilayer water configurations,*** results can potentially help to understand the characterized interlayers spacing of graphene oxide membrane in *** findings are hold great promise in design of ion filtration membrane and artificial water/ion channels.

关键词： Nanoconfinement Quantized spacing Lamellar water layer MD simulations Entropy force

来源：评论

学校读者我要写书评

暂无评论

Alloy as advanced catalysts for electrocatalysis:From materials design to applications

引用

Chinese Chemical Letters 2024年第6期35卷 104-122页

作者： Pingfan Zhang Shihuan Hong Ning Song Zhonghui Han Fei Ge Gang Dai Hongjun Dong Chunmei Li Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu Province Institute of Green Chemistry and Chemical TechnologySchool of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China Daqo Group Co.Ltd. Zhenjiang 212221China Key Laboratory of Groundwater Resources and Environment Ministry of EducationJilin Provincial Key Laboratory of Water Resource and EnvironmentCollege of New Energy and EnvironmentJilin UniversityChangchun 130021China

With the deep integration of electrochemical research with energy,environment,catalysis,and other fields,more and more new electrochemical catalytic reactions have entered our research *** catalysts have recently emerged as a new type of nanomaterial due to the rapid development of kinetic controlled synthesis *** materials offer several advantages over monometallic catalysts,including larger element combinations,complex geometries,bifunctional sites,and reduced use of precious *** paper provides a review of alloy electrocatalysts that are designed and prepared specifically for electrocatalytic *** use of alloy materials in electrocatalyst design is also discussed,highlighting their widespread application in this ***,various synthesis methods and synthesis mechanisms are systematically *** that,by correlating the properties of materials with the structure,relevant strategies toward advanced alloy electrocatalysts including composition regulation,size,morphology,surface engineering,defect engineering,interface engineering and strain engineering are *** addition,the important electrocatalytic applications and mechanisms of alloy electrocatalysts are described and ***,the current challenges and prospects regarding the development of alloy nanomaterials are *** review serves as a springboard from a fundamental understanding of alloy structural dynamics to design and various applications of electrocatalysts,particularly in energy and environmental sustainability.

关键词： Alloy Nanomaterial Electrocatalyst Materials design Electrocatalysis

来源：评论

学校读者我要写书评

暂无评论

Thermochromic Smart Windows with Ultra-High Solar Modulation and Ultra-Fast Responsive Speed Based on Solid–Liquid Switchable Hydrogels

引用

Research 2024年第4期2024卷 2-13页

作者： Guangjun Zhu Gang Xu Yu Zhang Guo Lu Xuan Cai Wei Zhang Wei She Changwen Miao State Key Laboratory of High Performance Civil Engineering Materials Southeast UniversityNanjing 211189China School of Materials Science and Engineering Southeast UniversityNanjing 211189China Jiangsu Key Laboratory of Advanced Metallic Materials Southeast UniversityNanjing 211189China School of Civil Engineering and Architecture Shandong University of Science and TechnologyQingdao 266590China Wuhan National Laboratory for Optoelectronics School of Optical and Electronic InformationHuazhong University of Science and TechnologyWuhan 430074China

Thermo-responsive hydrogels can dynamically modulate incident light,providing a broad prospect for development of smart windows,which are of pivotal importance for energy conservation in ***,these hydrogels normally exhibit slow response speed and tend to contract over extended phase transition,compromising structural integrity of smart *** this study,a solid–liquid switchable thermochromic hydrogel,denoted as SL-PNIPAm,was synthesized by cross-linking PNIPAm with AMEO through dynamic imine *** to its distinctive solid–liquid transformation characteristics,SL-PNIPAm demonstrates rapid response time(within 5 s)and retains structural integrity without undergoing shrinkage during heating/cooling and freezing/thawing cycles.

关键词： bonds linking freezing

来源：评论

学校读者我要写书评

暂无评论

Configuration Synthesis and Lightweight Networking of Deployable Mechanism Based on a Novel Pyramid Module

引用

Chinese Journal of Mechanical Engineering 2023年第4期36卷 294-310页

作者： Jinwei Guo Jianliang He Guoxing Zhang Yongsheng Zhao Yundou Xu School of Mechanical Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China Parallel Robot and Mechatronic System Laboratory of Hebei Province Yanshan UniversityQinhuangdao 066004China Key Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of National Education Yanshan UniversityQinhuangdao 066004China

Deployable mechanism with preferable deployable performance,strong expansibility,and lightweight has attracted much attention because of their potential in aerospace.A basic deployable pyramid unit with good deployability and expandability is proposed to construct a sizeable deployable ***,the basic unit folding principle and expansion method is *** configuration synthesis method of adding constraint chains of spatial closed-loop mechanism is used to synthesize the basic ***,the degree of freedom of the basic unit is analyzed using the screw theory and the link dismantling ***,the three-dimensional models of the pyramid unit,expansion unit,and array unit are established,and the folding motion simulation analysis is carried *** on the number of components,weight reduction rate,and deployable rate,the performance characteristics of the three types of mechanisms are described in ***,prototypes of the pyramid unit,combination unit,and expansion unit are developed to verify further the correctness of the configuration synthesis based on the *** proposed deployable mechanism provides aference for the design and application of antennas with a large aperture,high deployable rate,and *** has a good application prospect in the aerospace field.

关键词： Pyramid unit Deployable mechanism Configuration synthesis Structural design Lightweight networking

来源：评论

学校读者我要写书评

暂无评论

Trajectory planning and base attitude restoration of dual-arm free-floating space robot by enhanced bidirectional approach

引用

Frontiers of Mechanical Engineering 2022年第1期17卷 2-17页

作者： Zongwu XIE Xiaoyu ZHAO Zainan JIANG Haitao YANG Chongyang LI State Key Laboratory of Robotics and System Harbin Institute of TechnologyHarbin 150001China Robotic System Department Jiangsu Jitri-Hust Intelligent Equipment TechnologyWuxi 214000China

When free-floating space robots perform space tasks,the satellite base attitude is disturbed by the dynamic *** disturbance of the base orientation may affect the communication between the space robot and the control center on *** this paper,the enhanced bidirectional approach is proposed to plan the manipulator trajectory and eliminate the final base attitude variation.A novel acceleration level state equation for the nonholonomic problem is proposed,and a new intermediate variable-based Lyapunov function is derived and solved for smooth joint trajectory and restorable base *** the method,the state equation is first proposed for dual-arm robots with and without end constraints,and the system stability is analyzed to obtain the system *** input modification further increases the system stability and simplifies the calculation *** are carried out in the end,and the proposed method is validated in minimizing final base attitude change and trajectory ***,the minute internal force during the coordinated operation and the considerable computing efficiency increases the feasibility of the method during space tasks.

关键词： free-floating space robot dual arm coordinated operation base attitude restoration bidirectional approach

来源：评论

学校读者我要写书评

暂无评论

Design and Experiment of A Hybrid Wave Energy Harvester Based on Tapered Rollers 21

Design and Experiment of A Hybrid Wave Energy Harvester Base...

引用

21st International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2022

作者： Li, Yunfei Tang, Tianyi Fang, Yan Huang, Manjuan Hou, Cheng Liu, Huicong Sun, Lining State Key Laboratory of Robotics and System Harbin150001 China Soochow University School of Mechanical and Electric Engineering Jiangsu Provincial Key Laboratory of Advanced Robotics China

ISBN: (纸本)9781665493062

This paper presents a hybrid energy harvester based on tapered rollers with an electromagnetic generator (EMG) component and a triboelectric nanogenerator (TENG) component for ultra-low frequency wave energy harvesting. The chaotic pendulum is adjusted to adapt the wave excitation under different sea conditions, ensuring that the device achieves optimal output performance. At excitation frequency of 1Hz and the tilt angle of 60°, the open-circuit voltage peaks of 8.4 and 132 V can be achieved by the EMG and TENG, respectively, corresponding to the power outputs of 4.38 and 0.078 mW, respectively. It was demonstrated that the device can easily light up over 360 red light-emitting diodes. © 2022 IEEE.

关键词： Wave energy conversion

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：