检索结果-南通市图书馆

同方期刊数据库

Sulfolane‑Based Flame‑Retardant Electrolyte for High‑Voltage Sodium‑Ion Batteries

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第2期17卷 498-516页

作者： Xuanlong He Jie Peng Qingyun Lin Meng Li Weibin Chen Pei Liu Tao Huang Zhencheng Huang Yuying Liu Jiaojiao Deng Shenghua Ye Xuming Yang Xiangzhong Ren Xiaoping Ouyang Jianhong Liu Biwei Xiao Jiangtao Hu Qianling Zhang Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China Center of Electron Microscopy State Key Laboratory of Silicon and Advanced Semiconductor MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China GRINM(Guangdong)Research Institute for Advanced Materials and technology FoshanGuangdong 528051People’s Republic of China college of Energy engineering Zhejiang UniversityHangzhouZhejiang 310027People’s Republic of China School of Materials Science and engineering Xiangtan UniversityXiangtan 411105People’s Republic of China shenzhen Eigen-Equation Graphene technology Co.Ltd Shenzhen 518000People’s Republic of China

Sodium-ion batteries hold great promise as next-generation energy storage ***,the high instability of the electrode/electrolyte interphase during cycling has seriously hindered the development of *** particular,an unstable cathode–electrolyte interphase(CEI)leads to successive electrolyte side reactions,transition metal leaching and rapid capacity decay,which tends to be exacerbated under high-voltage ***,constructing dense and stable CEIs are crucial for high-performance *** work reports localized high-concentration electrolyte by incorporating a highly oxidation-resistant sulfolane solvent with non-solvent diluent 1H,1H,5H-octafluoropentyl-1,1,2,2-tetrafluoroethyl ether,which exhibited excellent oxidative stability and was able to form thin,dense and homogeneous *** excellent CEI enabled the O3-type layered oxide cathode NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2)(NaNMF)to achieve stable cycling,with a capacity retention of 79.48%after 300 cycles at 1 C and 81.15%after 400 cycles at 2 C with a high charging voltage of 4.2 *** addition,its nonflammable nature enhances the safety of *** work provides a viable pathway for the application of sulfolane-based electrolytes on SIBs and the design of next-generation high-voltage electrolytes.

关键词： Sodium-ion batteries Sulfolane-based electrolyte High voltage Layered oxide cathode Flame retardant

Near-perfect replication on amorphous alloys through active force modulation based on machine learning/neural network parameter prediction

在线全文

学校读者我要写书评

暂无评论

Science China(physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 181-191页

作者： Senkuan Meng Zheng Wang Ruisong Zhu Ruijie Liu Jiang Ma Lina Hu Weihua Wang Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education) School of Materials Science and Engineering Shandong University college of Mechatronics and Control engineering Shenzhen University Songshan Lake Materials Laboratory Institute of physics Chinese Academy of Sciences

As a microforming technique, micro/nano-structural replication possesses advantages of high precision and efficiency. With the remarkable superplasticity in the supercooled liquid region, amorphous alloys or metallic glasses(MGs) are regarded as ideal materials for miniature fabrication. However, due to the intrinsic metastable nature of supercooled liquids, the design of imprinting processes for MGs poses a challenge. In the past, process parameters have largely relied on trial-and-error *** this work, a low-frequency active force modulation system is employed to apply a stable, precise, and real-time feedback stress field for imprinting of MG samples. Low-frequency vibrations can facilitate the filling of microstructures on the template surface by reducing the effective viscosity of the supercooled liquid. With the dataset composed of orthogonal experiments, a machine learning strategy based on back-propagation(BP) neural networks was utilized to construct a 3D parameter space for temperature, stress, and time, and to predict the corresponding filling ratio. Furthermore, the optimal combination of imprinting process parameters was identified, and its filling ratio was experimentally validated to reach as high as 0.94. The near-perfect replication of microstructures confirms the superiority of the active force modulation system and the data-driven strategy of machine learning-assisted parameter design. At the same time, this one-step microforming process provides a new approach to addressing the accuracy-cost trade-off dilemma in precision manufacturing.

关键词： metallic glass amorphous alloy microforming imprinting machine learning

An Efficient Boron Source Activation Strategy for the Low‑Temperature Synthesis of Boron Nitride Nanotubes

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 548-558页

作者： Ying Wang Kai Zhang Liping Ding Liyun Wu Songfeng E Qian He Nanyang Wang Hui Zuo Zhengyang Zhou Feng Ding Yue Hu Jin Zhang Yagang Yao National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional Materialsand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093People’s Republic of China School of Electronic Information and Artificial Intelligence Shaanxi University of Science&TechnologyXian 710000People’s Republic of China college of Bioresources Chemical and Materials engineering Shaanxi University of Science&TechnologyXian 710000People’s Republic of China Key Laboratory of Carbon Materials of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325000People’s Republic of China shenzhen Institutes of Advanced technology Chinese Academy of SciencesShenzhen 518000People’s Republic of China college of Chemical and Molecular engineering Peking UniversityBeijing 100871People’s Republic of China

Lowering the synthesis temperature of boron nitride nanotubes(BNNTs)is crucial for their *** primary reason for adopting a high temperature is to enable the effective activation of highmelting-point solid *** this study,we developed a novel approach for efficiently activating boron by introducing alkali metal compounds into the conventional MgO–B *** approach can be adopted to form various low-melting-point AM–Mg–B–O growth *** growth systems have improved catalytic capability and reactivity even under low-temperature conditions,facilitating the synthesis of BNNTs at temperatures as low as 850℃.In addition,molecular dynamics simulations based on density functional theory theoretically demonstrate that the systems maintain a liquid state at low temperatures and interact with N atoms to form BN *** findings offer novel insights into the design of boron activation and are expected to facilitate research on the low-temperature synthesis of BNNTs.

关键词： Boron nitride nanotubes Low-temperature Boron activation Density functional theory

Selective introduction of surface defects in anatase TiO2 nanosheets for highly efficient photocatalytic hydrogen generation

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2022年第6期41卷 2074-2083页

作者： Jiang-Yuan Qiu Hua-Zhang Feng Zhao-Hui Chen Shu-Hong Ruan Yan-Ping Chen Ting-Ting Xu Jing-Yun Su En-Na Ha Lu-Yang Wang college of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118China college of Health Scienceand Environmental engineering Shenzhen Technology UniversityShenzhen 518118China

Defect engineering greatly enhances the cat-alytic activity of transition metal semiconductor ***,localized surface defects engineering has been intensively researched,but it still remains challenges on how to tilt the balance to the controllable construction of surface defects rather than bulk ***,we report a facile room-temperature solution processing strategy on(001)facet exposed anatase TiO_(2) nanosheets(ATO),in which localized defects are generated on the surface selectivity with high *** achieve the aspect,lithium-ethylenediamine(Li-EDA)treatment is carried out on(001)facet exposed ATO under a mild *** optimized sample exhibits outstanding photocatalytic H_(2) production rates of 9.28 mmol·g^(-1)·h^(-1) with loading 0.5 wt%Pt as co-catalyst(AM 1.5),which is nearly 7.5 times higher than that of the pristine *** defect engi-neering strategy of ATO photocatalyst will spark the ideas for the defects engineering and semiconductor photocata-lyst,which is with important application prospect in solar energy conversion,including hydrogen generation and carbon dioxide reduction.

关键词： Defeet engineering Selective reaction Anatase titanium oxide Disorder structure Hydrogen generation

Alternative Strategy for Development of Dielectric Calcium Copper Titanate‑Based Electrolytes for Low‑Temperature Solid Oxide Fuel Cells

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 310-332页

作者： Sajid Rauf Muhammad Bilal Hanif Zuhra Tayyab Matej Veis MAKYousaf Shah Naveed Mushtaq Dmitry Medvedev Yibin Tian Chen Xia Martin Motola Bin Zhu college of Mechatronics and Control engineering Shenzhen UniversityShenzhen 518060People’s Republic of China Department of Inorganic Chemistry Faculty of Natural SciencesComenius University BratislavaIlkovicova684215 BratislavaSlovakia Energy Storage Joint Research Center School of Energy and EnvironmentSoutheast UniversityNanjing 210096People’s Republic of China Hydrogen Energy Laboratory Ural Federal University620002 EkaterinburgRussia Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes Institute of High Temperature Electrochemistry620066 EkaterinburgRussia School of Microelectronics Hubei UniversityWuhan 430062People’s Republic of China

The development of low-temperature solid oxide fuel cells(LT-SOFCs)is of significant importance for realizing the widespread application of *** has stimulated a substantial materials research effort in developing high oxide-ion conductivity in the electrolyte layer of *** this context,for the first time,a dielectric material,CaCu_(3)Ti_(4)O_(12)(CCTO)is designed for LT-SOFCs electrolyte application in this *** individual CCTO and its heterostructure materials with a p-type Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2−δ)(NCAL)semiconductor are evaluated as alternative electrolytes in LT-SOFC at 450–550℃.The single cell with the individual CCTO electrolyte exhibits a power output of approximately 263 mW cm^(-2) and an open-circuit voltage(OCV)of 0.95 V at 550℃,while the cell with the CCTO–NCAL heterostructure electrolyte capably delivers an improved power output of approximately 605 mW cm^(-2) along with a higher OCV over 1.0 V,which indicates the introduction of high hole-conducting NCAL into the CCTO could enhance the cell performance rather than inducing any potential short-circuiting *** is found that these promising outcomes are due to the interplay of the dielectric material,its structure,and overall properties that led to improve electrochemical mechanism in CCTO–***,density functional theory calculations provide the detailed information about the electronic and structural properties of the CCTO and NCAL and their heterostructure CCTO–*** study thus provides a new approach for developing new advanced electrolytes for LT-SOFCs.

关键词： LT-SOFCs Dielectric CaCu_(3)Ti_(4)O_(12) Semiconductor Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2−δ) Ionic conductivity Heterostructure electrolyte

Recent developments of infrared photodetectors with lowdimensional inorganic nanostructures

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第2期15卷 805-817页

作者： Xin Hu Jianghong Wu Mingzhou Wu Junqing Hu college of Health Science and Environmental engineering Shenzhen Technology UniversityShenzhen 518118China

Low-dimensional inorganic nanostructures such as quantum dots as well as one-and two-dimensional nanostructures are widely studied and already used in high-performance infrared *** structures feature large surface-to-volume ratios,tunable light absorption,and electron-limiting *** article reviews the state-of-the-art research of low-dimensional inorganic nanostructures and their application for infrared *** to nano-structuring,a narrow bandgap,hybrid systems,surface-plasmon resonance,and doping,many common semiconductors have the potential to be used for infrared *** basic approaches towards infrared detection are ***,a selection of very important and special nanostructured materials and their remarkable infrared-detection properties are introduced(e.g.,black phosphorus,graphene-based,MoX_(2)-based,Ⅲ-Ⅶ group).Each section in this review describes the corresponding photosensitive properties in *** article concludes with an outlook of anticipated future developments in the field.

关键词： infrared photodetectors low-dimensional inorganic nanostructures hybrid structures

A 61-mJ,1-kHz cryogenic Yb:YAG laser amplifier

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese physics B 2021年第12期30卷 437-440页

作者： Huijun He Jun Yu Wentao Zhu Qingdian Lin Xiaoyang Guo Cangtao Zhou Shuangchen Ruan shenzhen Key Laboratory of Ultraintense Laser and Advanced Material technology Center for Advanced Material Diagnostic Technologyand College of Engineering PhysicsShenzhen Technology University(SZTU)Shenzhen 518118China college of physics and Optoelectronic engineering Shenzhen UniversityShenzhen 518060China

We report a diode-pumped rod-type Yb:YAG laser amplifier operating at 1 *** cooling method was adopted to make the Yb:YAG crystal work with four-level behavior.A single-frequency fiber laser acts as the seed in an actively Q-switched Yb:YAG *** resonator delivers 5.75-mJ pulses at 1 kHz with a pulse duration of approximately 40 *** pulses were amplified to 61 mJ in a four-pass rod-type Yb:YAG amplifier with optical-to-optical efficiency of 24%in the main *** M^(2)parameter of the output laser is<1.4.

关键词： ytterbium laser system Yb:YAG laser amplifier cryogenic laser amplification high energy laser amplification

engineering DNA quadruplexes in DNA nanostructures for biosensor construction

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第4期15卷 3504-3513页

作者： Jingxin Liu Li Yan Shiliang He Junqing Hu college of Health Science and Environmental engineering Shenzhen Technology UniversityShenzhen 518118China shenzhen Bey Laboratory Shenzhen 518132China

DNA quadruplexes are nucleic acid conformations comprised of four *** are prevalent in human genomes and increasing efforts are being directed toward their *** advantage of the programmability of Watson-Crick base-pairing and conjugation methodology of DNA with other molecules,DNA nanostructures of increasing complexity and diversified geometries have been artificially constructed since *** this review,we investigate the interweaving of natural DNA quadruplexes and artificial DNA nanostructures in the development of the ever-prosperous field of biosensing,highlighting their specific roles in the construction of biosensor,including recognition probe,signal probe,signal amplifier and support *** implementation in various sensing scenes was *** finally,general conclusion and future perspective are discussed for further developments.

关键词： G-quadruplex i-motif DNA nanotechnology biosensor

Strong circularly polarized luminescence from quantum dots/2D chiral perovskites composites

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2023年第5期16卷 7593-7599页

作者： Qingqian Wang Hongmei Zhu Wei Chen Junjie Hao Zhaojin Wang Jun Tang Yingguo Yang Xiao Wei Sun Dan Wu Kai Wang Department of Electrical and Electronic engineering Southern University of Science and TechnologyShenzhen 518055China college of engineering physics Shenzhen Technology UniversityShenzhen 518118China college of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118China Shanghai Advanced Research Institute Chinese Academy of ScienceShanghai 201210China

Chiral perovskites(CPs)have attracted enormous attentions since they have combined chirality and optoelectrical properties well which is promising in circularly polarized luminescence(CPL)application and of great importance for future ***,there is a key contradiction that in chiral perovskites chirality distorts the crystal structure,leading to poor photoluminescence(PL)*** the balance between chirality and PL is a major challenge for strong CPL from chiral ***,two-dimensional(2D)chiral perovskite has shown fascinating chiral induced spin selectivity(CISS)effect which can act as spin injector under ambient ***,we propose an effective strategy to achieve high CPL activity generated from quantum dots(QDs)by introducing 2D chiral perovskite as a chiral source,providing spin polarized carriers through the CISS *** as-synthesized QDs/CP composites exhibit dissymmetry factors(glum)up to 9.06×10^(−3).For the first time,we performed grazing incident wide angle X-ray scattering(GIWAXS)measurements,showing the chirality originates from the distorted lattices caused by the large chiral organic ***,time-resolved PL(TR-PL)measurements verify the enhanced CPL activity should be attributed to the charge transport between two *** findings provide a useful method to achieve CPL in QDs/2D chiral perovskite heterojunctions which could be promising in spinoptoelectronics application.

关键词： circularly polarized luminescence colloidal quantum dots two-dimensional(2D)chiral perovskites grazing incident wide angle X-ray scattering(GIWAXS) chiral induced spin selectivity