检索结果-内蒙古大学图书馆

High Density 3D Carbon Tube Nanoarray Electrode Boosting the Capacitance of Filter Capacitor

Nano-Micro Letters 2024年第11期16卷 242-254页

作者： Gan Chen Fangming Han Huachun Ma Pei Li Ziyan Zhou Pengxiang Wang Xiaoyan Li Guowen Meng Bingqing Wei Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and NanotechnologyInstitute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031People’s Republic of China Department of Materials Science and Engineering University of Science and Technology of ChinaHefei 230026People’s Republic of China Department of Mechanical Engineering University of DelawareNewarkDE 19716USA Mechano‑X Institute Applied Mechanics LaboratoryDepartment of Engineering MechanicsTsinghua UniversityBeijing 100084People’s Republic of China

Electric double-layer capacitors(EDLCs)with fast frequency response are regarded as small-scale alternatives to the commercial bulky aluminum electrolytic *** carbon-based nanoarray electrodes with precise alignment and smooth ion channels is crucial for enhancing EDLCs’***,controlling the density of macropore-dominated nanoarray electrodes poses challenges in boosting the capacitance of line-filtering ***,a simple technique to finely adjust the vertical-pore diameter and inter-spacing in three-dimensional nanoporous anodic aluminum oxide(3D-AAO)template is achieved,and 3D compactly arranged carbon tube(3D-CACT)nanoarrays are created as electrodes for symmetrical EDLCs using nanoporous 3D-AAO template-assisted chemical vapor deposition of *** 3D-CACT electrodes demonstrate a high surface area of 253.0 m^(2) g^(−1),a D/G band intensity ratio of 0.94,and a C/O atomic ratio of *** a result,the high-density 3D-CT nanoarray-based sandwich-type EDLCs demonstrate a record high specific areal capacitance of 3.23 mF cm^(-2) at 120 Hz and exceptional fast frequency response due to the vertically aligned and highly ordered nanoarray of closely packed CT *** 3D-CT nanoarray electrode-based EDLCs could serve as line filters in integrated circuits,aiding power system miniaturization.

关键词： Compactly arranged Three-dimensional carbon tube nanoarray Dimensional carbon tube nanoarray Fast frequency response Electric double-layer capacitors Layer capacitors AC line-filtering Filtering

来源：评论

学校读者我要写书评

暂无评论

Non-line-of-sight Full-Stokes Polarimetric Imaging with a Solution-processed Metagrating

Non-line-of-sight Full-Stokes Polarimetric Imaging with a So...

引用

2023 Conference on Lasers and Electro-Optics, CLEO 2023

作者： Weng, Xiaojing Arteaga, Oriol Feng, Ji Perry, Altai J. Vuong, Luat T. Department of Mechanical Engineering University of California at Riverside Riverside CADepartment of Applied Physics University of Barcelona Barcelona ES

The polarized diffraction from inexpensive, self-assembled conducting-polymer metagratings indicates nonlocal, spatially-varying birefringence. We demonstrate their application in a simple, single-shot, and low-cost n... 详细信息

ISBN: (纸本)9781957171258

关键词： Conducting polymers

来源：评论

学校读者我要写书评

暂无评论

Entropy-modulated and interlayer-doped transition metal layered oxides enable high-energy-density sodium-ion capacitors

引用

Nano Research 2024年第10期17卷 8785-8793页

作者： Tiansheng Wang Yadong Li Zhengyuan Chen Qingshan Liu Jian Lang Langyuan Wu Wendi Dong Zhengyu Ju Hongsen Li Xiaogang Zhang Guihua Yu College of Physics Qingdao UniversityQingdao 266071China Jiangsu Key Laboratory of Materials and Technologies for Energy Storage College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016China Materials Science and Engineering Program and Walker Department of Mechanical Engineering The University of Texas at AustinAustin 78712USA

In recent years,sodium-ion capacitors have attracted attention due to their cost-effectiveness,high power density and similar manufacturing process to lithium-ion ***,the utilization of oxide electrodes in traditional sodium-ion capacitors restricts their further advancement due to the inherent low operating voltage and electrolyte consumption based on their energy storage *** address these challenges,we incorporated Zn,Cu,Ti,and other elements into Na_(0.67)Ni_(0.33)Mn_(0.67)O_(2) to synthesize P2-type Na_(0.7)Ni_(0.28)Mn_(0.6)Zn_(0.05)Cu_(0.02)Ti_(0.05)O_(2) with a modulated entropy and pillaring *** the synergistic interplay between the interlayer pillar and the entropy modulation within the layers,the material exhibits exceptional toughness,effectively shielding it from detrimental phase transitions at elevated voltage *** a result,the material showcases outstanding kinetic properties and long-term cycling stability across the voltage *** integrating these materials with hierarchical porous carbon nanospheres to form a"rocking chair"sodium-ion capacitor,the hybrid full device delivers a high energy density(171 Wh·kg^(-1))and high power density(5245 W·kg^(-1)),as well as outstanding cycling stability(77% capacity retention after 3000 cycles).This work provides an effective material development route to realize simultaneously high energy and power for next-generation sodium-ion capacitors.

关键词： sodium-ion capacitors entropy modulation high power density long-term cycling layered oxide

来源：评论

学校读者我要写书评

暂无评论

Measurement of ionization produced by 254 eVnr nuclear recoils in germanium

引用

Physical Review D 2024年第8期110卷 083043页

作者： A. R. L. Kavner I. Jovanovic Applied Physics Program Department of Nuclear Engineering and Radiological Sciences

Ionization produced by low-energy nuclear recoils is among the primary direct signatures of dark matter interactions. Despite the urgency of dark matter detection and the recent measurements of coherent elastic neutrino-nucleus scattering, detector response to nuclear recoils is not well characterized in the keVnr and sub−keVnr regime across a variety of materials. We have reperformed a measurement of the ionization produced by monoenergetic 254 eVnr nuclear recoils in Ge with improved digital electronics and additional systematic studies. Our results indicate an ionization yield of 64±8 eVee corresponding to a quenching factor of 25%±3%, greater than the 14% predicted by the Lindhard model. This ionization enhancement could greatly improve the sensitivity of high-purity Ge detectors in dark matter detection and measurement of neutrinos via coherent scattering.

关键词： Dark matter Dark matter direct detection Energy levels Neutron physics Nuclear astrophysics Particle dark matter

来源：评论

学校读者我要写书评

暂无评论

Simultaneous explanation of XTE J1814-338 and HESS J1731-347 objects using K− and K¯0 condensates

引用

Physical Review D 2025年第6期111卷 L061308-L061308页

作者： M. Veselský V. Petousis P. S. Koliogiannis Ch. C. Moustakidis J. Leja Institute of Experimental and Applied Physics Czech Technical University Prague 110 00 Czechia Department of Physics Faculty of Science University of Zagreb Bijenička cesta 32 Zagreb 10000 Croatia Department of Theoretical Physics Aristotle University of Thessaloniki 54124 Thessaloniki Greece Faculty of Mechanical Engineering—Slovak University of Technology in Bratislava Bratislava 81231 Slovakia

The recent observation of the compact star XTE J1814-338 with a mass of M=1.2−0.05+0.05M⊙ and a radius of R=7−0.4+0.4 km, together with the HESS J1731-347, which has a mass of M=0.77−0.17+0.20M⊙ and a radius of R=10.4−0.78+0.86 km, shows they provide evidence for the possible presence of exotic matter in the core of neutron stars and significantly enhance our understanding of the equation of state for the dense nuclear matter. In the present study, we investigate the possible existence of negative charged kaons and neutral antikaons in neutron stars by employing the relativistic mean field model with first order kaonic (K− and K0¯) condensates. To the best of our knowledge, this represents a first alternative attempt aimed to explain the bulk properties of the XTE J1814-338 object and at the same time the HESS J1731-347 object, using a mixture of kaon condensation in dense nuclear matter. In addition, we compare our analysis approach with the recent observation of PSR J0437-4715 and PSR J1231-1411 pulsars, proposing that to simultaneously explain the current variety of astrophysical objects, it is essential to resurrect a scenario of two distinct branches, each corresponding to a different composition of nuclear matter.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Observation of an acoustic non-Hermitian topological Anderson insulator

引用

Science China(physics,Mechanics & Astronomy) 2023年第9期66卷 57-62页

作者： Zhongming Gu He Gao Haoran Xue Di Wang Jiamin Guo Zhongqing Su Baile Zhang Jie Zhu Institute of Acoustics School of Physics Science and EngineeringTongji UniversityShanghai 200092China Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological UniversitySingapore 637371Singapore Centre for Disruptive Photonic Technologies Nanyang Technological UniversitySingapore 637371Singapore

The interaction of band topology and disorder can give rise to intriguing *** paradigmatic example is the topological Anderson insulator,whose nontrivial topology is induced in a trivial system by *** this study,we investigate the efect of purely non-Hermitian disorders on topological systems using a one-dimensional acoustic lattice with coupled ***,we construct a theoretical framework to describe the non-Hermitian topological Anderson insulator phase solely driven by disordered loss ***,the complete evolution of non-Hermitian disorder-induced topological phase transitions,from an initial trivial phase to a topological Anderson phase and finally to a trivial Anderson phase,is revealed experimentally using both bulk and edge ***,topological modes induced by non-Hermitian disorders to be immune to both weak Hermitian and non-Hermitian *** findings pave the way for future research on disordered non-Hermitian systems for novel wave manipulation.

关键词： topological Anderson insulator non-Hermitian systems topological edge states

来源：评论

学校读者我要写书评

暂无评论

Effects of calendering state on coupled electrochemical-mechanical performance of silicon based composite electrodes

引用

Green Energy and Intelligent Transportation 2024年第5期3卷 34-41页

作者： Dawei Li Hongfei Wan Jiahui Liu Hainan Jiang Yikai Wang Junqian Zhang Yuejiu Zheng School of Mechanical Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Engineering Physics Tsinghua UniversityBeijing100084China Department of Chemical and Materials Engineering University of KentuckyLexingtonKY 40506USA Shanghai Institute of Applied Mathematics and Mechanics School of Mechanics and Engineering ScienceShanghai UniversityShanghai 200444China

The super volume changes and severe mechanical degradation have been a hindrance in the wide application of silicon based composite electrodes in commercial lithium-ion batteries(LIBs).Calendering,one procedure in producing LIBs'electrodes,is indispensable to ensure low porosity and energy ***,the repercussions of the calendering process on the physical characteristics related to the behavior of silicon(Si)based electrodes during the electrochemical reaction have not been well ***,on account of the deformation characteristic of cantilever electrodes,an in-situ technique is employed to analyze the repercussions of calendering status on the coupled electro-chemo-mechanical *** the electrochemical cycling,Young's modulus and diffusion-induced stress in composite electrodes are *** results show that the swelling strain,the stress and the modulus of the Si-based electrode and the calendering degree are positively ***,the stress induced by diffusion in the active layer tends to increase in the stage of lithiation and reverses during the delithiation *** with the SEM analysis,we conclude that the calendering process can induce larger stress,driving the formation of cracks in *** findings can help understand how the calendering process could affect the capacity dissipating and lifetime of Si based electrodes.

关键词： Calendering degree In situ measurement Coupled electro-mechan-chemical properties Si composite electrode Stress evolution

来源：评论

学校读者我要写书评

暂无评论

AllWeather-UsableWearable Dual Energy Harvester for Outdoor Sustainable Operation

引用

SusMat 2025年第1期5卷 159-170页

作者： Yeongju Jung Jiyong Ahn Ji-Seok Kim Junhyuk Bang Minwoo Kim Seongmin Jeong Jinwoo Lee Seonggeun Han Il-Kwon Oh Seung Hwan Ko Applied Nano and Thermal Science Lab Department of Mechanical EngineeringSeoul National UniversitySeoulRepublic of Korea National Creative Research Initiative for Functionally Antagonistic Nano-Engineering Department of Mechanical EngineeringSchool of Mechanical and Aerospace EngineeringKorea Advanced Institute of Science and Technology(KAIST)DaejeonRepublic of Korea Department of Mechanical Roboticsand Energy EngineeringDongguk UniversitySeoulRepublic of Korea Device Solutions Research Samsung ElectronicsHwaseong-siRepublic of Korea Institute of Engineering Research/Institute of Advanced Machinery and Design(SNU-IAMD) Seoul National UniversitySeoulRepublic of Korea Interdisciplinary Program in Bioengineering Seoul National UniversitySeoulRepublic of Korea

Sustainable power sources for outdoor wearable electronics are essential for the continuous operation of wearable ***,the current lack of engineering design that can harvest energy regardless of weather conditions presents a significant *** this regard,this study introduces a wearable,breathable all-weather usable dual energy harvester(AWuDEH)that can seamlessly generate electrical energy regardless of weather *** this study,the AWuDEH integrated with the thermoelectric generator and the droplet-based electricity generator is *** AWuDEH,especially engineered with a bi-functional top substrate for radiative cooling and electrification,achieves sustainable energy harvesting outdoors,thereby addressing the conventional challenge associated with the necessity for separate energy harvesters tailored to outdoor usage contingent on weather *** device reaches a maximum power output of 14.6μW cm^(-2)under simulated sunny conditions and generates a much more enhanced thermoelectric power of 74.78μW cm^(-2)and a droplet-based electric power of 256.25 mW m^(-2)in rainy *** proof,this study developed self-powered wearable electronics capable of acquiring physiological signals in simulated outdoor *** study presents a promising advancement in wearable technology,offering a potent solution for sustainable energy harvesting independent of weather conditions.

关键词： all-weather usable droplet-based electricity generator hybrid architecture outdoor sustainable operation thermoelectric generator

来源：评论

学校读者我要写书评

暂无评论

Efficiency of Eggshell Waste as a Metal Corrosion Inhibitor SS316L Based on Green Technology in Seawater Media 1

Efficiency of Eggshell Waste as a Metal Corrosion Inhibitor ...

引用

1st engineering and Science International Conference 2024, ESIC 2024

作者： Alfattah, M. Arwati, I.G.A. Arramel Afkauni, A.A. Yofatama, R.M. Mechanical Engineering Program Engineering Faculty Mercu Buana University Jakarta Indonesia Center of Excellence Applied Physics and Chemistry Nano Center Indonesia Tangerang Indonesia Main Secretariat National Research and Innovation Agency Tangerang Indonesia

Utilizing eco-friendly inhibitors offers an effective approach to combat pipe corrosion, as focus has increasingly turned towards options that are cost-effective, environmentally benign. The research investigates the application of waste from domestic chicken eggshells as a corrosion inhibitor. The objective of this study is to evaluate the effectiveness, morphology, and chemical properties of 316L stainless steel when treated with these eggshell-based inhibitors. The study employed several techniques, including EPD coating, potentiodynamic polarization, SEM, and Raman spectroscopy in seawater. The findings indicated that the lowest corrosion rate was observed in specimens treated with a 14g inhibitor concentration, with an average rate of 6.24883x10-4 mmpy with the efficiency 96.09%. Analysis SEM revealed that the sample without any inhibitors exhibited numerous small cavities on its surface. In contrast, the sample with a 14g inhibitor concentration showed a reduction in these cavities and a darker surface appearance due to the presence of a layer of adsorbed eggshell powder. Raman spectroscopy of the samples treated with 14 grams of eggshell powder, the final product of corrosion has disappeared, but there is still a α-FeOOH feature and its intensity is greatly reduced. drastic. This signifies that the use of an eggshell coating has effectively prevented corrosion. © 2025 Institute of physics Publishing. All rights reserved.

关键词： Seawater corrosion

来源：评论

学校读者我要写书评

暂无评论

Chiral phonon-induced magnetization in cerium fluorides

Chiral phonon-induced magnetization in cerium fluorides

引用

CLEO: Fundamental Science, CLEO:FS 2024 - Part of Conference on Lasers and Electro-Optics, CLEO 2024

作者： Luo, Jiaming Lin, Tong Zhang, Junjie Chen, Xiaotong Blackert, Elizabeth R. Xu, Rui Yakobson, Boris I. Zhu, Hanyu Department of Materials Science and Nano Engineering Rice University Houston United States Applied Physics Graduate Program Rice University Houston United States

We report that circularly polarized terahertz light pulses can drive chiral phonons, which then induce an effective quasi-static magnetic field on the order of 1 tesla to polarize the paramagnetic cerium fluoride. ... 详细信息

ISBN: (纸本)9781957171395

关键词： Phonons

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：