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Unexpected Li displacement and suppressed phase transition enabling highly stabilized oxygen redox in P3-type Na layered oxide cathode

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Journal of Energy Chemistry 2023年第10期85卷 144-153,I0006页

作者： Myungeun Choi Hobin Ahn Hyunyoung Park Yongseok Lee Jinho Ahn Bonyoung Ku Junseong Kim Wonseok Ko Jungmin Kang Jung-Keun Yoo Duho Kim Jongsoon Kim Department of Energy Science Sungkyunkwan UniversitySuwon 16419Republic of Korea SKKU Institute of Energy Science and Technology(SIEST) Sungkyunkwan UniversitySuwon 16419Republic of Korea Carbon Composites Department Korea Institute of Materials Science(KIMS)Changwon 51508Republic of Korea Department of Mechanical Engineering(Integrated Engineering Program) Kyung Hee University1732Deogyeong-daeroGiheung-guYongin-siGyeonggi-do 17104Republic of Korea Department of KHU-KIST Convergence Science and Technology Kyung Hee University23Kyunghee-daero Dongdaemun-guSeoul 02447Republic of Korea

Oxygen redox is considered a new paradigm for increasing the practical capacity and energy density of the layered oxide cathodes for Na-ion batteries. However, severe local structural changes and phase transitions during anionic redox reactions lead to poor electrochemical performance with sluggish ***, we propose a synergy of Li-Cu cations in harnessing the full potential of oxygen redox, through Li displacement and suppressed phase transition in P3-type layered oxide cathode. P3-type Na_(0.7)[Li_(0.1)Cu_(0.2)Mn_(0.7)]O_(2) cathode delivers a large specific capacity of ~212 mA h g^(-1)at 15 mA g^(-1). The discharge capacity is maintained up to ~90% of the initial capacity after 100 cycles, with stable occurrence of the oxygen redox in the high-voltage region. Through advanced experimental analyses and first-principles calculations, it is confirmed that a stepwise redox reaction based on Cu and O ions occurs for the charge-compensation mechanism upon charging. Based on a concrete understanding of the reaction mechanism, the Li displacement by the synergy of Li-Cu cations plays a crucial role in suppressing the structural change of the P3-type layered material under the oxygen redox reaction, and it is expected to be an effective strategy for stabilizing the oxygen redox in the layered oxides of Na-ion batteries.

关键词： Layered oxide cathode Oxygen redox reaction Structural stability Li displacement No phase transition

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All dielectric compact broadband silicon waveguide mode converters

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Optical and Quantum Electronics 2024年第12期56卷 1-21页

作者： Hassan, Samar Hassan A. Hameed, Mohamed Farhat O. Mahmoud, Korany R. Wageeh, Amr Obayya, S.S.A. Electronics and Communications Engineering Department Faculty of Engineering Helwan University Cairo Egypt Centre for Nanotechnology Zewail City of Science Technology and Innovation October Gardens 6Th of October City Giza12578 Egypt Nanotechnology and Nanoelectronics Engineering Program Zewail City of Science Technology and Innovation October Gardens 6Th of October City Giza12578 Egypt Mathematics and Engineering Physics Department Faculty of Engineering University of Mansoura Mansoura35516 Egypt Cairo Egypt Giza Egypt Centre for Photonics and Smart Materials Zewail City of Science Technology and Innovation October Gardens 6Th of October City Giza12578 Egypt Department of Electronics and Communications Engineering Faculty of Engineering University of Mansoura Mansoura35516 Egypt

Compact mode order converters (MOCs) operating at the mid-infrared regime are reported using silicon-on-calcium fluoride platform. The suggested designs convert the fundamental transverse electric (TE) mode to first and second order TE modes with total device lengths of only 5.89 μm and 5 μm, respectively, at λ = 3.14 µm. The full vectorial 3D finite-deference time-domain is utilized to analyze the TE0 → TE1 and TE0→TE2 MOCs. The proposed designs depend on using dielectric material of Si3N4 inside the Si core region to improve and facilitate the mode conversion process. The conversion efficiencies (inter-modal crosstalks [CTs]) are equal to 93.4% (− 19.2 dB), and 90% (− 17 dB) for TE0: TE1 and TE0:TE2 MOCs, respectively. Moreover, the reported designs have a wide wavelength range of 300 nm, where the conversion-efficiency (CE) and maximum CT are > 86% and 0: TE1 and TE0: TE2 MOCs, respectively, at λ = 1.55 µm. © The Author(s), under exclusive licence to Springer science+Business Media, LLC, part of Springer Nature 2024.

关键词： Silicon photonics

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3D-Printed MOF Monoliths:Fabrication Strategies and Environmental Applications

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Nano-Micro Letters 2024年第12期16卷 358-405页

作者： Hossein Molavi Kamyar Mirzaei Mahdi Barjasteh Seyed Yahya Rahnamaee Somayeh Saeedi Aliakbar Hassanpouryouzband Mashallah Rezakazemi Department of Chemistry Institute for Advanced Studies in Basic Science(IASBS)Zanjan 45137-66731Iran Department of Chemical and Biological Engineering University at BuffaloThe State University of New YorkBuffaloNY 14260USA Center for Nano-Science and Nanotechnology Institute for Convergence Science&TechnologySharif University of TechnologyTehran 15614Iran Department of Biomedical Engineering Amirkabir University of Technology(Tehran Polytechnic)Hafez Ave.P.O.Box 15875-4413TehranIran Grant Institute School of GeosciencesUniversity of EdinburghWest Main RoadEdinburgh EH93FEUK Faculty of Chemical and Materials Engineering Shahrood University of TechnologyShahroodP.O.Box ***Iran

Metal-organic frameworks(MOFs)have been extensively considered as one of the most promising types of porous and crystalline organic-inorganic materials,thanks to their large specific surface area,high porosity,tailorable structures and compositions,diverse functionalities,and well-controlled pore/size ***,most developed MOFs are in powder forms,which still have some technical challenges,including abrasion,dustiness,low packing densities,clogging,mass/heat transfer limitation,environmental pollution,and mechanical instability during the packing process,that restrict their applicability in industrial ***,in recent years,attention has focused on techniques to convert MOF powders into macroscopic materials like beads,membranes,monoliths,gel/sponges,and nanofibers to overcome these ***-dimensional(3D)printing technology has achieved much interest because it can produce many high-resolution macroscopic frameworks with complex shapes and geometries from digital ***,this review summarizes the combination of different 3D printing strategies with MOFs and MOF-based materials for fabricating 3D-printed MOF monoliths and their environmental applications,emphasizing water treatment and gas adsorption/separation ***,the various strategies for the fabrication of 3D-printed MOF monoliths,such as direct ink writing,seed-assisted in-situ growth,coordination replication from solid precursors,matrix incorporation,selective laser sintering,and digital light processing,are described with the relevant ***,future directions and challenges of 3D-printed MOF monoliths are also presented to better plan future trajectories in the shaping of MOF materials with improved control over the structure,composition,and textural properties of 3D-printed MOF monoliths.

关键词： MOFs 3D-printing Environmental remediation Shaping Monoliths

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Two-dimensional CuO nanosheets-induced MOF composites and derivatives for dendrite-free zinc-ion batteries

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纳米研究（英文版） 2023年第5期16卷 6881-6889页

作者： Guoqiang Yuan Yang-Yi Liu Jun Xia Yichun Su Wenxian Wei YinBo Zhu Yang An HengAn Wu Qiang Xu Huan Pang School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China School of Electrical Engineering Engineering Technology Research Center of Optoelectronic Technology ApplianceTongling UniversityTangling 244061China CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern MechanicsCAS Center for Excellence in Complex System MechanicsUniversity of Science and Technology of ChinaHefei 230027China Department of Materials Science and Engineering SUSTech Academy for Advanced Interdisciplinary StudiesSouthern University of Science and TechnologyShenzhen 518055China

Uncontrollable dendrite growth and side reactions resulting in short operating life and low Coulombic efficiency have severely hindered the further development of aqueous zinc-ion batteries(AZIBs).In this work,we designed to grow zeolitic imidazolate framework-8(ZIF-8)uniformly on CuO nanosheets(NSs)and prepared carbon-coated CuZn alloy NSs(CuZn@C NSs)by calcination under H2/Ar *** reflected by extended X-ray absorption fine structure(EXAFS),density functional theory(DFT),and in-situ Raman,the Cu-Zn and Zn-N bonds present in CuZn@C NSs act as zincophilic sites to uniformly absorb Zn ions and inhibit the formation of Zn *** the same time,CuZn@C NSs hinder the direct contact between zinc anode and electrolyte,preventing the occurrence of side *** impressively,the symmetric cells constructed with CuZn@C NSs anodes exhibited excellent zinc plating/exfoliation performance and long life cycle at different current densities with low voltage *** addition,low polarization,high capacity retention,and long cycle life over 1000 cycles at 5 A·g-1 were achieved when CuZn@C NSs were used as anodes for CuZn@C/V2O5 full cells.

关键词： carbon-coated CuZn alloy nanosheets dendrite-free metal-organic frameworks (MOFs)-based composites two-dimensional CuO nanosheet zinc-ion battery

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Initial Exploration and Understanding of Parameters for Successful Enterprise Architecture Implementation 11

Initial Exploration and Understanding of Parameters for Succ...

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11th International Conference on ICT for Smart Society, ICISS 2024

作者： Khairina, Dyna Marisa Purwanto, Purwanto Nugraheni, Dinar Mutiara Kusumo School of Postgraduate Studies Universitas Diponegoro Program in Information Systems Semarang Indonesia Universitas Diponegoro Faculty of Engineering Department of Chemical Engineering Semarang Indonesia Universitas Diponegoro Faculty of Science and Mathematics Department of Informatics Semarang Indonesia

ISBN: (纸本)9798350389654

This study provides an initial exploration and further understanding of the factors that are parameters in evaluating the success of Enterprise Architecture (EA) implementation. An evaluation process is needed to ensure that the EA project implementation provides effectiveness, efficiency, and feasibility of the EA information system as well as assessing previous project experience to avoid future EA project risks. The research aims to present a Systematic Literature Review based on the stages of identification, screening, eligibility, and inclusion so that 14 main articles are selected for review with strong actual relevance. The study results provide insights and references that can be used to further explore key factors in evaluating the success of EA implementation in the future. It was found that there were ten factors that most influenced the evaluation of the success of EA implementation and it was concluded that two potential factors were the most influential and required further exploration in evaluating the success of EA implementation which could be applied in various sectors/dimensions. This study contributes as an initial reference for overcoming problems in investigating and exploring the factors that influence the success of EA implementation as an effort to assess the success of achieving future organizational goals. © 2024 IEEE.

关键词： Enterprise Architecture Parameters Success Factors Systematic Literature Review

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Synthesis of coral-like structures of Pr-Yb co-doped YIG: Structural,optical, magnetic and antimicrobial properties

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Journal of Rare Earths 2024年第3期42卷 543-554,I0004页

作者： A.Fernandez Francisca P.Araujo Y.Guerra S.Castro-Lopes J.Matilla-Arias Idglan S.de Lima Edson C.Silva-Filho Josy A.Osajima F.Guerrero R.Pena-Garcia Federal University of Piau Graduate Program in Materials Science and EngineeringTeresinaPIBrazil Federal Rural University of Pernambuco Academic Unit of Cabo de Santo AgostinhoCabo de Santo AgostinhoPEBrazil Federal University of Piaui Department of PhysicTeresinaPBrazil Federal University of Pernambuco Graduate Program in Materials ScienceRecifePEBrazil University of Granma Departmentof Basic Sciences and Applied InformaticsFaculty of Technical SciencesBayamoCuba Federal University of Amazonas Department of PhysicManausAMBrazil Federal University of Pernambuco Department of PhysicRecifePEBrazil

Coral-like structures of the Y_(3-x)Pr_(x)Fe_(5-y)Yb_(y)O_(12),(0.00 ≤ x ≤ 0.04, 0.00 ≤ y ≤ 0.02) compound were synthesized using the sol-gel method. Structural investigation certified the YIG cubic crystal structure formation, without any secondary phase. It is shown that, the relatively large ionic radius of the dopant cations results in an expansion of the lattice parameter, variations in the Iona-O-Iondangle, Iona-O,Iond-O and Ionc-O bond distances and decrease in the average crystallite size. Fourier transform infrared(FTIR) and Raman measurements are essential to testify the single-phase formation of YIG crystal structure and are observed changes in the stretching and vibrational modes, respectively. The morphological study, energy dispersive spectroscopy(EDS) spectra and textural properties show corallike structures, peaks associated with Pr^(3+) and Yb^(3+) atoms and the effect of dopants on surface area,diameter, and pore volume, respectively. The optical analysis from diffuse reflectance spectra witnessed an increase in the optical gap band, a decrease in Urbach energy and blue shift in the charge transfer,correlated with the expansion of the unit cell due to the dopant's insertion in the YIG structure. A typical ferrimagnetic behavior is exhibited by the Y_(3-x)Pr_(x)Fe_(5-y)Yb_(y)O_(12)compound. The saturation magnetization(M_(s)), cubic anisotropy constant(K_(1)) and coercive field(H_(c)) increase with the Pr^(3+)cations content, as consequence of their magnetic nature and distribution around of Fe^(3+)ions due to the coexistence with the Yb^(3+). Finally, for the first time, antibacterial tests by mean of the direct contact method were performed for YIG co-doped with Pr^(3+)and Yb^(3+)and it is shown that, relatively high dosages of Pr^(3+) cations favored the activity against S. aureus, therefore, a new biological property for YIG doped with rare earths is presented.

关键词： Yttrium iron garnet(YIG) Coral-like structures Rare earths Band gap energy Magnetic properties Antimicrobial properties

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Liquid metal compartmented by polyphenol-mediated nanointerfaces enables high-performance thermal management on electronic devices

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InfoMat 2024年第1期6卷 83-95页

作者： Chaojun Zhang Yang Tang Tianyu Guo Yizhou Sang Ding Li Xiaoling Wang Orlando J.Rojas Junling Guo BMI Center for Biomass Materials and Nanointerfaces College of Biomass Science and EngineeringSichuan UniversityChengduSichuanthe People's Republic of China Bioproducts Institute Departments of Chemical and Biological EngineeringThe University of British ColumbiaVancouverBritish ColumbiaCanada Institute of Development Studies Southwestern University of Finance and EconomicsChengduSichuanthe People's Republic of China National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan UniversityChengduSichuanthe People's Republic of China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengduSichuanthe People's Republic of China

The exponentially increasing heat generation in electronic devices,induced by high power density and miniaturization,has become a dominant issue that affects carbon footprint,cost,performance,reliability,and *** metals(LMs)with high thermal conductivity are promising candidates for effective thermal management yet are facing pump-out and surface-spreading *** in the form of metallic particles can address these problems,but apparent alloying processes elevate the LM melting point,leading to severely deteriorated ***,we propose a facile and sustainable approach to address these challenges by using a biogenic supramolecular network as an effective diffusion barrier at copper particle-LM(EGaIn/Cu@TA)interfaces to achieve superior thermal *** supramolecular network promotes LM stability by reducing unfavorable alloying and fluidity *** EGaIn/Cu@TA exhibits a record-high metallic-mediated thermal conductivity(66.1 W m^(-1) K^(-1))and fluidic ***,mechanistic studies suggest the enhanced heat flow path after the incorporation of copper particles,generating heat dissipation suitable for computer central processing units,exceeding that of commercial *** results highlight the prospects of renewable macromolecules isolated from biomass for the rational design of nanointerfaces based on metallic particles and LM,paving a new and sustainable avenue for high-performance thermal management.

关键词： Electronic devices High thermal conductivity Liquid metals Natural polyphenols Thermal management

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Surface modification techniques of membranes to improve their antifouling characteristics:recent advancements and developments

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Frontiers of Chemical science and engineering 2023年第12期17卷 1837-1865页

作者： Muhammad Tawalbeh Haya Aljaghoub Muhammad Qasim Amani Al-Othman Sustainable and Renewable Energy Engineering Department University of SharjahSharjah 27272United Arab Emirates Sustainable Energy&Power Systems Research Centre RISEUniversity of SharjahSharjah 27272United Arab Emirates Industrial Engineering and Engineering Management Department University of SharjahSharjah 27272United Arab Emirates Department of Chemical and Biological Engineering American University of SharjahSharjah 26666United Arab Emirates Materials Science and Engineering Program College of Arts and SciencesAmerican University of SharjahSharjah 26666United Arab Emirates

Extensive research efforts are currently devoted to developing and improving conventional technologies for water treatment. Membrane-based water treatment technologies are among the most preferred options due to their commercial success, simple operation, low energy and space requirements, and high separation efficiency. Despite the advances made in membrane-based technologies, fouling remains a critical challenge. Fouling occurs upon the accumulation of unwanted impurities on the membrane surface and within the membrane pores which results in a significant decline in the membrane permeate flux. To alleviate the operational challenges from fouling, surface modification to develop antifouling membranes appears to be an effective technique. A comprehensive review of the surface modification techniques for the development of antifouling membranes is provided in this paper. Chemical surface modification techniques (grafting and plasma treatment), physical modification techniques (blending, coating, adsorption, and thermal treatment), and combined physical and chemical modification techniques have been discussed. Moreover, the challenges related to surface modification and the future research directions are addressed.

关键词： fouling antifouling membrane surface modification membrane pretreatment

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Nonlinear asymmetric thermomechanical buckling of shallow nanoscale arches having dissimilar end conditions embracing nonlocality and strain gradient size dependencies

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Defence Technology(防务技术) 2025年第5期47卷 67-82页

作者： Saeid Sahmani Kamila Kotrasova Mona Zareichian Jian Sun Babak Safaei Department of Civil Engineering School of Science and TechnologyThe University of GeorgiaTbilisi 0171Georgia Center for Advanced Materials and Structures School of Science and TechnologyThe University of GeorgiaTbilisi 0171Georgia Department of Mechanical Engineering College of Engineering145 Anam-roSeongbuk-guSeoul 02841Republic of Korea Department of Structural Mechanics Institute of Structural Engineering and Transportation StructuresFaculty of Civil EngineeringTechnical University of KosiceVysokoskolska 4Kosice 04200Slovakia Yangzhou Polytechnic Institute Yangzhou 225127JiangsuChina Department of Mechanical Engineering Eastern Mediterranean UniversityFamagustaNorth Cyprus via Mersin 10Turkey UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology College of Graduate StudiesUniversity of South AfricaMuckleneuk RidgePO Box 392PretoriaSouth Africa

The undercurrent research survey explores the roles of nonlocality and strain gradient size dependencies in nonlinear asymmetric buckling of shallow nanoscale arches having dissimilar end conditions through a numerical *** arches,made from a functionally graded graphene nanofiller reinforced composite(FG-GNRC),are subjected to discretional radial concentrated loads along with converting of *** account for the size dependencies,the exploration is carried out stemming from the nonlocal strain gradient theory(NSGT)in the sense of a quasi-2D parabolic shear flexible concept of curved *** material properties of the contemplated FG-GNRC sandwich are determined using the modified Halpin-Tsai micromechanics ***,an extended isogeometric analysis(XIGA)is manipulated comprising insertion plus multiplication of knots to achieve the demanded lower continuity allocated to the integration between flexural and tangential *** is perceived that the both softening and stiffening concomitants assigned to the salient concentrated radial loads obtained by the developed NSGT-based XIGA diminish from the first upper limit to the second one,and then likewise from the first lower limit to the second ***,by becoming the upsurge in temperature higher,these softening and stiffening concomitants get more remarkable.

关键词： Nanotechnology Size-dependent mechanical responses Sandwich composites Extended isogeometric analysis Curved beams

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Effect of Yttrium Treatment on Germanium-Oxide-Based Interfacial Layer of Ge P-Channel Metal–Oxide–Semiconductor Field-Effect Transistor Fabricated Through In Situ Plasma-Enhanced Atomic Layer Deposition

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IEEE Transactions on Electron Devices 2024年第3期71卷 1-6页

作者： Li, Hui-Hsuan Lin, Kuan-Yu Tsai, Yi-He Lin, Yu-Hsien Chien, Chao-Hsin Institute of Electronics National Yang Ming Chiao Tung University Hsinchu Taiwan Graduate Program for Nanotechnology Department of Materials Science and Engineering National Yang Ming Chiao Tung University Hsinchu Taiwan Department of Electronic Engineering National United University Miaoli Taiwan

This study investigated the effect of yttrium (Y) treatment on a germanium (Ge)-oxide-based interfacial layer (IL) through in situ plasma-enhanced atomic layer deposition (PEALD). Time-of-flight secondary-ion mass spectrometry revealed that the surface reaction and deposition could be successfully performed with a Y precursor, and X-ray photoelectron spectroscopy (XPS) revealed that Y treatment on an IL can suppress GeO

$_{\text{x}}$

volatilization. A metal–oxide–semiconductor capacitor gate-stack with a Y-GeO

$_{\text{x}}$

IL has a low leakage current density (2.1

$\times$

$^{-\text{5}}$

A/cm

$^{\text{2}}$

) and a low interface trap density (approximately 5.5

$\times$

$^{\text{11}}$

$^{-\text{1}}$

$^{-\text{2}}$

) under optimized temperatures. Moreover, the Ge P-channel metal–oxide–semiconductor field-effect transistor (P-MOSFET) containing a gate-stack with a Y-treated Ge-oxide-based IL exhibited a high I

$_{\biosc{on}}$

$_{\biosc{off}}$

ratio and low OFF-state current. Therefore, applying the proposed Y treatment on the IL of a Ge P-MOSFET can help achieve a subnanometer equivalent oxide thickness (EOT) and an

关键词： Ge-oxide-based germanium germanium oxide (GeOx) in situ interfacial layer (IL) plasma-enhanced atomic layer deposition (PEALD) Y-GeOx yttrium

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