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Novel Optical materials and Applications, NOMA 2019

作者： Lin, Linhan Peng, Xiaolei Zheng, Yuebing Department of Mechanical Engineering University of Texas at Austin AustinTX78712 United States Materials Science and Engineering Program and Texas Materials Institute University of Texas at Austin AustinTX78712 United States

ISBN: (纸本)9781943580644

关键词： Beam scattering Electron beam lithography Fano resonance Laser beams Mie resonances Optical switching devices

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Novel Biosynthesis of Spherical Tungsten Trioxide Nanoparticles for Sustainable Photocatalytic Application

SSRN

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SSRN 2024年

作者： Parveen, Nazish Alnahdi, Kholoud M. Alsharif, Shada A. Ansari, Sajid Ali Ansari, Mohd Zahid Alam, Mir Waqas Umar, Ahmad Department of Chemistry College of Science King Faisal University P.O. Box 380 Hofuf Al-Ahsa31982 Saudi Arabia Department of Physics Faculty of Science University of Tabuk Tabuk71491 Saudi Arabia University College of Umlij University of Tabuk Tabuk Saudi Arabia Department of Physics College of Science King Faisal University P.O. Box 400 Hofuf Al-Ahsa31982 Saudi Arabia Chemical Engineering Program Texas A&M University System at Qatar P.O. Box 23874 Doha Qatar Najran University Najran11001 Saudi Arabia STEM Pioneers Training Lab Najran University Najran11001 Saudi Arabia Department of Materials Science and Engineering The Ohio State University ColumbusOH43210 United States

Abstract Spherical-shaped tungsten trioxide (SS-TTO) nanoparticles, notable for their high photocatalytic activity and noble metal-free composition, were developed using an innovative and eco-friendly biosynthesis method. This approach leverages orange juice as a cost-effective and abundant resource, diverging from traditional methods that often rely on costly chemicals. The newly synthesized SS-TTO nanoparticles underwent thorough examination through established spectroscopic and microscopic methods, demonstrating significantly improved photocatalytic performance under UV light exposure. These properties suggest that SS-TTO nanoparticles are a promising and sustainable option for various photocatalytic applications. © 2024, The Authors. All rights reserved.

关键词： Tungsten compounds

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Design and applications of lattice plasmon resonances

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Nano Research 2018年第9期11卷 4423-4440页

作者： Bharath Bangalore Rajeeva Linhan Lin Yuebing Zheng Materials Science and Engineering Program Department of Mechanical Engineering The University of Texas at Austin Austin Texas78712 USA

With their unique optical properties associated with the excitation of surface plasmons, metal nanoparticles （NPs） have been used in optical sensors and devices. The organization of these NPs into arrays can induce coupling effects to engineer new optical responses. In particular, lattice plasmon resonances （LPRs）, which arise from coherent interactions and coupling among NPs in periodic arrays, have shown great promise for realizing narrow linewidths, angle-dependent dispersions, and high wavelength tunability of optical spectra. By engineering the materials, shapes, sizes, and spatial arrangements of NPs within arrays, one can tune the LPR-based spectral responses and electromagnetic field distributions to deliver a multitude of improvements, including a high figure-of-merit, superior light-matter interaction, and multiband operation. In this review, we discuss recent progress in designing and applying new metal nanostructures for LPR-based applications. We conclude this review with our perspective on the future opportunities and challenges of LPR-based devices.

关键词： plasmonics,lattice plasmon resonance,nanoparticle array coupling,sensors

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Interdependence of Support Wettability - Electrodeposition Rate- Sodium Metal Anode and SEI Microstructure

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Angewandte Chemie 2024年第8期137卷

作者： Chang-An Lo Yixian Wang Varun R. Kankanallu Aditya Singla Dean Yen Xiaoyin Zheng Kaustubh G. Naik Bairav S. Vishnugopi Callum Campbell Vikalp Raj Chonghang Zhao Lu Ma Jianming Bai Feipeng Yang Ruipeng Li Mingyuan Ge John Watt Partha P. Mukherjee David Mitlin Yu-chen Karen Chen-Wiegart Department of Materials Science and Chemical Engineering Stony Brook University Stony Brook NY 11794 USA Materials Science and Engineering Program & Texas Materials Institute The University of Texas at Austin Austin TX 78712 USA School of Mechanical Engineering Purdue University West Lafayette IN 47907 USA National Synchrotron Light Source II Brookhaven National Laboratory Upton NY 11973 USA Center for Integrated Nanotechnologies Los Alamos National Laboratory Los Alamos NM 87545 USA

This study examines how current collector support chemistry (sodiophilic intermetallic Na 2 Te vs. sodiophobic baseline Cu) and electrodeposition rate affect microstructure of sodium metal and its solid electrolyte interphase (SEI). Capacity and current (6 mAh cm −2 , 0.5–3 mA cm −2 ) representative of commercially relevant mass loading in anode-free sodium metal battery (AF-SMBs) are analyzed. Synchrotron X-ray nanotomography and grazing-incidence wide-angle X-ray scattering (GIWAXS) are combined with cryogenic ion beam (cryo-FIB) microscopy. Highlighted are major differences in film morphology, internal porosity, and crystallographic preferred orientation e.g. (110) vs. (100) and (211) with support and deposition rate. Within the SEI, sodium fluoride (NaF) is more prevalent with Te−Cu versus sodium hydride (NaH) and sodium hydroxide (NaOH) with baseline Cu. Due to competitive grain growth the preferred orientation of sodium crystallites depends on film thickness. Mesoscale modeling delineates the role of SEI (ionic conductivity, morphology) on electrodeposit growth and onset of electrochemical instability.

关键词： sodium metal battery sodium metal anode solid electrolyte interphase (SEI) fiber texture film growth

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Pulverizing Fe₂O₃ Nanoparticles for Developing Fe₃C/N-Codoped Carbon Nanoboxes with Multiple Polysulfide Anchoring and Converting Activity in Li-S Batteries

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Advanced Functional materials 2021年第18期31卷 2011249-2011249页

作者： Zhou, Changyu Li, Xiangcun Jiang, Helong Ding, Yu He, Gaohong Guo, Jiao Chu, Zhong Yu, Guihua State Key Laboratory of Fine Chemicals Chemical Engineering Department Dalian University of Technology Dalian 116024 China Materials Science and Engineering Program and Department of Mechanical Engineering The University of Texas at Austin Austin 78712 TX United States

Sluggish redox kinetics, shuttle effect, poor conductivity, and large volume change of sulfur limit the practical applications of lithium-sulfur batteries. Hollow, porous, and necklace-like Fe₃C/N-codoped carbon nanoboxes (Fe₃C/NC) connected by N-doped carbon (NC) nanofibers are designed by pulverizing Fe₂O₃ embedded in polyacrylonitrile (PAN) fibers to produce multifunctional sulfur hosts, which exhibit multiple polysulfide anchoring and catalytic conversion activities. Experimental and first-principles density functional theory studies reveal that the uniformly distributed Fe₃C and N units in the nanoboxes can significantly suppress the polysulfide shuttle effect. The conversion of polysulfides (LiPSs) to Li₂S is catalyzed during discharge. The process relies on the fast electron transfer through the NC nanofibers and facilitated Li⁺ diffusion through the porous nanobox shells. The structural characteristics (“boxes in fibers”) of the nanoboxes influence the high sulfur loading and tolerance of volume variation of LiPSs, resulting in the synergistic catalysis of the redox reactions. A high capacity of 645 mAh g⁻¹ after 240 cycles at 1 C, a high capacity of 712 mAh g⁻¹ at a high sulfur loading of 5 mg cm⁻² after 100 cycles at 0.2 C, and an enhanced areal capacity of 3.6 mAh cm⁻² are demonstrated. © 2021 Wiley-VCH GmbH.

关键词： Fe 3C fibers Li-S batteries membranes nanoboxes

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aflow++: a C++ framework for autonomous materials design

arXiv

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arXiv 2022年

作者： Oses, Corey Esters, Marco Hicks, David Divilov, Simon Eckert, Hagen Friedrich, Rico Mehl, Michael J. Smolyanyuk, Andriy Campilongo, Xiomara van de Walle, Axel Schroers, Jan Kusne, A. Gilad Takeuchi, Ichiro Zurek, Eva Nardelli, Marco Buongiorno Fornari, Marco Lederer, Yoav Levy, Ohad Toher, Cormac Curtarolo, Stefano Department of Mechanical Engineering and Materials Science Duke University DurhamNC27708 United States Center for Autonomous Materials Design Duke University DurhamNC27708 United States LIFT American Lightweight Materials Manufacturing Innovation Institute DetroitMI48216 United States Institute of Ion Beam Physics and Materials Research Helmholtz-Zentrum Dresden-Rossendorf Dresden01328 Germany Theoretical Chemistry Technische Universität Dresden Dresden01062 Germany Institute of Solid State Physics Technische Universität Wien WienA-1040 Austria School of Engineering Brown University ProvidenceRI02912 United States Department of Mechanical Engineering and Materials Science Yale University New HavenCT06511 United States Materials Measurement Science Division National Institute of Standards and Technology GaithersburgMD20899 United States Department of Materials Science and Engineering University of Maryland College ParkMD20742 United States Department of Chemistry State University of New York at Buffalo BuffaloNY14260 United States Department of Physics Department of Chemistry University of North Texas DentonTX76203 United States Santa Fe Institute Santa FeNM87501 United States Department of Physics Science of Advanced Materials Program Central Michigan University Mount PleasantMI48859 United States Department of Physics NRCN P.O. Box 9001 Beer-Sheva84190 Israel Department of Materials Science and Engineering Department of Chemistry and Biochemistry University of Texas at Dallas RichardsonTX75080 United States

The realization of novel technological opportunities given by computational and autonomous materials design requires efficient and effective frameworks. For more than two decades, aflow++ (Automatic-Flow Framework for materials Discovery) has provided an interconnected collection of algorithms and workflows to address this challenge. This article contains an overview of the software and some of its most heavily-used functionalities, including algorithmic details, standards, and examples. Key thrusts are highlighted: the calculation of structural, electronic, thermodynamic, and thermomechanical properties in addition to the modeling of complex materials, such as high-entropy ceramics and bulk metallic glasses. The aflow++ software prioritizes interoperability, minimizing the number of independent parameters and tolerances. It ensures consistency of results across property sets — facilitating machine learning studies. The software also features various validation schemes, offering real-time quality assurance for data generated in a high-throughput fashion. Altogether, these considerations contribute to the development of large and reliable materials databases that can ultimately deliver future materials systems. © 2022, CC BY.

关键词： Quality assurance

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Light-driven C-H activation mediated by 2D transition metal dichalcogenides

arXiv

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arXiv 2022年

作者： Li, Jingang Zhang, Di Guo, Zhongyuan Jiang, Xi Larson, Jonathan M. Zhu, Haoyue Zhang, Tianyi Gu, Yuqian Blankenship, Brian Chen, Min Wu, Zilong Huang, Suichu Kostecki, Robert Minor, Andrew M. Grigoropoulos, Costas P. Akinwande, Deji Terrones, Mauricio Redwing, Joan M. Li, Hao Zheng, Yuebing Materials Science & Engineering Program Texas Materials Institute Walker Department of Mechanical Engineering The University of Texas at Austin AustinTX78712 United States Laser Thermal Laboratory Department of Mechanical Engineering University of California BerkeleyCA94720 United States Tohoku University Sendai980-8577 Japan Materials Sciences Division Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Department of Chemistry and Biochemistry Baylor University WacoTX76798 United States Department of Materials Science and Engineering The Pennsylvania State University University ParkPA16802 United States Chandra Family Department of Electrical & Computer Engineering The University of Texas at Austin AustinTX78712 United States Department of Materials Science and Engineering University of California BerkeleyCA94720 United States Energy Storage and Distributed Resources Division Lawrence Berkeley National Laboratory BerkeleyCA94720 United States National Center for Electron Microscopy Molecular Foundry Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Center for Two-Dimensional and Layered Materials The Pennsylvania State University University ParkPA16802 United States Department of Physics Department of Chemistry The Pennsylvania State University University ParkPA16802 United States 2D Crystal Consortium Materials Research Institute The Pennsylvania State University University ParkPA16802 United States

C-H bond activation enables the facile synthesis of new chemicals. While C-H activation in short-chain alkanes has been widely investigated, it remains largely unexplored for long-chain organic molecules. Here, we report light-driven C-H activation in complex organic materials mediated by 2D transition metal dichalcogenides (TMDCs) and the resultant solid-state synthesis of luminescent carbon dots in a spatially-resolved fashion. We unravel the efficient H adsorption and a lowered energy barrier of C-C coupling mediated by 2D TMDCs to promote C-H activation. Our results shed light on 2D materials for C-H activation in organic compounds for applications in organic chemistry, environmental remediation, and photonic materials. © 2022, CC BY-NC-SA.

关键词： Chemical activation

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Spin scattering and Hall effects in monolayer Fe3GeTe2

arXiv

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arXiv 2023年

作者： Yu, Luyan Yu, Jie-Xiang Zang, Jiadong Lake, Roger K. Zhuang, Houlong Yin, Gen Department of Physics University of Texas at Austin AustinTX78712 United States Department of Physics University of Florida GainesvilleFL32611 United States Department of Physics and Materials Science Program University of New Hampshire DurhamNH03824 United States Department of Electrical and Computer Engineering University of California-Riverside RiversideCA92521 United States Mechanical and Aerospace Engineering Arizona State University TempeAZ85287 United States Department of Physics Georgetown University WashingtonDC20057 United States

We theoretically show that the carrier transport in monolayer Fe3GeTe2 experiences a transition between anomalous Hall effect and spin Hall effect when the spin polarization of disorders switches between out-of-plane and in-plane. These Hall effects are allowed when the magnetization is polarized in-plane, breaking the C3 rotation symmetry. The transition originates from the selection rule of spin scattering, the strong spin-orbit coupling, and the van Hove singularities near the Fermi surface. The scattering selection rule tolerates the sign change of the disorder spin, which provides a convenient method to detect the switching of antiferromagnetic insulators regardless of the interfacial roughness in a heterostructure. This provides a convenient platform for the study of 2D spintronics through various van-der-Waals heterostructures. Copyright © 2023, The Authors. All rights reserved.

关键词： Monolayers

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Corrigendum: Moving Next-Generation Phase-Field Models to BMS Applications -A Case Study that Confirms Professor Uzi Landau's Foresight [J. Electrochem. Soc., 171, 063507 (2024)]

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Journal of The Electrochemical Society 2024年第8期171卷 089002-089002页

作者： Tushar K. Telmasre Anthony César Concepción Suryanarayana Kolluri Lubhani Mishra Raghav S. Thiagarajan Aditya Naveen Matam Akshay Subramaniam Taylor R. Garrick Venkat R. Subramanian Materials Science and Engineering Program Texas Materials Institute The University of Texas at Austin Austin TX 78712 United States of America Walker Department of Mechanical Engineering The University of Texas at Austin Austin TX 78712 United States of America Battery Materials and Systems Research General Motors Global Research and Development Center Warren MI 48090 United States of America Chandra Department of Electrical and Computer Engineering The University of Texas at Austin Austin TX 78712 United States of America Energy Storage and Propulsion R&D and Manufacturing Engineering General Motors Technical Center Warren MI 48092 United States of America Affiliate Faculty Oden Institute for Computational Science and Engineering The University of Texas at Austin Austin TX 78712 United States of America

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Hierarchically Porous C/Fe3C Membranes with Fast Ion-Transporting Channels and Polysulfide-Trapping Networks for High-Areal-Capacity Li-S Batteries

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Nano letters 2020年第1期20卷 701-708页

作者： Xiangcun Li Yue Zhang Shuting Wang Yang Liu Yu Ding Gaohong He Ning Zhang Guihua Yu State Key Laboratory of Fine Chemicals Chemical Engineering Department Dalian University of Technology Dalian 116024 China. Materials Science and Engineering Program and Department of Mechanical Engineering The University of Texas at Austin Austin Texas 78712 United States.

We report here highly scalable yet stackable C/FeC membranes with fast ion-transport micro-/nanochannels and polysulfide-trapping networks via a facile phase-inversion process for high-areal-capacity Li-S batteries. The membrane cathodes with aligned channels and hierarchically porous networks significantly promote Li and electron transportation and meanwhile trap soluble polysulfide intermediates (LiPSs) effectively via strong chemical adsorption of the doped FeC nanoparticles in the membrane toward LiPSs. We further demonstrated that five-layer membrane electrodes with high S loading of 7.1 mg cm were readily prepared via layer-by-layer stacking of the C/FeC membrane, which can deliver a high capacity of 726 mA h g after 100 cycles, corresponding to an ultra-high-areal-capacity of 5.15 mA h cm at a low electrolyte/sulfur (/) ratio of 6.4 μL mg. The scalable multifunctional membrane electrodes with excellent electrochemical performance under high-sulfur-loading and lean electrolyte conditions reveal its promising applications in practical Li-S batteries.

关键词： Li−S batteries ion channels phase inversion polysulfide trapping porous membrane

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