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Advancing electrochemical impedance analysis through innovations in the distribution of relaxation times method

Joule 2024年第7期8卷 1958-1981页

作者： Maradesa, Adeleke Py, Baptiste Huang, Jake Lu, Yang Iurilli, Pietro Mrozinski, Aleksander Law, Ho Mei Wang, Yuhao Wang, Zilong Li, Jingwei Xu, Shengjun Meyer, Quentin Liu, Jiapeng Brivio, Claudio Gavrilyuk, Alexander Kobayashi, Kiyoshi Bertei, Antonio Williams, Nicholas J. Zhao, Chuan Danzer, Michael Zic, Mark Wu, Phillip Yrjänä, Ville Pereverzyev, Sergei Chen, Yuhui Weber, André Kalinin, Sergei V. Schmidt, Jan Philipp Tsur, Yoed Boukamp, Bernard A. Zhang, Qiang Gaberšček, Miran O'Hayre, Ryan Ciucci, Francesco Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology Hong Kong Metallurgical and Materials Engineering Colorado School of Mines Golden80401 United States Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical Engineering Tsinghua University Beijing China Green Energy Storage Trento38123 Italy Department of Manufacturing and Production Engineering Faculty of Mechanical Engineering and Ship Technology Institute of Machine and Materials Technology Gdańsk University of Technology Gdańsk Poland Electrode Design for Electrochemical Energy Systems University of Bayreuth Bayreuth Germany School of Chemistry University of New South Wales Sydney Australia School of Advanced Energy Sun Yat-Sen University Shenzhen China Sustainable Energy Center CSEM Neuchâtel2002 Switzerland Interdisciplinary Faculty of Science and Engineering Shimane University Matsue Japan Centre for Electronic and Optical Materials National Institute for Materials Science Tsukuba Japan Department of Civil and Industrial Engineering University of Pisa Pisa Italy Department of Materials Imperial College London Exhibition Road LondonSW7 2AZ United Kingdom Department of Chemical Engineering Massachusetts Institute of Technology Cambridge02139 United States Electrical Energy Systems University of Bayreuth Bayreuth Germany Ruder Boskovic Institute Zagreb Croatia Department of Materials and Minerals Resources Engineering National Taipei University Taipei Taiwan Finland Johann Radon Institute for Computational and Applied Mathematics Linz Austria School of Science and Engineering Nanjing Tech. University Nanjing China Karlsruhe Germany Department of Materials Science and Engineering University of Tennessee KnoxvilleTN37996 United States Physical Science Division Pacific Northwest National Laboratory RichlandWA99354 United States Systems Engineering for Electrical Energy Storage University of B

Electrochemical impedance spectroscopy (EIS) is widely used in electrochemistry, energy sciences, biology, and beyond. Analyzing EIS data is crucial, but it often poses challenges because of the numerous possible equivalent circuit models, the need for accurate analytical models, the difficulties of nonlinear regression, and the necessity of managing large datasets within a unified framework. To overcome these challenges, non-parametric models, such as the distribution of relaxation times (DRT, also known as the distribution function of relaxation times, DFRT), have emerged as promising tools for EIS analysis. For example, the DRT can be used to generate equivalent circuit models, initialize regression parameters, provide a time-domain representation of EIS spectra, and identify electrochemical processes. However, mastering the DRT method poses challenges as it requires mathematical and programming proficiency, which may extend beyond experimentalists’ usual expertise. Post-inversion analysis of DRT data can be difficult, especially in accurately identifying electrochemical processes, leading to results that may not always meet expectations. This article examines non-parametric EIS analysis methods, outlining their strengths and limitations from theoretical, computational, and end-user perspectives, and provides guidelines for their future development. Moreover, insights from survey data emphasize the need to develop a large impedance database, akin to an impedance genome. In turn, software development should target one-click, fully automated DRT analysis for multidimensional EIS spectra interpretation, software validation, and reliability. Particularly, creating a collaborative ecosystem hinged on free software could promote innovation and catalyze the adoption of the DRT method throughout all fields that use impedance data. © 2024 Elsevier Inc.

关键词： Electrochemical impedance spectroscopy

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Van der Waals device integration beyond the limits of van der Waals forces using adhesive matrix transfer

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Nature Electronics 2024年第1期7卷 17-28页

作者： Satterthwaite, Peter F. Zhu, Weikun Jastrzebska-Perfect, Patricia Tang, Melbourne Spector, Sarah O. Gao, Hongze Kitadai, Hikari Lu, Ang-Yu Tan, Qishuo Tang, Shin-Yi Chueh, Yu-Lun Kuo, Chia-Nung Lue, Chin Shan Kong, Jing Ling, Xi Niroui, Farnaz Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology CambridgeMA United States Research Laboratory of Electronics Massachusetts Institute of Technology CambridgeMA United States Department of Chemical Engineering Massachusetts Institute of Technology CambridgeMA United States Department of Physics Massachusetts Institute of Technology CambridgeMA United States Department of Chemistry Boston University BostonMA United States Department of Materials Science and Engineering National Tsing Hua University Hsinchu Taiwan Semiconductor Research Center Hon Hai Research Institute Taipei Taiwan College of Semiconductor Research National Tsing Hua University Hsinchu Taiwan Department of Physics National Cheng Kung University Tainan Taiwan Taiwan Consortium of Emergent Crystalline Materials National Science and Technology Council Taipei Taiwan Program on Key Materials Academy of Innovative Semiconductor and Sustainable Manufacturing National Cheng Kung University Tainan Taiwan Division of Materials Science and Engineering Boston University BostonMA United States The Photonics Center Boston University BostonMA United States

Pristine van der Waals (vdW) heterostructures formed between two-dimensional (2D) and other materials can be used to create optical and electronic devices. However, the weak vdW forces alone do not allow direct physical stacking of arbitrary layers. As a result, vdW heterostructure fabrication typically requires solvents, sacrificial layers or high temperatures, which can introduce damage and contaminants. Here, we show that adhesive matrix transfer can eliminate these limitations and can provide vdW integration beyond the limits of vdW forces. In the approach, a hybrid high- and low-adhesion surface is used to decouple the forces driving the transfer from the vdW forces defining the heterostructure of interest. We show that the technique can be used to achieve direct vdW integration of diverse 2D materials (MoS2, WSe2, PtS2 and GaS) with dielectrics (SiO2 and Al2O3), which is conventionally forbidden but critical for active devices and scalable, aligned heterostructure formation. The approach also allows single-step 2D material-to-device integration, which we illustrate by fabricating arrays of monolayer MoS2 transistors. As any exposure to solvents or polymers is avoided, the interfaces and surfaces remain pristine. Thus, intrinsic 2D material properties can be probed without the influence of processing steps. The materials can be further engineered through surface treatments and used to fabricate unconventional device form factors. © 2023, The Author(s), under exclusive licence to Springer Nature Limited.

关键词： Van der Waals forces

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Electronically Conducting Titania Single Crystals Prepared by Flash Exhibit Memristor Switching

SSRN

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SSRN 2024年

作者： Jo, Seohyeon Raj, Rishi Materials Science Engineering Program Department of Mechanical Engineering University of Colorado Boulder BoulderCO80309 United States

We report memristor behavior in bar shaped single crystals of titania that have been "formed" into electronic conductors. The cycling experiments are carried out with forward and reverse current, rather than voltage;the current experiments are more reproducible. The single crystals permit in-situ measurements of interface as well as the end-to-end resistivities by the four-point method. The total specimen resistance is shown to be nearly equal to the sum of the interface resistances at the positive and negative electrodes referenced at the forming step. The memristor effect arises predominantly from the change in the interfacial resistance at the positive electrode which shows local ratio of high/low resistance of x103. The resistance at the opposite interface remains unchanged. The effect at the positive electrode is attributed to a change in the state of exciton-like electron-hole configurations under the local field induced by the current. The memristor effect is sensitive to crystal-orientation. © 2024, The Authors. All rights reserved.

关键词： Memristors

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Preparation of LFP-based cathode materials for lithium-ion battery applications

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materials Today: Proceedings 2022年 65卷 2347-2350页

作者： Suttison, Suchanat Pengpat, Kamonpan Intatha, Uraiwan Fan, Jinchen Zhang, Wei Eitssayeam, Sukum Master's Degree Program in Materials Science Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand Graduate School Chiang Mai University Chiang Mai Thailand Department of Physics and Materials Science Faculty of Science Chiang Mai University Thailand Center of Innovative Materials for Sustainability School of Science Mae Fah Luang University Chiang Rai 57100 Thailand School of Materials and Chemistry University of Shanghai for Science and Technology Shanghai 200093 China Department of Engineering Mechanics Dalian University of Technology Dalian 116024 China

Lithium-ion batteries (LIB) have developed into the mainstream power source of energy storage devices due to their advantages: high power density, high power, long service life, and less pollution. This materials development for LFP batteries was considered successful in synthesizing powder. Here we show that three synthesis conditions were performed. LFP doped NiO, NMC, and (NH4)2HPO4 were synthesized by the nitrogen gas flow method. LFP-doped NiO was burned at 600 °C and 700 °C for five h. NMC doped with LFP burned at 550 °C for five h, and NMC-doped LFP and (NH4)2HPO4 were burned at 550 °C and 600 °C for five h. The structure and morphology of the material were examined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). © 2022

关键词： Lithium-ion batteries

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Processing-dependent stabilization of a dissimilar rare-earth boride in high-entropy (Ti0.2Zr0.2Hf0.2Ta0.2Er0.2)B2 with enhanced hardness and grain boundary segregation

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Journal of the European Ceramic Society 2022年第12期42卷 5164-5171页

作者： Qin, Mingde Shivakumar, Sashank Lei, Tianjiao Gild, Joshua Hessong, Esther C. Wang, Haoren Vecchio, Kenneth S. Rupert, Timothy J. Luo, Jian Program of Materials Science and Engineering University of California San Diego La JollaCA92093 United States Department of NanoEngineering University of California San Diego La JollaCA92093 United States Department of Mechanical and Aerospace Engineering University of California Irvine IrvineCA92697 United States Department of Materials Science and Engineering University of California Irvine IrvineCA92697 United States

This study demonstrates that 20% of a rare-earth (RE) diboride (ErB2) can be stabilized in a high-entropy transition metal (TM) diboride, despite the dissimilar chemical properties of RE and TM elements and large differences in lattice parameters of ErB2 and typical TMB2. However, the phase formation depends on the fabrication route, which is a noteworthy observation. Specifically, single-phase (Ti0.2Zr0.2Hf0.2Ta0.2Er0.2)B2 is synthesized via reactive spark plasma sintering (SPS) using elemental boron and metal elements. In contract, a specimen made by borocarbothermal reduction of binary oxides and SPS possess significant amounts of two Er-rich secondary phases. Notably, the RE addition in high-entropy TM diboride leads to improved hardness. Aberration-corrected scanning transmission electron microscopy (AC STEM) and energy-dispersive X-ray spectroscopy (EDS) elemental analyses further reveal significant Er segregation at grain boundaries. This work suggests that high-entropy ceramics can have significant solubilities of dissimilar components that may enable new, tunable, and improved properties. © 2022 The Authors

关键词： Rare earths

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Ultra-transparent nanostructured coatings via flow-induced one-step coassembly

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Nano materials science 2022年第2期4卷 97-103页

作者： Jingjing Liu Sonia E.Chavez Hao Ding Maria M.Farooqui Zaili Hou Sharon Lin Thomas D.D'Auria Julia M.Kennedy Anna Marie LaChance Luyi Sun Polymer Program Institute of Materials ScienceUniversity of ConnecticutStorrsConnecticut06269United States Department of Chemical&Biomolecular Engineering University of ConnecticutStorrsConnecticut06269United States Department of Biomedical Engineering University of ConnecticutStorrsConnecticut06269United States

Polyvinyl alcohol(PVA)/laponite(LP)nanocomposite coatings were fabricated via a facile one-step coassembly *** formed nanocoatings contain a high concentration of LP nanosheets,which can be well aligned along the substrate surface during the coassembly *** to the highly orientated structure,the flexible nanocoatings exhibit ultra-high transparency and superior mechanical properties,and can also act as excellent gas *** nanocoatings can be exceptional candidates for a variety of applications,such as food packaging.

关键词： Nanocoating Coassembly Polyvinyl alcohol Laponite

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Ag-decorated 3D flower-like Bi_(2)MoO_(6)/rGO with boosted photocatalytic performance for removal of organic pollutants

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Rare Metals 2021年第5期40卷 1086-1098页

作者： Xin Liu Wei-Ya Huang Qin Zhou Xi-Rong Chen Kai Yang Dan Li Dionysios D.Dionysiou Faculty of Materials Metallurgical and ChemistryJiangxi University of Science and TechnologyGanzhou 341000China Environmental Engineering and Science Program Department of Chemical and Environmental EngineeringUniversity of CincinnatiCincinnatiOH 45221-0012USA College of Science HealthEngineering and EducationMurdoch UniversityMurdoch 6150Australia

A series of unique 3D flower-like Bi_(2)MoO_(6)(BMO)/reduced graphene oxide(rGO)heterostructured composites decorated with varying amounts of Ag nanoparticles(NPs)were *** morphological characteristics,structural features,energy band structures and photoelectrochemical properties were systematically *** the Ag/BMO/rGO ternary composites(AgBGy;y=1%,2%and 3%)demonstrated greater photocatalytic activity towards efficient removal of our selected organic models[methyl orange(MO),rhodamine B(RhB)and phenol],as compared with the BMO/rGO binary composites(BG-x;x=0.25,2,4 and 5).Particularly,AgBG-2%,which was synthesized with the addition of 2 wt% rGO and 2 wt%Ag in BMO,possessed superior photocatalytic *** fitted rate constants(k)for the photocatalytic degradation of RhB,MO and phenol using AgBG-2% were estimated to be 0.0286,0.0301 and 0.0165 min^(-1),respectively,which were over one order of magnitude greater than those obtained using pure *** factors may contribute to the observed enhancement,including greater specific surface area,enhanced light absorption,promoted spatial separation of electronhole(e^(-)-h^(+))pairs and their suppressed recombination,especially benefiting from the synergistic effects among BMO,rGO and Ag *** work suggests that the rational design of BMO/rGO/Ag ternary composite was an effective strategy to boost the photocatalytic activity of the resulting catalyst towards the highly efficient removal of organic pollutants from water.

关键词： Bi_(2)MoO_(6) Reduced graphene oxide Ag nanoparticles 3D flower-like morphology Photocatalytic degradation

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Vibrational EELS for Solid-State Li-Ion Batteries: Mapping Li Distributions and Beyond

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Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada 2023年第1期29卷 633-635页

作者： Gadre, Chaitanya A. Lee, Tom Qi, Ji Ong, Shyue Ping Pan, Xiaoqing Department of Physics and Astronomy University of California Irvine CA United States Department of Materials Science and Engineering University of California Irvine CA United States Materials Science and Engineering Program University of California San Diego La Jolla CA United States Department of NanoEngineering University of California San Diego La Jolla CA United States Irvine Materials Research Institute University of California Irvine CA United States

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3D Magnetization Reconstruction for Lorentz Microscopy using Differential programming

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Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada 2023年第1期29卷 1756-1757页

作者： McCray, Arthur R C Cherukara, Mathew Petford-Long, Amanda K. Phatak, Charudatta Materials Science Division Argonne National Laboratory Lemont IL United States Applied Physics Program Northwestern University Evanston IL United States Advanced Photon Source Argonne National Laboratory Lemont IL United States Department of Materials Science and Engineering Northwestern University Evanston IL United States

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FATIGUE AND FATIGUE DAMAGE MECHANISMS OF HIGH-TEMPERATURE THERMOPLASTICS COMPOSITES: A REVIEW 10

FATIGUE AND FATIGUE DAMAGE MECHANISMS OF HIGH-TEMPERATURE TH...

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10th Composites and Advanced materials Expo, CAMX 2024

作者： Sheley, Rahul Tate, Jitendra Tehrani, Mehran Materials Science Engineering and Commercialization Program United States Ingram School of Engineering Texas State University 601 University Drive San MarcosTX78666 United States Jacobs School of Engineering University of California 9500 Gilman DriveLa Jolla San DiegoCA92093 United States

ISBN: (纸本)9781934551462

The growing demand for materials that can withstand extreme conditions in the aerospace and automotive industries has led to significant research on high-temperature polymeric composites. These composites are designed to maintain their structural integrity and mechanical properties at temperatures above 300 degrees Celsius. The development of these advanced materials is crucial for improving the performance and safety of aerospace and automotive components operating in extreme environments. Traditionally, thermosets were the most favorable for working in extreme environmental conditions due to their superior heat resistance and durability. Researchers have recently focused more on the development of reinforced thermoplastic composites. The specific challenges faced by researchers and engineers when developing high-temperature composites include maintaining structural integrity and mechanical properties under extreme conditions. The specific techniques used by researchers to modify and reinforce high-temperature thermoplastics for enhanced performance include the use of advanced nanofillers and their dispersion methods, fiber reinforcement strategies, flame retardant formulations, and toughening agent incorporation. The research has shown promising results in improving the mechanical, thermal, and physical performance of thermoplastics composites. However, challenges remain in predicting the long-term performance and durability of high-temperature thermoplastics in aerospace and automotive environments. These materials are essential for applications requiring thermal and chemical resistance, but their deployment in critical environments exposes them to conditions that can lead to fatigue failure through different mechanisms. These mechanisms include oxidation, thermal degradation, matrix crystallinity changes, fiber-matrix interface degradation, residual stresses, creep, and microcracking. This article aims to review the approaches various authors have adopted to ana

关键词： Durability

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