A5002327982- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced X-ray Imaging Techniques
- Advanced Electron Microscopy Techniques and Applications
- Advancements in Battery Materials
- Electron and X-Ray Spectroscopy Techniques
- Perovskite Materials and Applications
- Acoustic Wave Resonator Technologies
- Ferroelectric and Piezoelectric Materials
- Semiconductor materials and devices
- 2D Materials and Applications
- Graphene research and applications
- Spectroscopy and Laser Applications
- Electronic and Structural Properties of Oxides
- Catalytic Processes in Materials Science
- MXene and MAX Phase Materials
- Diamond and Carbon-based Materials Research
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced Battery Materials and Technologies
- Boron and Carbon Nanomaterials Research
- Physics of Superconductivity and Magnetism
- Multiferroics and related materials
- Advancements in Photolithography Techniques
- Medical Imaging Techniques and Applications
- Surface and Thin Film Phenomena
European Synchrotron Radiation Facility
2017-2025
Argonne National Laboratory
2019-2025
Anhui Normal University
2012-2025
PLA Rocket Force University of Engineering
2021-2025
Nano Carbon (Poland)
2025
Center for Nanoscale Materials
2024-2025
Shenzhen Technology University
2024
Shenzhen University
2024
State Key Laboratory of Pollution Control and Resource Reuse
2022-2024
Zhejiang University of Technology
2024
Mechanical integrity issues such as particle cracking are considered one of the leading causes structural deterioration and limited long-term cycle stability for Ni-rich cathode materials Li-ion batteries. Indeed, detrimental effects generated from crack formation not yet entirely addressed. Here, applying physicochemical electrochemical ex situ in characterizations, effect Co Mn on mechanical properties material thoroughly investigated. As a result, we successfully mitigate issue cathodes...
Abstract Extensive efforts have been made to improve the Li‐ionic conductivity of solid electrolytes (SE) for developing promising all‐solid‐state Li‐based batteries (ASSB). Recent studies suggest that minimizing existing interface problems is even more important than maximizing SE. Interfaces are essential in ASSB, and their properties significantly influence battery performance. Interface problems, arising from both physical (electro)chemical material properties, can inhibit transport...
Transitioning from polycrystalline to single-crystalline nickel-rich cathodes has garnered considerable attention in both academia and industry, driven by advantages of high tap density enhanced mechanical properties. However, with nickel content (>70%) suffer substantial capacity degradation, which poses a challenge their commercial viability. Leveraging multiscale spatial resolution diffraction imaging techniques, we observe that lattice rotations occur universally play pivotal role the...
Ptychographic imaging is a powerful means of beyond the resolution limits typical x-ray optics. Recovering images from raw ptychographic data, however, requires solution an inverse problem, namely, phase retrieval. Phase retrieval algorithms are computationally expensive, which precludes real-time imaging. In this work, we propose PtychoNN, approach to solve ptychography data inversion problem based on deep convolutional neural network. We demonstrate how proposed method can be used predict...
The ID01 beamline has been built to combine Bragg diffraction with imaging techniques produce a strain and mosaicity microscope for materials in their native or operando state. A scanning probe nano-focused beams, objective-lens-based full-field microscopy coherent provide suite of tools which deliver micrometre few nanometre spatial resolution combined 10 −5 −3 tilt sensitivity. detailed description the from source sample is provided serves as reference user community. anticipated impact...
Abstract Ni‐rich layered cathode materials are progressively considered as the standard configuration of high‐energy electric vehicles by virtues their high capacity and eliminated “range anxiety.” However, poor cyclic stability severe cobalt supply crisis would restrain wide commercial applicability. Here, a cost‐effective single‐crystal Co‐free material LiNi 0.8 Mn 0.18 Fe 0.02 O 2 (NMF), which outperforms widely polycrystalline 0.83 Co 0.11 0.06 (MNCM) (SNCM) is reported. Surprisingly,...
High stability and efficiency of electrocatalysts are crucial for hydrogen evolution reaction (HER) toward water splitting in an alkaline media. Herein, a novel nano-Pt/Nb-doped Co(OH)2 (Pt/NbCo(OH)2 ) nanosheet is designed synthesized using water-bath treatment solvothermal reduction approaches. With nano-Pt uniformly anchored onto NbCo(OH)2 nanosheet, the Pt/NbCo(OH)2 shows outstanding electrocatalytic performances HER, achieving high at least 33 h, mass activity 0.65 mA µg-1 Pt, good...
Coherent imaging techniques provide an unparalleled multi-scale view of materials across scientific and technological fields, from structural to quantum devices, integrated circuits biological cells. Driven by the construction brighter sources high-rate detectors, coherent methods like ptychography are poised revolutionize nanoscale characterization. However, these advancements accompanied significant increase in data compute needs, which precludes real-time imaging, feedback decision-making...
Abstract While intensive efforts have been devoted to studying the nature of solid-electrolyte interphase (SEI), little attention has paid understanding its role in mechanical failures electrodes. Here we unveil impact SEI inhomogeneities on early-stage defect formation Si Buried under SEI, these defects are inaccessible by most surface-probing techniques. With operando full field diffraction X-ray microscopy, observe real time and connect their origin a heterogeneous degree lithiation. This...
Abstract Ferroelectric domain walls in single‐crystal complex oxide thin films are found to be orders of magnitude slower when the interfacial bonds with heteroepitaxial substrate broken create a freestanding film. This drastic change wall kinetics does not originate from alteration epitaxial strain; rather, it is correlated structural ripples at mesoscopic length scale and associated flexoelectric effects induced films. In contrast, bond‐breaking on local static ferroelectric properties...
Modern scanning microscopes can image materials with up to sub-atomic spatial and sub-picosecond time resolutions, but these capabilities come large volumes of data, which be difficult store analyze. We report the Fast Autonomous Scanning Toolkit (FAST) that addresses this challenge by combining a neural network, route optimization, efficient hardware controls enable self-driving experiment actively identifies measures sparse representative data subset in lieu full dataset. FAST requires no...
We present density-functional theory calculations of the dehydrogenation CHx (x = 1–4) on Au-alloyed Ni(211) surfaces, where Au atoms are substituted Ni surface with ratio to total stepped being 1 : 4, 2 and 3 respectively. To evaluate role at step-edge process methane dehydrogenation, adsorption dissociation a pure is also conducted. Our results show that addition weakens adsorbate–substrate interaction. With increase concentration, binding energies gradually decrease correlate well number...
This article proposes two integration methods to determine the structure factors along a surface diffraction rod measured with two-dimensional detector. The first method applies classic way of calculating integrated intensities in angular space. is adapted work efficiently data. second based on reciprocal An intensity map created by converting detected pixel then performed directly this map. A theoretical framework, as well comparison between methods, provided.
Recent advances in image data proccesing through deep learning allow for new optimization and performance-enhancement schemes radiation detectors imaging hardware. This enables experiments, which includes photon sciences synchrotron X-ray free electron lasers as a subclass, data-endowed artificial intelligence. We give an overview of generation at sources, learning-based methods processing tasks, hardware solutions acceleration. Most existing approaches are trained offline, typically using...
Understanding the microscopic origin of superior electromechanical response in relaxor ferroelectrics requires knowledge not only atomic-scale formation polar nanodomains (PNDs) but also rules governing arrangements and stimulated PNDs over longer distances. Using x-ray coherent nanodiffraction, we show staggered self-assembly into unidirectional mesostructures that refer to as laminates ferroelectric 0.68PbMg1/3Nb2/3O3-0.32PbTiO3 (PMN-0.32PT). We reveal highly heterogeneous...
Irradiation of high-temperature superconductor YBa2Cu3O7 (YBCO) with high-energy He+ ions is known to cause structural changes in the YBCO film, decreasing critical temperature TC and finally leading a superconductor-to-insulator transition. This allows one pattern narrow insulating regions focused ion beam (FIB) thus fabricate nanoscale Josephson junctions on films. Moreover, such irradiation film. However, details how these occur devices produced by FIB remain unknown. Using nanofocus...
Abstract Upgrades to advanced scientific user facilities such as next-generation x-ray light sources, nanoscience centers, and neutron are revolutionizing our understanding of materials across the spectrum physical sciences, from life sciences microelectronics. However, these facility instrument upgrades come with a significant increase in complexity. Driven by more exacting needs, instruments experiments become intricate each year. This increased operational complexity makes it ever...
The effects of the temperature on structure a single layer graphene Ir(111) have been investigated in situ growth chamber by grazing incidence x-ray diffraction between 10 and 1300 K. In addition, effect two temperatures has studied. lattice parameter main, nonrotated phase displays characteristic hysteresis whose lower upper branches correspond to phases which integer numbers ($m$,$n$)${}_{\mathrm{Ir}}$ Ir parameters match ($p$,$q$)${}_{\mathrm{Gr}}$ parameters, i.e., commensurate phases,...
Using coherent X-ray diffraction imaging (CXDI) as an in situ tool, we determined the shape and strain state of a platinum nanoparticle with ≈160 nm diameter supported by strontium titanate substrate. The experiment was performed at temperature 400 K under continuous gas flow conditions pure Ar Ar/CO mixtures. preselected scanning electron microscopy (SEM) postanalyzed atomic force (AFM). We obtain very good agreement between overall size, shape, defect structure CXDI AFM. In addition,...