Results 111 to 120 of about 1,250,528 (295)
Composition Determination from Strain Relaxation in 4D-STEM
Applied Physics ExpressAbstract Composition determination with high spatial resolution is crucial for device engineering of electronic and optoelectronic systems. While scanning transmission electron microscopy (STEM) can infer material composition from strain with high precision, multiple scattering effects (dynamic diffraction) often hinder accurate ...
F. Otto +3 more
openaire +2 more sources
Complementary ADF-STEM: a Flexible Approach to Quantitative 4D-STEM
, 2022 Scanning transmission electron microscopy (STEM) has a broad range of applications in materials characterization, including real-space imaging, spectroscopy, and diffraction, at length scales from the micron to sub-{\AA}ngstr\"om.
Etheridge, Joanne, Esser, Bryan D
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Ionic Precursors Transformed Into Vinyl Acetate Synthesis Catalyst via Reaction‐Driven Restructuring
Advanced Functional Materials, EarlyView.This work demonstrates that a simple physical mixture of Pd and Au ionic precursors, KOAc promoter, and SiO2 support can transform into a highly active vinyl acetate synthesis catalyst through reaction‐driven restructuring. The results highlight reaction‐induced restructuring as an innovative and sustainable catalyst design strategy.
Byeong Jun Cha +11 more
wiley +1 more source
Solving the Crystal Architecture of Coccoliths Using 4D-STEM
Microscopy and MicroanalysisAbstract Marine phytoplankton form functional biominerals with intricate morphologies and architectures. Coccolithophores occupy a special position among these organisms because of their production of intricate calcite scales, called coccoliths.
Rebecca C Leghziel +3 more
openaire +2 more sources
"Does gender matter when teaching STEM?" : Australian primary teachers speak
, 2021 Current literature illuminates that primary school teachers lack the skills and confidence required to teach STEM subjects effectively. This a recurring theme in the literature and a cause for concern.
Skillen, Maree A. (R17785) +2 more
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Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers
Advanced Functional Materials, EarlyView.We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang +12 more
wiley +1 more source
Framework of compressive sensing and data compression for 4D-STEM
, 2023 Four-dimensional Scanning Transmission Electron Microscopy (4D-STEM) is a powerful technique for high-resolution and high-precision materials characterization at multiple length scales, including the characterization of beam-sensitive materials. However,
Yuan, Renliang +3 more
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Advanced Functional Materials, EarlyView.A Li2O‐rich solid electrolyte interphase (SEI) is engineered on graphite through a propylene carbonate‐based electrolyte to spatially regulate Li plating. The homogeneous interphase lowers Li nucleation barriers, promotes conformal Li deposition around graphite particles, and suppresses dendritic accumulation, enabling durable hybrid Li‐ion/Li‐metal ...
Robert Kuphal +8 more
wiley +1 more source
Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2
Advanced Functional Materials, EarlyView.High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon +6 more
wiley +1 more source