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Article
Atomic-scale identification of active sites of oxygen reduction nanocatalysts
Heterogeneous nanocatalysts play a crucial role in both the chemical and energy industries. Despite substantial advancements in theoretical, computational and experimental studies, identifying their active sit...
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Article
Atomic dynamics of electrified solid–liquid interfaces in liquid-cell TEM
Electrified solid–liquid interfaces (ESLIs) play a key role in various electrochemical processes relevant to energy1–5, biology6 and geochemistry7. The electron and mass transport at the electrified interfaces ma...
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Article
Open AccessImaging 3D chemistry at 1 nm resolution with fused multi-modal electron tomography
Measuring the three-dimensional (3D) distribution of chemistry in nanoscale matter is a longstanding challenge for metrological science. The inelastic scattering events required for 3D chemical imaging are too...
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Article
Open AccessSmall, solubilized platinum nanocrystals consist of an ordered core surrounded by mobile surface atoms
In situ structures of Platinum (Pt) nanoparticles (NPs) can be determined with graphene liquid cell transmission electron microscopy. Atomic-scale three-dimensional structural information about their physioche...
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Article
Three-dimensional atomic structure and local chemical order of medium- and high-entropy nanoalloys
Medium- and high-entropy alloys (M/HEAs) mix several principal elements with near-equiatomic composition and represent a model-shift strategy for designing previously unknown materials in metallurgy1–8, catalysis
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Article
Open AccessSolving complex nanostructures with ptychographic atomic electron tomography
Transmission electron microscopy (TEM) is essential for determining atomic scale structures in structural biology and materials science. In structural biology, three-dimensional structures of proteins are rout...
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Article
Open AccessThe emergence of three-dimensional chiral domain walls in polar vortices
Chirality or handedness of a material can be used as an order parameter to uncover the emergent electronic properties for quantum information science. Conventionally, chirality is found in naturally occurring ...
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Article
Open AccessImaging the electron charge density in monolayer MoS2 at the Ångstrom scale
Four-dimensional scanning transmission electron microscopy (4D-STEM) has recently gained widespread attention for its ability to image atomic electric fields with sub-Ångstrom spatial resolution. These electri...
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Article
Indefinite and bidirectional near-infrared nanocrystal photoswitching
Materials whose luminescence can be switched by optical stimulation drive technologies ranging from superresolution imaging1–4, nanophotonics5, and optical data storage6,7, to targeted pharmacology, optogenetics,...
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Article
Templated encapsulation of platinum-based catalysts promotes high-temperature stability to 1,100 °C
Stable catalysts are essential to address energy and environmental challenges, especially for applications in harsh environments (for example, high temperature, oxidizing atmosphere and steam). In such conditi...
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Article
Open AccessDirect strain correlations at the single-atom level in three-dimensional core-shell interface structures
Nanomaterials with core-shell architectures are prominent examples of strain-engineered materials. The lattice mismatch between the core and shell materials can cause strong interface strain, which affects the...
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Article
Open AccessReal-time 3D analysis during electron tomography using tomviz
The demand for high-throughput electron tomography is rapidly increasing in biological and material sciences. However, this 3D imaging technique is computationally bottlenecked by alignment and reconstruction ...
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Article
Open AccessDefect-mediated ripening of core-shell nanostructures
Understanding nanostructure ripening mechanisms is desirable for gaining insight on the growth and potential applications of nanoscale materials. However, the atomic pathways of nanostructure ripening in solut...
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Article
Three-dimensional atomic packing in amorphous solids with liquid-like structure
Liquids and solids are two fundamental states of matter. However, our understanding of their three-dimensional atomic structure is mostly based on physical models. Here we use atomic electron tomography to exp...
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Article
Open AccessAtomic scale crystal field map** of polar vortices in oxide superlattices
Polar vortices in oxide superlattices exhibit complex polarization topologies. Using a combination of electron energy loss near-edge structure analysis, crystal field multiplet theory, and first-principles cal...
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Article
Open AccessCrystallization of nanoparticles induced by precipitation of trace polymeric additives
Orthogonal to guided growth of nanoparticle (NP) crystals using DNA or supramolecules, a trace amount of polymeric impurities (<0.1 wt.%) leads to reproducible, rapid growth of 3D NP crystals in solution and o...
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Article
Exchange bias due to coupling between coexisting antiferromagnetic and spin-glass orders
Exchange bias is a property of widespread technological utility, but its underlying mechanism remains elusive, in part because it is rooted in the interaction of coexisting order parameters in the presence of ...
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Article
Determining the three-dimensional atomic structure of an amorphous solid
Amorphous solids such as glass, plastics and amorphous thin films are ubiquitous in our daily life and have broad applications ranging from telecommunications to electronics and solar cells1–4. However, owing to ...
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Article
Open AccessProbing electronic structure in berkelium and californium via an electron microscopy nanosampling approach
Due to their rarity and radioactive nature, comparatively little is known about the actinides, particularly those with atomic numbers higher than that of plutonium, and their compounds. In this work, we descri...
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Article
Chemical and bonding analysis of liquids using liquid cell electron microscopy
Liquid cell transmission electron microscopy (TEM) has become an essential tool for studying the structure and properties of both hard and soft condensed-matter samples, as well as liquids themselves. Liquid c...
