FIB-SEM tomography in catalysis and electrochemistry

Ródenas, Tania; Prieto, Gonzalo

doi:10.1016/j.cattod.2022.09.013

Cited by 4 publications

(1 citation statement)

References 77 publications

(87 reference statements)

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“…Transmission electron (TEM) tomography [ 146 ] excels in the sub‐10 nm resolution regime, enabling detailed imaging of nanosized specimens, but is limited in the overall size that can be investigated. [ 147 ] FIB/SEM tomography can bridge the nanoscale to microscale domain with spatial resolutions ranging from a few to hundreds of nanometers. As depicted in Figure 14, volumes with edge lengths up to tens of micrometers [ 148 ] can be sliced with a slice width as small as several nanometers while recording a SEM image of the exposed cross‐sections with resolution down to 1 nm.…”

Section: Methodsmentioning

confidence: 99%

Multiscale Investigation of Sodium‐Ion Battery Anodes: Analytical Techniques and Applications

Schäfer,

Hankins,

Allion

et al. 2024

Advanced Energy Materials

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The anode/electrolyte interface behavior, and by extension, the overall cell performance of sodium‐ion batteries is determined by a complex interaction of processes that occur at all components of the electrochemical cell across a wide range of size‐ and timescales. Single‐scale studies may provide incomplete insights, as they cannot capture the full picture of this complex and intertwined behavior. Broad, multiscale studies are essential to elucidate these processes. Within this perspectives article, several analytical and theoretical techniques are introduced, and described how they can be combined to provide a more complete and comprehensive understanding of sodium‐ion battery (SIB) performance throughout its lifetime, with a special focus on the interfaces of hard carbon anodes. These methods target various length‐ and time scales, ranging from micro to nano, from cell level to atomistic structures, and account for a broad spectrum of physical and (electro)chemical characteristics. Specifically, how mass spectrometric, microscopic, spectroscopic, electrochemical, thermodynamic, and physical methods can be employed to obtain the various types of information required to understand battery behavior will be explored. Ways are then discussed how these methods can be coupled together in order to elucidate the multiscale phenomena at the anode interface and develop a holistic understanding of their relationship to overall sodium‐ion battery function.

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Section: Methodsmentioning

confidence: 99%

Multiscale Investigation of Sodium‐Ion Battery Anodes: Analytical Techniques and Applications

Schäfer,

Hankins,

Allion

et al. 2024

Advanced Energy Materials

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Determination and Engineering of Li‐Ion Tortuosity in Electrode Toward High Performance of Li‐Ion Batteries

Yan,

Wang,

Zhang

et al. 2024

Advanced Energy Materials

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With the progressively widespread application of lithium‐ion batteries, their energy density and power density are being pursued to the extremely high. However, both cannot be reached simultaneously at present. Tortuosity depicts the relationship in ionic diffusion between bulk electrolyte and the electrolyte in a porous electrode, provides information about channels within electrodes, and correlates the current dilemma between energy density and power capability of the lithium‐ion batteries. It is crucial to upgrade the fast charging and discharging performance of LIBs electrodes without losing volumetric energy density and using tortuosity as a guide is able to achieve this goal fundamentally. Meanwhile, tortuosity can serve as an evaluation parameter for production quality assessment, but this demands a fast, accurate, and cost‐effective measuring method. After the definition and measurement of tortuosity are provided, this article analyzes the structural influencing factors of tortuosity which have impacts on ion transportation and subsequently on tortuosity to facilitate a more systematic and comprehensive picture. Through the discussion of contradictions and influencing factors, a more refined transmission line model (the refined TLM) is perceived as the very first step to drive both aforementioned goals toward success and is discussed in the perspective part.

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Quantitative analysis of printed nanostructured networks using high-resolution 3D FIB-SEM nanotomography

Gabbett,

Doolan,

Synnatschke

et al. 2024

Nat Commun

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Networks of solution-processed nanomaterials are becoming increasingly important across applications in electronics, sensing and energy storage/generation. Although the physical properties of these devices are often completely dominated by network morphology, the network structure itself remains difficult to interrogate. Here, we utilise focused ion beam – scanning electron microscopy nanotomography (FIB-SEM-NT) to quantitatively characterise the morphology of printed nanostructured networks and their devices using nanometre-resolution 3D images. The influence of nanosheet/nanowire size on network structure in printed films of graphene, WS2 and silver nanosheets (AgNSs), as well as networks of silver nanowires (AgNWs), is investigated. We present a comprehensive toolkit to extract morphological characteristics including network porosity, tortuosity, specific surface area, pore dimensions and nanosheet orientation, which we link to network resistivity. By extending this technique to interrogate the structure and interfaces within printed vertical heterostacks, we demonstrate the potential of this technique for device characterisation and optimisation.

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FIB-SEM tomography in catalysis and electrochemistry

Cited by 4 publications

References 77 publications

Multiscale Investigation of Sodium‐Ion Battery Anodes: Analytical Techniques and Applications

Multiscale Investigation of Sodium‐Ion Battery Anodes: Analytical Techniques and Applications

Determination and Engineering of Li‐Ion Tortuosity in Electrode Toward High Performance of Li‐Ion Batteries

Quantitative analysis of printed nanostructured networks using high-resolution 3D FIB-SEM nanotomography

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