Quantification of metallic nanoparticle morphology on TiO2 using HAADF-STEM tomography

Sueda, S; Yoshida, Kenta; Tanaka, Nobuo

doi:10.1016/j.ultramic.2010.04.003

Cited by 26 publications

(11 citation statements)

References 40 publications

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“…We suspect that the homogenous, random localization of the metal particles could have a beneficial effect on the electrochemical properties of the material. It should be mentioned that the electron tomography quantitative results on nanoparticles can be distorted by damage to the structure caused by a convergent electron beam during imaging (Sueda et al ., ). Such effects can be avoided by applying a shorter acquisition time and larger tilt steps.…”

Section: Resultsmentioning

confidence: 97%

STEM study of Li₄Ti₅O₁₂ anode material modified with Ag nanoparticles

Andrzejczuk

Roguska

Michalska

et al. 2016

Journal of Microscopy

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Comprehensive scanning transmission electron microscopy (STEM) analysis of Li4 Ti5 O12 (LTO) powder modified by deposited Ag nanoparticles was performed. Nanocomposite powders with Ag content of 1 wt.%, 4 wt.%, 10 wt.% were fabricated in a chemical process from suspensions of Ag and LTO. Apart from the STEM results, the presence of pure silver on the surface of the ceramic powder was confirmed by XRD and XPS analyses. The silver particles deposited on the LTO particles were characterized using the EDS mapping technique. The quantified results of the EDS mapping showed a relatively homogenous distribution of silver nanoparticles on the powder surface for every metal content. The mean diameter of the nanoparticles deposited on the LTO powder was about 4 nm in all cases. An increase in the Ag content during chemical surface modification did not cause changes in the microstructure. Focusing on an analysis of the metallic nanoparticles on the ceramic powder, electron tomography was used as an investigative technique. A very precise analysis of three-dimensional nanostructures is desirable for a comprehensive analysis of complex materials. The quantified analysis of the Ag nanoparticles visualized using electron tomography confirmed the results of the size measurements taken from the two-dimensional EDS maps.

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Section: Resultsmentioning

confidence: 97%

STEM study of Li₄Ti₅O₁₂ anode material modified with Ag nanoparticles

Andrzejczuk

Roguska

Michalska

et al. 2016

Journal of Microscopy

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“…We can clearly observe fine Pt nanoparticles about 1-3 nm diameter located on the TiO 2 surface without the artifacts which result from a missing wedge or digital quantum noise. After 3D reconstruction based on the back-projection method, we have analyzed quantitatively the size, volume and number of Pt nanoparticles for each unit area on the titania surface by using the IMOD and in-house measurement programs [8].…”

Section: Resultsmentioning

confidence: 99%

In-situgas study and 3D quantitation of titania photocatalysts by advanced electron microscopy

Tanaka¹,

Yoshida²,

Arai³

2012

J. Phys.: Conf. Ser.

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“…Examples of nanoparticles characterization were recently presented by Sueda et al (2010) and Kaneko et al (2007).…”

Section: Scanning Transmission Electron Microscopy Tomographymentioning

confidence: 99%

3d Imaging of Individual Particles: a Review

Pirard

2012

Image Anal Stereol

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In recent years, impressive progress has been made in digital imaging and in particular in three dimensional visualisation and analysis of objects. This paper reviews the most recent literature on three dimensional imaging with a special attention to particulate systems analysis. After an introduction recalling some important concepts in spatial sampling and digital imaging, the paper reviews a series of techniques with a clear distinction between the surfometric and volumetric principles. The literature review is as broad as possible covering materials science as well as biology while keeping an eye on emerging technologies in optics and physics. The paper should be of interest to any scientist trying to picture particles in 3D with the best possible resolution for accurate size and shape estimation. Though several techniques are adequate for nanoscopic and microscopic particles, no special size limit has been considered while compiling the review.

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Quantification of metallic nanoparticle morphology on TiO2 using HAADF-STEM tomography

Cited by 26 publications

References 40 publications

STEM study of Li₄Ti₅O₁₂ anode material modified with Ag nanoparticles

STEM study of Li₄Ti₅O₁₂ anode material modified with Ag nanoparticles

In-situgas study and 3D quantitation of titania photocatalysts by advanced electron microscopy

3d Imaging of Individual Particles: a Review

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Quantification of metallic nanoparticle morphology on TiO2 using HAADF-STEM tomography

Cited by 26 publications

References 40 publications

STEM study of Li4Ti5O12 anode material modified with Ag nanoparticles

STEM study of Li4Ti5O12 anode material modified with Ag nanoparticles

In-situgas study and 3D quantitation of titania photocatalysts by advanced electron microscopy

3d Imaging of Individual Particles: a Review

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Product

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STEM study of Li₄Ti₅O₁₂ anode material modified with Ag nanoparticles

STEM study of Li₄Ti₅O₁₂ anode material modified with Ag nanoparticles