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Transmission electron microscopy of pili annulati [PDF]

open access: yesAnais Brasileiros de Dermatologia, 2022
Background: Little is known about the ultrastructure of pili annulati. Objectives: To examine with transmission electron microscopy affected hairs of a family, whose diagnosis had been confirmed in five individuals with scanning electron microscopy ...
Joice Brião Göebel Pinto   +3 more
doaj   +1 more source

Evaluation of threshold conditions for latent track formation in nanocrystalline Y2Ti2O7

open access: yesEurasian Journal of Physics and Functional Materials, 2022
We present the first report on the structural effects induced by swift xenon ions in nanocrystalline pyrochlore Y2Ti2O7 (outside the metal matrix) studied using high resolution transmission electron microscopy.
A. Ibrayeva   +7 more
doaj   +1 more source

Transmission Electron Microscopy [PDF]

open access: yesCompàs d'amalgama, 2020
This works aims at giving a general overview of transmission electron microscopy, from the beginnings of the technique in the 1930s to the latest technological advances and their relevance to current research. The focus is an attempt at explaining the different physical mechanisms that allow obtaining structural and compositional information from the ...
P.H. Greaves, B.P. Saville
  +5 more sources

Liquid cell transmission electron microscopy and its applications [PDF]

open access: yesRoyal Society Open Science, 2020
Transmission electron microscopy (TEM) has long been an essential tool for understanding the structure of materials. Over the past couple of decades, this venerable technique has undergone a number of revolutions, such as the development of aberration ...
Shengda Pu   +2 more
doaj   +1 more source

Improvement of structural quality of AlN layers grown on c-plane sapphire substrate by metal–organic vapor phase epitaxy using post-growth annealing with trimethylgallium

open access: yesAIP Advances, 2022
AlN layers were grown on a c-plane sapphire substrate by metal–organic vapor phase epitaxy (MOVPE) at 1350 °C. The structural quality of the grown AlN layers was drastically improved by post-growth annealing in mixed hydrogen, ammonia, and ...
Masataka Imura   +8 more
doaj   +1 more source

Analytical Transmission Electron Microscopy [PDF]

open access: yesReviews in Mineralogy and Geochemistry, 2014
Analytical transmission electron microscopy (TEM) is used to reveal sub-micrometer, internal fine structure (the microstructure or ultrastructure ) and chemistry in minerals. The amount and scale of the information which can be extracted by TEM depends critically on four parameters; the resolving power of the microscope (usually smaller than 0.3 nm ...
Brydson, R.   +3 more
openaire   +5 more sources

Coexisting multi-states in catalytic hydrogen oxidation on rhodium

open access: yesNature Communications, 2021
Catalytic reactions may exhibit oscillations in the reaction rate even at constant external parameters. Here, the authors observe and explain the coexistence of such oscillations and the steady states of catalytic activity in H2 oxidation on differently ...
P. Winkler   +9 more
doaj   +1 more source

Understanding electrochemical switchability of perovskite-type exsolution catalysts

open access: yesNature Communications, 2020
Exsolution, nanoparticle precipitation from oxide materials during reduction, offers a promising approach to heterogeneous catalysis. Here, authors examine the switching behavior between high and low activity and correlate the electro-catalytic activity ...
Alexander K. Opitz   +10 more
doaj   +1 more source

Transmission Electron Microscopy for Chemists [PDF]

open access: yesAccounts of Chemical Research, 2017
Guest Editorial for the Accounts of Chemical Research special issue on “Direct Visualization of Chemical and Self-Assembly Processes with Transmission Electron Microscopy”.
Eiichi Nakamura   +2 more
openaire   +2 more sources

How the anisotropy of surface oxide formation influences the transient activity of a surface reaction

open access: yesNature Communications, 2021
Surface oxide formation under reaction conditions may change the catalytic activity of a catalyst. Here, the authors explore the effect of atomic structure of Rh surfaces on the surface oxide formation and its influence on catalytic activity in hydrogen ...
P. Winkler   +7 more
doaj   +1 more source

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