Results 21 to 30 of about 3,881,838 (283)
Coexisting multi-states in catalytic hydrogen oxidation on rhodium
Nature 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
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Understanding electrochemical switchability of perovskite-type exsolution catalysts
Nature 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
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Biomedical and biological applications of scanning electron microscopy [PDF]
, 2012 Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166This article summarizes the basic principles of scanning electron microscopy and the capabilities of the technique with different examples of applications in biomedical and biological ...
Cortadellas i Raméntol, Núria +2 more
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Analytical Transmission Electron Microscopy [PDF]
Reviews 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 +4 more sources
Nature 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
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Transfer of tilted sample information in transmission electron microscopy [PDF]
, 2010 When a transmission electron microscope is used in imaging mode, information carried by the sample function is transformed by the optics of the instrument during the imaging process.
Mariani, Valerio
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Beilstein Journal of Nanotechnology, 2021 Platinum–carbon catalysts are widely used in the manufacturing of proton-exchange membrane fuel cells. Increasing Pt/C activity and stability is an urgent task and the optimization of their structure seems to be one of the possible solutions.
Kirill O. Paperzh +5 more
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Transmission electron microscopy with in situ ion irradiation [PDF]
, 2015 The macroscopic properties of materials exposed to irradiation are determined by radiation damage effects which occur on the nanoscale. These phenomena are complex dynamic processes in which many competing mechanisms contribute to the evolution of the ...
Hinks, Jonathan Andrew, Hinks, J. A.
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Transmission and scanning electron microscopy of cutis rhomboidalis
Anais Brasileiros de Dermatologia, 2021 Cutis rhomboidalis nuchae was assessed in a 65-year-old patient. Optical microscopy showed basophilic agglomerations in the reticular dermis with decreased elastic fibers.
Ângela Faistauer Torre +3 more
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A cross-sectional transmission electron microscopy study of iron recovered from a laser-heated diamond anvil cell [PDF]
, 2008 This paper discusses the use of a focused ion beam for the preparation of cross-sectional transmission electron microscopy specimens from small samples, typically 150 micron in diameter, that have been recovered from a laser-heated diamond anvil cell. We
Greaves, Graeme +3 more
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