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Electrodeposited ultrafine TaOx/CB catalysts for PEFC cathode application: Their oxygen reduction reaction kinetics

Publication

Electrochimica Acta

Seo, J.; Anjum, D. H.; Takanabe, K.; Kubota, J.; Domen, K.

Ultrafine TaOx nanoparticles were electrodeposited on carbon black (CB) powder in a nonaqueous Ta complex solution at room temperature, and the resultant TaOx/CB catalysts were assessed as oxygen reduction reaction (ORR) electrocatalysts for polymer electrolyte fuel cell (PEFC) cathodes.
Molecular insights of oxidation process of iron nanoparticles: spectroscopic, magnetic and microscopic evidences

Publication

Environmental Science and Technology

Kumar , N.; Auffan, M.; Gattacceca, J.; Rose, J.; Olivi, L.; Borschneck, D.; Kvapil, P.; Jublot, M.; Kaifas, D.; Malleret, L.; Doumenq, P.; Bottero, J. Y.

Oxidation behavior of nano-Fe0 particles in anoxic environment was determined using different state-of-the-art analytical approaches including high resolution transmission electron microscopy (HR-TEM) combined with energy-filtered transmission electron microscopy (EFTEM), X-ray absorption spectro
Identifying suboxide grains at the metal–oxide interface of a corroded Zr–1.0%Nb alloy using (S)TEM, transmission-EBSD and EELS

Publication

Micron

Hu, J.; Garner, A.; Nic, N.; Gholinia, A.; Nicholls, R.; Lozano-Perez, S.; Frankel, P.; Preuss, M.; Grovenor, C.

Here we report a methodology combining TEM, STEM, Transmission-EBSD and EELS to analyse the structural and chemical properties of the metal–oxide interface of corroded Zr alloys in unprecedented detail.
Bilayer graphene formed by passage of current through graphite: evidence for a three-dimensional structure

Publication

Nanotechnology

Harris, P. J. F.; Slater, T. J. A.; Haigh, S. J.; Hage, F. S.; Kepaptsoglou, D. M.; Ramasse, Q. M.; Brydson, R.

The passage of an electric current through graphite or few-layer graphene can result in a striking structural transformation, but there is disagreement about the precise nature of this process.
Single molecular spectroscopy: Identification of individual fullerene molecules

Publication

Physical Review Letters

Tizei, L. H. G.; Liu, Z.; Koshino, M.; Iizumi, Y.; Okazaki, T.; Suenaga, K.

We report the molecule-by-molecule spectroscopy of individual fullerenes by means of electron spectroscopy based on scanning transmission electron microscopy.
Uranium trioxide behaviour during electron energy loss spectroscopy analysis

Publication

Radiation Physics and Chemistry

Degueldre, C.; Alekseev, E.

A sample of uranium trioxide (UO3) was produced by focused ion beam (~10 μm x ~10 μm x
Nanoscale voxel spectroscopy by simultaneous EELS and EDS tomography

Publication

Nanoscale

Haberfehlner, G.; Orthacker, A.; Albu, M.; Li, J.; Kothleitner, G.

Extending the capabilities of electron tomography with advanced imaging techniques and novel data processing methods, can augment the information content in three-dimensional (3D) reconstructions from projections taken in the transmission electron microscope (TEM).
Joint EELS–EDS spectrum imaging for fast-mapping and atomic scale analysis

Media Video

The complementary nature of electron energy loss spectroscopy (EELS) and energy dispersive spectroscopy (EDS) signals makes it highly desirable to acquire both during transmission electron microscope (TEM) investigations of materials.
Optimizing STEM spectrum image acquisition for high speed analysis

Media Video

STEM EELS spectrum imaging can reveal composition and chemical changes at the nanoscale and even the atomic scale in many cases. To reveal this information, the researcher needs to optimize not only the spectrometer, but also the sample and the STEM configuration.
Fast STEM spectrum imaging using simultaneous EELS and EDS

Publication

Microscopy Today

Longo, P.; Twesten, R.

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