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Showing 151-160 of 180

Emission color mapping of white-luminescent mesoporous carbon-silica nanocomposite

Publication

18th International Microscopy Congress

Muto, S. Sato, K.; Ishikawa, Y.; Bosman, M.; Ishii, Y.; Kawasaki, S.

Luminescent materials widely used for optical devices, such as light-emitting-diode, plasma display and liquid crystal display rely on the inner-shell transition of rare earth (RE) elements. Unstable RE supply, however, accelerates the importance for developing RE-free luminescent materials.
Active phase distribution changes within a catalyst particle during Fischer–Tropsch synthesis as revealed by multi-scale microscopy

Publication

Catalysis Science & Technology

Cats, K. H.; Andrews, J. C.; Stéphan, O.; March, K.; Karunakaran, C.; Meirer, F.; de Groot, F. M. F.; Weckhuysen, B. M.

The Fischer–Tropsch synthesis (FTS) reaction is one of the most promising processes to convert alternative energy sources, such as natural gas, coal or biomass, into liquid fuels and other high-value products.
Role of C–N configurations in the photoluminescence of graphene quantum dots synthesized by a hydrothermal route

Publication

Scientific Reports

Permatasari, F. A.; Aimon, A. H.; Iskandar, F.; Ogi, T.; Okuyama, K.

Graphene quantum dots (GQDs) containing N atoms were successfully synthesized using a facile, inexpensive, and environmentally friendly hydrothermal reaction of urea and citric acid, and the effect of the GQDs’ C–N configurations on their photoluminescence (PL) properties were investigated.
Alkoxide-intercalated NiFe-layered double hydroxides magnetic nanosheets as efficient water oxidation electrocatalysts

Publication

Inorganic Chemistry

Carrasco, J. A.; Romero, J.; Varela, M.; Hauke, F.; Abellán, G.; Hirsch, A.; Coronado, E.

Alkoxide-intercalated NiFe-layered double hydroxides were synthesized via the nonaqueous methanolic route. These nanoplatelets exhibit high crystalline quality as demonstrated by atomic resolution scanning transmission electron microscopy combined with electron energy-loss spectroscopy.
Co–Cu nanoparticles: Synthesis by galvanic replacement and phase rearrangement during catalytic activation

Publication

Langmuir

Nafria, R.; Genç, A.; Ibáñez, M.; Arbiol, J.; de la Piscina, P. R.; Homs, N.; Cabot, A.

The control of the phase distribution in multicomponent nanomaterials is critical to optimize their catalytic performance.
Atomic and electronic structure of twin growth defects in magnetite

Publication

Scientific Reports

Gilks, D.; Nedelkoski, Z.; Lari, L.; Kuerbanjiang, B.; Matsuzaki, K.; Susaki, T.; Kepaptsoglou, D.; Ramasse, Q.; Evans, R.; McKenna, K.; Lazarov, V. K.

We report the existence of a stable twin defect in Fe3O4 thin films. By using aberration corrected scanning transmission electron microscopy and spectroscopy the atomic structure of the twin boundary has been determined.
Fundamentals of electron energy-loss spectroscopy

Publication

EMAS 2015 Workshop

Hofer, F.; Schmidt, F. P.; Grogger W.; Kothleitner, G.

Electron energy-loss spectroscopy (EELS) is an analytical technique that is based on inelastic scattering of fast electrons in a thin specimen. In a transmission electron microscope (TEM) it can provide structural and chemical information about a specimen, even down to atomic resolution.
Heterogeneous diamond phases in compressed graphite studied by electron energy-loss spectroscopy

Publication

Diamond and Related Materials

Sato, Y.; Bugnet, M.; Terauchi, M.; Botton, G. A.; Yoshiasa, A.

Chemical mapping imaged by electron energy-loss spectroscopy based on scanning transmission electron microscopy was conducted on a compressed graphite specimen containing different carbon allotropes (hexagonal diamond, cubic diamond, and graphite phases).
The role of intergranular chromium carbides on intergranular oxidation of nickel based alloys in pressurized water reactors primary water

Publication

EMAS 2015 Workshop

Gaslain, F. O. M.; Le, H. T.; Duhamel, C.; Guerre, C.; Laghoutaris, P.

Alloy 600 is used in pressurized water reactors (PWRs) but is susceptible to primary water stress corrosion cracking (PWSCC). Intergranular chromium carbides have been found beneficial to reduce PWSCC.
Rectifying electrical contacts to n- type 6H-SiC formed from energetically deposited carbon

Publication

Carbon

Kracica, M.; Mayes, E. L. H.; Tran, H. N.; Holland, A. S.; McCulloch, D. G.; Partridge, J. G.

Electrical contacts to n-type 6H-SiC deposited from carbon fluxes with differing energies (0.12 – 1.0 keV) have exhibited deposition energy dependent microstructural and electrical properties.

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