Results 61 to 70 of about 78,467 (282)

Trends in Metal Oxide Stability for Nanorods, Nanotubes, and Surfaces

, 2010
The formation energies of nanostructures play an important role in determining their properties, including the catalytic activity. For the case of 15 different rutile and 8 different perovskite metal oxides, we find that the density functional theory ...
Bahn S. R., Bandura A., Bavykin D. V., Becke A. D., Beltrán A., Bengtsson L., Bligaard T., Calle-Vallejo F., Cheng Z., Chrétien S., D. J. Mowbray, Erisman J. W., F. Calle-Vallejo, Fujishima A., Gelatt C. D., Goodenough J. B., Grätzel M., Guerrini E., Hammer B., Heller A., Hemminger J., Hoffmann M. R., J. I. Martínez, J. K. Nørskov, J. Rossmeisl, Jiang B., K. S. Thygesen, K. W. Jacobsen, Khan S. U. M., Khaselev O., Marshall A., Martínez J. I., Monkhorst H. J., Mowbray D. J., Murphy J., Pankajavalli R., Perdew J. P., Perron H., Ranade M. R., Rogers D. B., Rossmeisl J., Schrott A. G., Smil V., Tafen D. N., Trasatti S., Valdés Á., Whitesides G. M., Yokokawa H.   +47 more
core   +1 more source

Chemical Vapor Deposition of silicon nanodots on TiO2 submicronic powders in vibrated fluidized bed [PDF]

, 2010
Silicon nanodots have been deposited on TiO2 submicronic powders in a vibrated Fluidized Bed Chemical Vapor Deposition (FBCVD) reactor from silane SiH4. Deposition conditions involving very low deposition rates have been studied. After treatment, powders
Cadoret, Loic, Caussat, Brigitte, Dexpert-Ghys, Jeannette, Rossignol, Cécile   +3 more
core   +3 more sources

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Scanning probe microscopy studies on the adsorption of selected molecular dyes on titania

Beilstein Journal of Nanotechnology, 2016
Titanium dioxide, or titania, sensitized with organic dyes is a very attractive platform for photovoltaic applications. In this context, the knowledge of properties of the titania–sensitizer junction is essential for designing efficient devices ...
Jakub S. Prauzner-Bechcicki, Lukasz Zajac, Piotr Olszowski, Res Jöhr, Antoine Hinaut, Thilo Glatzel, Bartosz Such, Ernst Meyer, Marek Szymonski   +8 more
doaj   +1 more source

Enhanced Photocatalytic Activity of {110}-Faceted TiO2 Rutile Nanorods in the Photodegradation of Hazardous Pharmaceuticals

Nanomaterials, 2018
Rutile TiO2 with highly active facets has attracted much attention owing to its enhanced activity during the photocatalytic degradation of pollutants such as pharmaceuticals in wastewater.
Tran Thi Thuong Huyen, Tran Thi Kim Chi, Nguyen Duc Dung, Hendrik Kosslick, Nguyen Quang Liem   +4 more
doaj   +1 more source

Phonon anharmonicity of rutile TiO_2 studied by Raman spectrometry and molecular dynamics simulations [PDF]

, 2012
Raman spectra of rutile titanium dioxide (TiO_2) were measured at temperatures from 100 to 1150 K. Each Raman mode showed unique changes with temperature. Beyond the volume-dependent quasiharmonicity, the explicit anharmonicity was large.
Fultz, Brent, Lan, Tian, Tang, Xiaoli
core  

Reconfigurable, Temperature Resilient Phase‐Change Metasurfaces Fabricated via High Throughput Nanoimprinting Lithography

Advanced Science, EarlyView.
ABSTRACT The combination of metasurfaces with chalcogenide phase‐change materials is a highly promising route toward the development of multifunctional and reconfigurable nanophotonic devices. However, their transition into real‐world devices is hindered by several technological challenges. This includes, amongst others, the lack of large area photonic
Carlota de Ruiz de Galarreta, Yinghao Zhao, Jose Mendoza‐Carreño, José M. Caicedo, José Santiso, C. David Wright, M. Isabel Alonso, Jiafang Li, Agustin Mihi   +8 more
wiley   +1 more source

Hydrogen motion in rutile TiO2 [PDF]

Scientific Reports, 2017
AbstractUniaxial-stress experiments have been performed for the 3287- and 2445-cm−1 local vibrational modes assigned to the positive charge state of interstitial hydrogen $$({{\rm{H}}}_{i}^{+})$$ ( H
Hupfer, A. J., Monakhov, E. V., Svensson, B. G., Chaplygin, I., Lavrov, E. V.   +4 more
openaire   +2 more sources

First-principles study of H intercalation in rutile TiO2

, 2004
Published ...
de Leeuw, SW, Harrison, NM, Koudriachova, MV   +2 more
core   +1 more source

Mechanical properties of ceria nanorods and nanochains; The effect of dislocations, grain-boundaries and oriented attachment [PDF]

, 2011
We predict that the presence of extended defects can reduce the mechanical strength of a ceria nanorod by 70%. Conversely, the pristine material can deform near its theoretical strength limit.
Agrawal, Ajay Karakoti, Amit Kumar, Anisimov, Balducci, Beverley J. Inkson, Blöchl, Brezesinski, Briston, Conesa, Dean C. Sayle, Di Monte, Du, Dudarev, Feng, Gale, Günter Möbus, Han, Hirst, Hoover, Humphrey, Karakoti, Kresse, Kresse, Kresse, Kulkarni, Lewis, Li, Liu, Lockwood, Marco Molinari, Martin, Mobus, Mogensen, Nolan, Peng, Perdew, Reid, Rossinyol, Saghi, Sangthong, Sayle, Sayle, Sayle, Sayle, Scanlon, Stephen C. Parker, Sudipta Seal, Suresh, Thi X. T. Sayle, van Huis, Vantomme, Walker, Wang, Wang, Wang, Watson, Yamakov, Zhang, Zhu   +59 more
core   +1 more source