Results 11 to 20 of about 92,344 (249)

Sputtered Niobium Pentoxide Layers for Optical Applications

Thin Solid Films
The use of pulsed DC magnetron sputtered niobium pentoxide as a high index material in optical devices as Anti-Reflecting Coating (ARC) and optical filters has been investigated. When deposited on a silicon substrate with native oxide, the few nanometers of niobium pentoxide were optically distinct from the rest of the niobium pentoxide layer, effect ...
Massoni, N., Nistor, L.E., Licitra, C., Nolot, E., Rodriguez, G.   +4 more
semanticscholar   +4 more sources

Experimental and statistical study for leaching of niobium pentoxide from Pakistani ore [PDF]

Chemical Industry and Chemical Engineering Quarterly, 2018
The growing demand for niobium pentoxide, based on its use in separation processes, established its prominent significance as a leading candidate in the field of separation science and technology.
Irfan Muhammad, Ahmad Muhammad Imran, Akhtar Sadia, Khan Muhammad Alam Zaib, Khan Muhammad Asif   +4 more
doaj   +3 more sources

Magnetic Fluctuations in Niobium Pentoxide

, 2023
Using a spin-polarized muon beam we were able to capture magnetic dynamics in an amorphous niobium pentoxide thin film. Muons are used to probe internal magnetic fields produced by defects. Magnetic fluctuations could be described by the dynamical Kubo-Toyabe model considering a time-dependent local magnetic field.
Krasnikova, Y., Murthy, A. A., Crisa, F., Bal, M., Sung, Z., Lee, J., Cano, A., van Zanten, D. M. T., Romanenko, A., Grassellino, A., Suter, A., Prokscha, T., Salman, Z.   +12 more
openaire   +3 more sources

Development of a microwave absorbing material based on molybdenum-doped niobium pentoxide

Cerâmica
This work aimed to perform the characterization of electrical properties of niobium pentoxide, Nb2O5, pure and doped with molybdenum, prepared by powder metallurgy route and to do a comparative analysis of the influence of this material when sintered in ...
D. P. Gurgel, I. S. Queiroz Jr., M. Q. da Silva Jr., H. D. de Andrade, U. U. Gomes, M. M. Karimi   +5 more
doaj   +2 more sources

Niobium Pentoxide as an Acid Catalyst: An Overview

The Journal of Engineering and Exact Sciences
The global chemical industry is under increasing pressure to adopt more sustainable practices, as most chemical products exceed environmental safety limits. Given that chemical production largely relies on catalytic processes, the development of solid acid catalysts has become crucial for more sustainable production.
Ana Paula de Melo Guedes, Débora Luísa Rosendo Tomé De Miranda, Amanda Duarte Gondim, Claudio Gabriel Lima Junior   +3 more
openaire   +2 more sources

Sol-gel niobium pentoxide coatings: Applications to photovoltaic energy conversion and electrochromism [PDF]

International Journal of Photoenergy, 2002
In the last decade the sol-gel process became a promising method to synthesize materials in form of coatings, nanoscale powders and porous systems. Several products or devices made with such a process already exist on the market.
Michel A. Aegerter, Michael Schmitt, Yeping Guo   +2 more
doaj   +2 more sources

pH treatment on the optical and structural properties of niobium vanadium pentoxide nanoparticles for optoelectronics and energy storage applications

African Scientific Reports
In this work, vanadium pentoxide is doped with niobium (Nb) particles using co-precipitation technique and effect of pH in alkaline medium was examined. The impact of pH on the optical, chemical, luminescence, morphological and structural characteristics
Abideen Ibiyemi, J. I. Lawal, S. K. Aminu, A. G. Adewole, B. M. Akinroye, A. C. Adeniran, O. A. Abulude   +6 more
doaj   +2 more sources

Green Magnetic Nanoparticles CoFe₂O₄@Nb₅O₂ Applied in Paracetamol Removal

Magnetochemistry, 2023
This study describes the synthesis of an innovative nanomaterial (patent application number BR 1020210000317) composed of cobalt ferrite functionalized in niobium pentoxide CoFe2O4@Nb5O2 (CFNb), synthesized via green synthesis using tangerine peel ...
Jessica R. P. Oliveira, Laura S. Ribas, Jose S. Napoli, Eduardo Abreu, Jose L. Diaz de Tuesta, Helder T. Gomes, Angelo M. Tusset, Giane G. Lenzi   +7 more
doaj   +1 more source

Influence of structural and surface properties of Nb2O5 pellets on methylene blue adsorption and adsorbent reuse capacity [PDF]

Cerâmica, 2023
This study aimed to describe the preparation of Nb2O5 pellets by uniaxial pressing, to investigate the influence of heat treatment at different temperatures (800, 900, and 1000 °C) on the physical, surface, microstructural, and adsorptive properties of ...
A. L. dos Santos, Á. L. S. do Amaral, C. R. S. Souza, D. C. Batista, E. C. Paris, A. T. de Figueiredo, T. R. Giraldi   +6 more
doaj   +1 more source

RF and Surface Properties of Bulk Niobium and Niobium Film Samples [PDF]

, 2012
The surface resistance Rs of superconducting cavities can be obtained from the unloaded quality factor Q0. Since RS varies strongly over the cavity surface its value must be interpreted as averaged over the whole cavity surface.
Weingarten, W., Junginger, T., Welsch, C., Welsch, Carsten, Seviour, Rebecca, Weingarten, Wolfgang, Junginger, Tobias   +6 more
core   +3 more sources