Results 11 to 20 of about 249,243 (285)

Formation of niobium oxides by electrolysis from acidic aqueous solutions on glassy carbon [PDF]

Macedonian Journal of Chemistry and Chemical Engineering, 2019
In this study niobium oxide films were formed without peroxo-precursors from three different mixed acidic aqueous solutions on glassy carbon. Linear sweep voltammetry and potential step were techniques used for electrochemical experiments.
Nataša M Vukićević, Vesna S Cvetković, Ljiljana S Jovanović, Miroslav M Pavlović, Jovan N Jovićević   +4 more
doaj   +2 more sources

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

Raman spectra of niobium oxides

, 1976
Raman spectra of various types of niobium oxides have been studied along with their i.r. spectra and the spectra interpreted in the light of the structures of the oxides.
McConnell, A.Ann, J.S. Aderson, C.N.R. Rao, A.Ann McConnell, Rao, C.N.R., Anderson, J.S., Ann McConnell, A., Aderson, J. S., Rao, C. N. R.   +8 more
core   +4 more sources

Wadsley–Roth Crystallographic Shear Structure Niobium‐Based Oxides: Promising Anode Materials for High‐Safety Lithium‐Ion Batteries

Advanced Science, 2021
Wadsley–Roth crystallographic shear structure niobium‐based oxides are of great interest in fast Li+ storage due to their unique 3D open tunnel structures that offer facile Li+ diffusion paths.
Yang Yang, Jinbao Zhao
doaj   +1 more source

Photodegradation of Organic Pollutants in Seawater and Hydrogen Production via Methanol Photoreforming with Hydrated Niobium Pentoxide Catalysts

Sustainable Chemistry, 2022
In this work, the photocatalytic activity of Hydrated Niobium Pentoxide (synthesized by a simple and inexpensive method) was explored in two unknown reactions reported for this catalyst: the photodegradation of phenol in seawater and the photoreforming ...
Yvan J. O. Asencios, Vanessa A. Machado
doaj   +1 more source

Physicochemical Effects of Niobic Acid Addition Into Dental Adhesives

Frontiers in Materials, 2021
The incorporation of metallic oxides in dental adhesives has been a strategy to confer improved radiopacity and physicochemical properties for polymers.
Isadora Martini Garcia, Vicente Castelo Branco Leitune, Gabrielade Souza Balbinot, AbdulRahman A. Balhaddad, AbdulRahman A. Balhaddad, Mary Anne S. Melo, Mary Anne S. Melo, Susana Maria Werner Samuel, Fabrício Mezzomo Collares   +8 more
doaj   +1 more source

Electrospun niobium oxide 1D nanostructures and their applications in textile industry wastewater treatment [PDF]

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2023
Textile industry emits daily huge amounts of sewage rich in non-biodegradable organic compounds, especially in textile dyes. Such contaminants are highly soluble in water, which makes their removal difficult.
Marta Zaborowska, Weronika Smok, Tomasz Tański   +2 more
doaj   +1 more source

Understanding mechanism of performance improvement in nitrogen-doped niobium superconducting radio frequency cavity

Materials Research Letters, 2023
Niobium superconducting radiofrequency cavities enable applications in modern accelerators and quantum computers. However, the surface resistance significantly deteriorates the cavities’ performance.
Xiaotian Fang, Jin-Su Oh, Matt Kramer, A. Romanenko, A. Grassellino, John Zasadzinski, Lin Zhou   +6 more
doaj   +1 more source

Understanding the behaviour of a niobium oxide cathode in a molten chloride bath using different DC voltammetric techniques

Electrochemistry Communications, 2023
The electro-deoxidation of metal oxides has been presented as an alternative to the pyro- and electro-metallurgical techniques generally used to create metals and alloys.
Heba Mashaal, Ahmed Abdelkarim, Ahmed Dawood, Hussein Abd El-Aziz, Hany Gamal, Abd Allh M. Abd El-Hamid, Hamed Mira, Amr M. Abdelkader   +7 more
doaj   +1 more source

Ti-Nb Mineralization of Late Carbonatites and Role of Fluids in Its Formation: Petyayan-Vara Rare-Earth Carbonatites (Vuoriyarvi Massif, Russia)

Geosciences, 2018
This article is devoted to the geology of titanium-rich varieties of the Petyayan-Vara rare-earth dolomitic carbonatites in Vuoriyarvi, Northwest Russia. Analogues of these varieties are present in many carbonatite complexes. The aim of this study was to
Evgeniy Kozlov, Ekaterina Fomina, Mikhail Sidorov, Vladimir Shilovskikh   +3 more
doaj   +1 more source