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Relevant bibliographies by topics / Niobium(V) oxide

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Academic literature on the topic 'Niobium(V) oxide'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Niobium(V) oxide"

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Störmer, H., E. Ivers-Tiffée, C. Schnitter, and D. Gerthsen. "Microstructure and dielectric properties of nanoscale oxide layers on sintered capacitor-grade niobium and V-doped niobium powder compacts." International Journal of Materials Research 97, no. 6 (2006): 794–801. http://dx.doi.org/10.1515/ijmr-2006-0128.

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Abstract Electrolytic anodization was used to form amorphous niobium oxide layers on niobium and V-doped niobium powder compacts which act as dielectric layers, e. g. in niobium-based solid electrolyte capacitors. The microstructure development within the layered structure niobium-niobium oxide was studied by scanning- and transmission electron microscopy in order to investigate the influence of processing parameters. It could be shown that the thickness as well as the quality of the oxide layers on niobium vary in a considerable range, depending on processing parameters. Examination of the in

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Zhang, Bo, Shuiqing Yu, Yudong Liang, and Maofa Jiang. "Electrochemical Behavior of Niobium Oxide and Titanium Oxide in NaF–Na3AlF6 Molten Salt." Metals 14, no. 3 (2024): 297. http://dx.doi.org/10.3390/met14030297.

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The Bayan Obo ore deposit is a world-renowned polymetallic coexistence mine that integrates important elements, such as rare earths, iron, niobium, and titanium. The chemical properties of niobium and titanium are similar, and the two often coexist in the Bayan Obo deposit as isomorphs, making them difficult to separate. Therefore, the separation of niobium and titanium is crucial for the efficient utilization of niobium resources in the Bayan Obo ore deposit of China. To discuss the feasibility of separating niobium and titanium by selective electrolysis, cyclic voltammetry and square wave vo

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Golubeva, N. K., D. P. Danilovich, D. D. Nesmelov, and I. D. Shabalkin. "PREPARATION OF NIOBIUM (V) OXIDE WITH CONTROLLED DISPERSITY AND MORPHOLOGY." Steklo i Keramika, no. 1 (January 2022): 31–38. http://dx.doi.org/10.14489/glc.2022.01.pp.031-038.

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In this work, the effect of the annealing temperature and the chemical history of the precipitate on the morphology and phase composition of the Nb2O5 powder was studied. Nb2O5nH2O precipitate and gel-like niobium citrate were obtained by solution methods. The synthesis of niobium oxide was carried out at temperatures of 600, 1000, and 1200 °C, the synthesis products were analyzed using X-ray diffraction, scanning electron microscopy, X-ray microscopy, and differential thermal and thermogravimetric analysis. Annealing of niobium citrate at a temperature of 600 °C makes it possible to obtain ni

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Vukićević, Nataša M., Vesna S. Cvetković, Ljiljana S. Jovanović, Olga S. Radulović, and Jovan N. Jovićević. "Electrodeposition of Nb and Al from chloroaluminate melt on vitreous carbon." Metallurgical and Materials Engineering 22, no. 2 (2016): 91–100. http://dx.doi.org/10.30544/217.

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Niobium and aluminium were electrodeposited at 200 °C under argon atmosphere onto vitreous carbon from inorganic chloroaluminate melts (AlCl3+NaCl) with added niobium. Niobium was introduced into the electrolyte by anodic dissolution of metallic niobium or by chemical dissolution of Nb2O5 in a melt of equimolar AlCl3+NaCl mixture. The processes of deposition/dissolution onto/from vitreous carbon were investigated by cyclic voltammetry and chronoamperometry. Characterization of the obtained deposits was done by Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). The onl

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Canepa, Paolo, Giuseppe Firpo, Elena Gatta, et al. "A Two-Step Approach to Tune the Micro and Nanoscale Morphology of Porous Niobium Oxide to Promote Osteointegration." Materials 15, no. 2 (2022): 473. http://dx.doi.org/10.3390/ma15020473.

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We present a two-step surface modification process to tailor the micro and nano morphology of niobium oxide layers. Niobium was firstly anodized in spark regime in a Ca- and P-containing solution and subsequently treated by acid etching. The effects of anodizing time and applied potential on the surface morphology is investigated with SEM and AFM, complemented by XPS compositional analysis. Anodizing with a limiting potential of 250 V results in the fast growth of oxide layers with a homogeneous distribution of micro-sized pores. Cracks are, however, observed on 250 V grown layers. Limiting th

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Feliczak-Guzik, Agnieszka, Agata Wawrzyńczak, and Izabela Nowak. "Photocatalysis by Mixed Oxides Containing Niobium, Vanadium, Silica, or Tin." Catalysts 15, no. 2 (2025): 118. https://doi.org/10.3390/catal15020118.

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Nb-Sn, V-Sn mixed-metal oxides and Nb-Si, V-Si metal oxide–silicas were successfully synthesized through a “soft” templating method, in which appropriate amounts of metal salts (either niobium(V) chloride, or vanadium(IV) oxide sulfate hydrate or tin(II) chloride dihydrate) or tetraethyl orthosilicate (TEOS) were mixed with hexadecyltrimethylammonium chloride (HDTA) or sodium dodecyl sulfate (SDS) solutions to obtain a new series of mesoporous oxides, followed by calcination at different temperatures. As-obtained samples were characterized by SEM, TEM, XRD, and UV-Vis spectra techniques. The p

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Ficarro, Scott B., Jignesh R. Parikh, Nathaniel C. Blank, and Jarrod A. Marto. "Niobium(V) Oxide (Nb2O5): Application to Phosphoproteomics." Analytical Chemistry 80, no. 12 (2008): 4606–13. http://dx.doi.org/10.1021/ac800564h.

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Ryshchenko, Igor, Larisa Lyashok, Alexey Vasilchenko, Artem Ruban, and Leonid Skatkov. "Electrochemical Synthesis of Crystalline Niobium Oxide." Materials Science Forum 1038 (July 13, 2021): 51–60. http://dx.doi.org/10.4028/www.scientific.net/msf.1038.51.

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Features of creation of porous nanostructured oxides of transition materials on an example of niobium are considered. It has been experimentally shown that variation in anodizing modes makes it possible to obtain non-porous and porous amorphous anodic oxide films (AOF) and films of the crystalline type. It is determined that the process of AOF formation on niobium, as well as its structure and properties depend on such parameters as the type of electrolyte, anodizing voltage, activator concentration, the duration of the process. It is confirmed that the presence of an activator in the electrol

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Wang, Fan, Zheng Zhang, Guizhi Xiao, and Dening Zou. "Effects of Vanadium and Niobium on the Mechanical Properties and High-Temperature Oxidation Behavior of Austenitic Stainless Steels." Metals 15, no. 4 (2025): 347. https://doi.org/10.3390/met15040347.

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This study focuses on the effects of vanadium and niobium microalloying elements on the mechanical properties and high-temperature oxidation behavior of austenitic stainless steels. Vanadium–niobium elements were confirmed to play an effective role in fine-grain strengthening at room temperature, achieving a tensile strength and yield strength of approximately 768.8 MPa and 464.6 MPa, respectively, with the additions of 0.32 wt% V and 0.21 wt% Nb. During the high-temperature oxidation process, the weight gain and cracking of the oxide layer increased with increasing niobium–vanadium content. T

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Горох, Г. Г., А. Н. Плиговка та А. А. Лозовенко. "Столбиковые ниобиевые оксидные наноструктуры: механизм образования, микроструктура и электрофизические свойства". Журнал технической физики 89, № 11 (2019): 1747. http://dx.doi.org/10.21883/jtf.2019.11.48339.146-19.

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The morphology and microstructure of the columnar niobium oxide nanostructures were investigated. The dependences of their morphological sizes on the anodization voltages (100–450 V) and anodic alumina pore diameters (40–150 nm) were established. The features of ion transfer in the process of niobium local anodizing were investigated and the transport numbers of electrolyte anions and niobium cations were calculated. The formation and growth mechanism was proposed and discussed. The phase composition and electrophysical properties of the column nanostructures were investigated.

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Dissertations / Theses on the topic "Niobium(V) oxide"

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Denofre, Silvia. "Oxido de niobio (V) enxertado sobre silica gel : estabilidade termica, acidez e reatividade de especies absorvidas." reponame:Repositório Institucional da UFSC, 1994. http://repositorio.ufsc.br/handle/123456789/101491.

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Campos, Elvio Antonio de. "Preparação e caracterização de compositos hibridos organico/inorganico a partir de celulose e oxido de niobio (V)." [s.n.], 1998. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249656.

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Orientador: Yoshitaka Gushiken<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-07-23T14:33:11Z (GMT). No. of bitstreams: 1 Campos_ElvioAntoniode_D.pdf: 3674941 bytes, checksum: 5d84f150bd6be58ce90e9830b19ee163 (MD5) Previous issue date: 1998<br>Doutorado

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Lagnel, Florence. "Étude des solutions solides amorphes (Ti, Nb)O₂ et (Ti, V)O₂ : élaboration, propriétés structurales, absorption X et transport électronique : comparaison avec les phases cristallines associées." Paris 11, 1988. http://www.theses.fr/1988PA112166.

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Ce travail a pour objet l'étude de films d'oxydes Ti-x Nbx O₂ et Ti -x Vx O₂ amorphes (0 ≤x ≤ 1) obtenus par pulvérisation cathodique R. F. La première partie traite de l'élaboration et de la caractérisation chimique des dépôts amorphes. Une analyse des différents paramètres de la pulvérisation nous a permis d'optimiser le protocole expérimental de fabrication des couches. Nous avons ensuite déterminé les propriétés structurales de ces matériaux après recuit : identification des phases apparaissant au-dessus de la température de transition amorphe →cristal et caractérisation de la microstructu

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Books on the topic "Niobium(V) oxide"

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Pakhomovskiĭ, I︠A︡. A. (I︠A︡kov Alekseevich) та Belʹkov Igorʹ Vladimirovich, ред. Mineralogii︠a︡ tantala i niobii︠a︡ v redkometallʹnykh pegmatitakh. "Nauka," Leningradskoe otd-nie, 1988.

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