Novel Sub‐5 nm Layered Niobium Phosphate Nanosheets for High‐Voltage, Cation‐Intercalation Typed Electrochemical Energy Storage in Wearable Pseudocapacitors
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Energy Materials"
DOI: 10.1002/aenm.201900111
Abstract: Layered niobium phosphates have been considered very promising energy storage materials because of their high theoretical operating voltage window and the rich oxidation states of niobium. However, their development has been stymied by the phase‐controlled… read more here.
Keywords: energy; cation intercalation; niobium phosphate; layered niobium ... See more keywords
Thermodynamic Simulation of Niobium-Containing Austenitic Stainless Steels: Microstructure and Corrosion Properties
Sign Up to like & getrecommendations! Published in 2019 at "Transactions of the Indian Institute of Metals"
DOI: 10.1007/s12666-019-01642-y
Abstract: AbstractIn the present work, as cast niobium (Nb) alloyed (0.66 wt%, 1 wt% and 1.75 wt% of Nb) austenitic stainless steels were solution annealed and sensitized at 550 °C, 650 °C and 750 °C for a period of… read more here.
Keywords: niobium; corrosion properties; austenitic stainless; corrosion ... See more keywords
Corrosion Resistance of Niobium-Coated Carbon Steel
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Bio- and Tribo-Corrosion"
DOI: 10.1007/s40735-018-0201-9
Abstract: In this work, the effectiveness of niobium coatings for the corrosion protection of carbon steel was studied. Three niobium resins, containing different molar proportions of citric acid:ethylene glycol, were coated separately onto samples of carbon… read more here.
Keywords: niobium; corrosion; niobium coated; carbon steel ... See more keywords
Influence of Niobium Content on the Mechanical Properties and Abrasion Wear Resistance of Heat-Treated High-Chromium Cast Iron
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Metalcasting"
DOI: 10.1007/s40962-020-00474-7
Abstract: The effect of niobium addition up to 3.4 wt% on the microstructure and mechanical properties of heat-treated high-Cr cast iron containing 13.5 wt% Cr was investigated. Niobium addition caused small hard NbC particles to precipitate within the… read more here.
Keywords: wear resistance; niobium; mechanical properties; cast iron ... See more keywords
Correlation of splat state with deposition characteristics of cold sprayed niobium coatings
Sign Up to like & getrecommendations! Published in 2017 at "Acta Materialia"
DOI: 10.1016/j.actamat.2017.03.023
Abstract: Abstract The cold spray technique has a great potential to deposit refractory metals for a variety of potential applications. Cold spraying of different metals have been addressed comprehensively to understand the deposition characteristics of the… read more here.
Keywords: sprayed niobium; characteristics cold; niobium; deposition ... See more keywords
The effect of sodium hydroxide on niobium carbide precipitates in thermally sensitised 20Cr-25Ni-Nb austenitic stainless steel
Sign Up to like & getrecommendations! Published in 2020 at "Corrosion Science"
DOI: 10.1016/j.corsci.2020.108596
Abstract: Abstract Niobium-stabilised austenitic stainless steel (20Cr-25Ni-Nb) has been immersed in sodium hydroxide, which is used as a corrosion inhibitor. The work shows how NbC precipitates may be degraded by use of pH 13 NaOH. Initial… read more here.
Keywords: niobium; austenitic stainless; stainless steel; corrosion ... See more keywords
A novel method for the separation of niobium and titanium from sulfuric acid-oxalate solutions using N235 and MIBK
Sign Up to like & getrecommendations! Published in 2021 at "Hydrometallurgy"
DOI: 10.1016/j.hydromet.2021.105748
Abstract: Abstract Niobium consumption has burgeoned owing to the increasing application of niobium in critical industries, including the aerospace and oil and gas industries. Conventional metallurgical technologies and separation methods for niobium extraction use highly concentrated… read more here.
Keywords: extraction; using n235; mibk; niobium ... See more keywords
Niobium-added titanium oxides powders as non-noble metal cathodes for polymer electrolyte fuel cells – Electrochemical evaluation and effect of added amount of niobium
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2019.08.217
Abstract: Abstract An appropriate evaluation of oxide-based compound powders as non-platinum cathodes for polymer electrolyte fuel cells is required to investigate the active sites of oxide-based cathodes for the oxygen reduction reaction. A mixture of carbon… read more here.
Keywords: niobium; orr; titanium oxides; added titanium ... See more keywords
Segregation effects of Y, Ti, Cr and Si on the intergranular fracture of niobium
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2017.03.358
Abstract: Abstract The intergranular fracture of materials is sensitive to the grain-boundary segregation of solutes, which is not yet clear for niobium alloys, a vital promising high-temperature material in the aerospace industry. In this study, first-principles… read more here.
Keywords: effects intergranular; segregation effects; niobium; segregation ... See more keywords
The influence of nitrogen pressure on formation of niobium nitride by thermal processing
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2018.02.304
Abstract: Abstract The nitridation of niobium by thermal processing at 1300 °C in different nitrogen (N2) gas pressures ranging from 2.6 × 10−4 to 3.3 × 100 Pa was investigated. The NbNx films were grown on the niobium substrate by reactive thermal… read more here.
Keywords: phase; thermal processing; niobium; formation ... See more keywords
Niobium increasing the electrocatalytic activity of palladium for alkaline direct ethanol fuel cell
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Electroanalytical Chemistry"
DOI: 10.1016/j.jelechem.2020.113824
Abstract: Abstract Palladium and niobium in 1: 0, 3: 1, 2: 1 and 1: 1 carbon black electrocatalysts, respectively, were prepared by a chemical reduction method. The Pd1Nb1/C electrocatalyst showed a maximum power density of 27 mW cm−2… read more here.
Keywords: fuel cell; niobium; electrocatalytic activity; ethanol ... See more keywords