Niobium disulfide Powder

Princeton Powder is a leading supplier of high-purity Niobium Disulfide ceramic powder. We offer Niobium Disulfide in micron sizes or customized particle sizes to meet customer specifications. Our Niobium Disulfide powder features a large specific surface area, making it ideal for coating applications and improving adhesion and durability.

Niobium powders including C103 Niobium Hafnium Alloy Spherical Powder, Niobium Carbide Powder, Niobium Nitride Powder, and Niobium Silicide NbSi2 Powder are for sale at a competitive price.

Formula	Niobium Disulfide, NbS2
CAS Number	12136-97-9
Purity	99.5% min
Synonyms	Niobium Disulfide powder, Niobium Disulfide refractory powder, Niobium Disulfide thermal spray powder, Niobium Disulfide ceramic Powder
Particle Sizes	325 mesh or be customized
Shape	Irregular
Melting Point	N/A
Crystal structure	Trigonal, hR9, No. 160
Density	4.4 g/cm 3

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Description of Niobium Disulfide Powder (NbS₂)

Niobium disulfide (NbS₂) powder is a layered transition metal dichalcogenide composed of niobium (Nb) and sulfur (S), with the chemical formula NbS₂. This compound is known for its unique electrical, thermal, and mechanical properties, making it valuable for various applications in electronics, energy storage, and materials science.

Manufacturing method of Niobium Disulfide Powder

Solid-State Reaction: Niobium disulfide is synthesized by reacting niobium metal with sulfur at elevated temperatures (600°C to 800°C) in an inert atmosphere, resulting in crystalline NbS₂.

Chemical Vapor Deposition (CVD): In this method, gaseous precursors of niobium and sulfur are introduced into a high-temperature reactor, where they decompose to deposit NbS₂ as a thin film or powder, ideal for high-purity applications.

Hydrothermal Synthesis: This technique involves dissolving niobium salts and sulfur in a solution and subjecting them to high temperatures and pressures, producing nanoscale NbS₂ with controlled morphology.

Mechanical Milling: Bulk NbS₂ can be ground into fine particles using high-energy ball milling, allowing for tailored particle size and distribution for specific applications.

Main properties of Niobium Disulfide Powder

Layered Structure: Niobium disulfide (NbS₂) features a layered crystal structure, facilitating ion intercalation and enhancing its performance in energy storage applications.

Electrical Conductivity: NbS₂ exhibits good electrical conductivity, making it suitable for use in semiconductor devices and electronic applications.

Lubricating Properties: The powder has excellent lubricating characteristics, reducing friction and wear in mechanical systems when used as an additive in lubricants.

Thermal Stability: Niobium disulfide is thermally stable, maintaining its properties under high temperatures, which is beneficial for various industrial applications.

Application of Niobium Disulfide Powder

Electrode Materials: Niobium disulfide powder is used in lithium-ion batteries and supercapacitors for its layered structure that allows ion intercalation; it’s mixed with conductive additives, pressed into electrodes, and assembled into cells.

Lubricants: Its excellent lubricating properties make Niobium disulfide powder an effective additive for reducing friction in mechanical systems, blended with oils or greases for enhanced performance.

Semiconductor Devices: Niobium disulfide powder’s electrical properties enable its use in electronics, such as field-effect transistors and sensors, often processed into thin films via CVD or spin-coating.

Photovoltaics: The semiconducting properties of Niobium disulfide powder allow its use in thin-film solar cells, deposited onto substrates using sputtering or CVD methods to form efficient photovoltaic layers.

Chemical Catalysts: Niobium disulfide powder exhibits catalytic properties in hydrogenation and oxidation reactions, processed into pellets or extrudates for enhanced efficiency in chemical reactors.

Niobium Disulfide Powder Scholar Articles

Chemical Vapor Deposition of Niobium Disulfide Thin Films

Abstract: Atmospheric pressure chemical vapor deposition (APCVD) of niobium sulfide coatings was achieved on glass substrates from the reaction of NbCl₅ and S(SiMe₃)₂, tBu₂S₂, tBuSH, or HSCH₂CH₂SH at 250−600 °C. The niobium sulfide films grown at temperatures above 500 °C were crystalline, and powder X-ray diffraction showed that two polytypes of NbS₂ were produced. The sulfur precursor used is fundamental to the polytype of NbS₂ obtained; films that are grown from the APCVD reaction of NbCl₅ and S(SiMe₃)₂ or tBu₂S₂ at 500−600 °C crystallize into the 1T structure, whereas those grown from the APCVD reaction of NbCl₅ and tBuSH or HSCH₂CH₂SH at 500−600 °C crystallize into the 3R structure. Energy dispersive X-ray analysis (EDXA) studies gave elemental ratios close to the expected 1:2 ratio for Nb:S. Scanning electron microscopy (SEM) revealed surface morphologies consistent with an island growth mechanism. The films were also characterized using Raman and X-ray photoelectron spectroscopy, both of which showed differences consistent with the formation of the two polytypes, 1T and 3R-NbS₂. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)