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203920

Sigma-Aldrich

Niobium(V) oxide

99.99% trace metals basis

Sinónimos:

Niobium pentoxide

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About This Item

Fórmula empírica (notación de Hill):
Nb2O5
Número de CAS:
1313-96-8
Peso molecular:
265.81
EC Number:
215-213-6
MDL number:
MFCD00011128
UNSPSC Code:
12352303
eCl@ss:
38180502
PubChem Substance ID:
24852077
NACRES:
NA.23

Quality Level

100

assay

99.99% trace metals basis

form

powder

density

4.47 g/mL at 25 °C (lit.)

SMILES string

O=[Nb](=O)O[Nb](=O)=O

InChI

1S/2Nb.5O

InChI key

ZKATWMILCYLAPD-UHFFFAOYSA-N

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General description

Niobium(V) oxide, also known as niobium pentoxide, is a white crystalline powder. It is a refractory metal oxide with a high melting point of over 2500 °C and high chemical stability, including to oxygen and moisture. Niobium(V) oxide is mainly used as a raw material in the production of niobium and niobium alloys, as a catalyst in chemical reactions, and as a refractory material in high-temperature applications. It is also used as a dielectric material in capacitors and as a pigment in ceramics and glasses.

Application

Applied in the solid state formation of an unusual cation deficient perovskite, Ba7Nb4MoO20.
Promising results were obtained using niobium(V) oxide as an alternate electrode to lithium metal in advanced fuel cells.

Features and Benefits

Applied in the solid state formation of an unusual cation deficient perovskite, Ba7Nb4MoO20.

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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Certificados de análisis (COA)

Lot/Batch Number
MKCW8270
MKCT6006
MKCS2385
MKCP9331
MKCM9619

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Niobium nitride powder, max. particle size 150 micron, weight 200 g, purity 99%

GF02895532

Niobium nitride

Garcia-Gonzalez, E. et al.
Chemistry of Materials, 11, 433-433 (1999)
Jinwoo Lee et al.
Nature materials, 7(3), 222-228 (2008-01-29)
Even after a decade or so of research, the direct synthesis of highly crystalline mesoporous transition-metal oxides that are thermally stable and well ordered still constitutes a major challenge. Although various soft- and hard-templating approaches have been developed in the
Hong-Yi Lin et al.
Journal of biomedical nanotechnology, 5(2), 215-223 (2010-01-09)
The feasibility of using niobium oxide-coated magnetic nanoparticles (NPs) as affinity probes for selectively trapping phosphopeptides from peptide mixtures including tryptic digest of caseins, serum, and cell lysate was demonstrated in this study. Phosphopeptide enrichment was rapid when subjecting these
Takashi Hisatomi et al.
Advanced materials (Deerfield Beach, Fla.), 24(20), 2699-2702 (2012-04-18)
A 2-nm thick Nb(2)O(5) underlayer deposited by atomic layer deposition increases the charge separation efficiency and the photovoltage of ultrathin hematite films by suppressing electron back injection. Absorbed photon-to-current efficiencies (APCE) as high as 40%, which are one of the
Jian-Lang Li et al.
Optics express, 16(14), 10841-10848 (2008-07-09)
Cylindrical vector beams were produced from laser diode end-pumped Nd:YAG ceramic microchip laser by use of two types of subwavelength multilayer gratings as the axisymmetric-polarization output couplers respectively. The grating mirrors are composed of high- and low-refractive- index (Nb(2)O(5)/SiO(2)) layers
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