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One-Pot Synthesis and Characterization of Nb2O5 Nanopowder
- Source :
- Journal of Nanoscience and Nanotechnology. 12:7922-7926
- Publication Year :
- 2012
- Publisher :
- American Scientific Publishers, 2012.
-
Abstract
- Nanosized niobium oxide powders were synthesized with a yield of approximately 87% using a simple and facile soft-chemical process. Niobium pentachloride (Nb2Cl5) was used as the precursor which was first converted into niobium ethoxide and then hydrolysed with water to synthesize niobia nanopowder. The synthesized powder was calcined at 500 degrees C for phase conversion to end-centered monoclinic as confirmed by diffraction studies and elemental analysis with a chemical composition in the ratio of Nb:O as 1:2.5. The molecular framework of Nb-O-Nb stretching and asymmetric frequency was confirmed by FT-IR, UV-visible and Raman spectroscopic studies. The size, shape and surface morphology of the powders were observed by SEM and TEM which indicated particle sizes of approximately 20 nm. The surface area of 20 m2/g, pore volume of 0.0538 cm2/g and the average pore size of 6.5 nm2 for the calcined sample were obtained with the help of nitrogen adsorption/desorption method using the Barrett-Joyner-Halenda (BJH) method which indicates that the synthesized powder can be used for catalysis and other surface sensitive applications.
- Subjects :
- Materials science
Biomedical Engineering
Niobium
chemistry.chemical_element
Bioengineering
General Chemistry
Condensed Matter Physics
law.invention
Catalysis
symbols.namesake
chemistry
law
Desorption
symbols
Particle
Niobium oxide
General Materials Science
Calcination
Raman spectroscopy
Monoclinic crystal system
Nuclear chemistry
Subjects
Details
- ISSN :
- 15334880
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Journal of Nanoscience and Nanotechnology
- Accession number :
- edsair.doi.dedup.....0c64b44220c89a7f7e11448f5e33ebe6