Thermal Decomposition of Divanadium Pentoxide V2O5: Towards a Nanocrystalline V2O3 Phase View Full Text


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Article Info

DATE

2002-11

AUTHORS

D.S. Su, R. Schlögl

ABSTRACT

Thermal decomposition of V2O5 was studied by means of transmission electron microscopy (TEM) and electron energy-loss spectroscopy (EELS). Samples were heated in a specimen chamber of an electron microscope up to 600 °C in vacuum at 10-7 Torr. TEM and EELS reveal a sequence of transformations from V2O5 via VO2 to V2O3, which differs from the electron-beam-induced reduction of V2O5. The phase transformation does not proceed topotactically. Our observation reveals that the initial thermal decomposition of V2O5 to V2O3 is followed by a combination of diffusion, coalescence, and stabilization processes. Our experiments open a new way for the preparation of single-crystalline V2O3 nano-particles. More... »

PAGES

115-119

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1021042232178

DOI

http://dx.doi.org/10.1023/a:1021042232178

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1011443279


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