In situ study of structural transformation of the (TeO)x(Mo,V,Nb)5O14 mixed oxide nanocatalyst with a tunnel structure

E. Derevyannikova, T. Kardash, A. Marchuk, A. Simanenko, D. Svintsitsikiy, E. Lazareva

Research output: Contribution to journalConference articlepeer-review

Abstract

The nano oxides (TeO)x(Mo,V,Nb)5O14 with so-called M1 structure are highly attractive objects due to unsurpassed catalytic properties. In situ X-ray powder diffraction method with high time resolution (0.4 seconds per diffraction pattern) was applied to study the structure stability and the mechanism of phase transformation under heating in the reductive conditions. It was shown that M1 structure gradually transforms into the rutile-type (Mo,V,Nb)O2 phase without intermediate phases and/or amorphisation at temperatures >480°C in a reductive media. The process is initiated by tellurium reduction and its sublimation to the gas phase.

Original languageEnglish
Article number012029
JournalJournal of Physics: Conference Series
Volume1410
Issue number1
DOIs
Publication statusPublished - 20 Dec 2019
Event6th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures, SPbOPEN 2019 - Saint Petersburg, Russian Federation
Duration: 22 Apr 201925 Apr 2019

Fingerprint

Dive into the research topics of 'In situ study of structural transformation of the (TeO)<sub>x</sub>(Mo,V,Nb)<sub>5</sub>O<sub>14</sub> mixed oxide nanocatalyst with a tunnel structure'. Together they form a unique fingerprint.

Cite this