Research output: Contribution to journal › Conference article › peer-review
In situ study of structural transformation of the (TeO)x(Mo,V,Nb)5O14 mixed oxide nanocatalyst with a tunnel structure. / Derevyannikova, E.; Kardash, T.; Marchuk, A. et al.
In: Journal of Physics: Conference Series, Vol. 1410, No. 1, 012029, 20.12.2019.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - In situ study of structural transformation of the (TeO)x(Mo,V,Nb)5O14 mixed oxide nanocatalyst with a tunnel structure
AU - Derevyannikova, E.
AU - Kardash, T.
AU - Marchuk, A.
AU - Simanenko, A.
AU - Svintsitsikiy, D.
AU - Lazareva, E.
PY - 2019/12/20
Y1 - 2019/12/20
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85078120355&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1410/1/012029
DO - 10.1088/1742-6596/1410/1/012029
M3 - Conference article
AN - SCOPUS:85078120355
VL - 1410
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012029
T2 - 6th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures, SPbOPEN 2019
Y2 - 22 April 2019 through 25 April 2019
ER -
ID: 23287600