The Role of Structure and Conductivity of Perovskites Bi4V2−2xM2xO11−δ (M = Cu2+, Fe3+, Zr4+) in the Catalytic Dehydrogenation of Isobutanol
- Authors: Mikhalenko I.I.1, Povarova E.I.1, Pylinina A.I.1
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Affiliations:
- Peoples’ Friendship University of Russia
- Issue: Vol 90, No 4 (2016)
- Pages: 771-776
- Section: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/168020
- DOI: https://doi.org/10.1134/S0036024416040221
- ID: 168020
Cite item
Abstract
The catalytic activity of solid electrolytes from the family of complex bismuth vanadates Bi4V2−2xM2xO11−δ (BIMEVOX) with V5+ ions partially substituted by 3d metal cations was studied. In the transformations of isobutanol, it was found to depend on the crystal structure (α, β, γ Aurivillius phases), which changes at increased dopant ion contents (xM). The highly conductive tetragonal γ phase was most active for all BIMEVOX oxides. The activation energy of the dehydrogenation of isobutanol EaC=O increased linearly with the charge of the Mn+ ion and activation energy of conductivity of the γ phase of BIMEVOX in the series Cu2+ → Fe3+ → Zr4+.
About the authors
I. I. Mikhalenko
Peoples’ Friendship University of Russia
Author for correspondence.
Email: imikhalenko@mail.ru
Russian Federation, Moscow
E. I. Povarova
Peoples’ Friendship University of Russia
Email: imikhalenko@mail.ru
Russian Federation, Moscow
A. I. Pylinina
Peoples’ Friendship University of Russia
Email: imikhalenko@mail.ru
Russian Federation, Moscow