CuFeAl-composite catalysts of oxidation of gasification products of solid fuels

Standard

CuFeAl-composite catalysts of oxidation of gasification products of solid fuels : In situ XAS and XRD study. / Saraev, A. A.; Tsapina, A. M.; Fedorov, A. V. et al.

In: Radiation Physics and Chemistry, Vol. 175, 108071, 10.2020.

Research output: Contribution to journal › Article › peer-review

Harvard

Saraev, AA, Tsapina, AM, Fedorov, AV, Trigub, AL, Bulavchenko, OA, Vinokurov, ZS, Zubavichus, YV & Kaichev, VV 2020, 'CuFeAl-composite catalysts of oxidation of gasification products of solid fuels: In situ XAS and XRD study', Radiation Physics and Chemistry, vol. 175, 108071. https://doi.org/10.1016/j.radphyschem.2018.11.025

APA

Saraev, A. A., Tsapina, A. M., Fedorov, A. V., Trigub, A. L., Bulavchenko, O. A., Vinokurov, Z. S., Zubavichus, Y. V., & Kaichev, V. V. (2020). CuFeAl-composite catalysts of oxidation of gasification products of solid fuels: In situ XAS and XRD study. Radiation Physics and Chemistry, 175, [108071]. https://doi.org/10.1016/j.radphyschem.2018.11.025

Vancouver

Saraev AA, Tsapina AM, Fedorov AV, Trigub AL, Bulavchenko OA, Vinokurov ZS et al. CuFeAl-composite catalysts of oxidation of gasification products of solid fuels: In situ XAS and XRD study. Radiation Physics and Chemistry. 2020 Oct;175:108071. doi: 10.1016/j.radphyschem.2018.11.025

Author

Saraev, A. A. ; Tsapina, A. M. ; Fedorov, A. V. et al. / CuFeAl-composite catalysts of oxidation of gasification products of solid fuels : In situ XAS and XRD study. In: Radiation Physics and Chemistry. 2020 ; Vol. 175.

BibTeX

@article{b4a1688fe92e4edf854b7f5dbe4dcb41,

title = "CuFeAl-composite catalysts of oxidation of gasification products of solid fuels: In situ XAS and XRD study",

abstract = "The reduction of high-active FeAl and CuFeAl composite catalysts was investigated in situ by XRD and XAS in the temperature range between 100 and 600 °C. It was found that the fresh catalysts consist of Fe2O3 and Al2O3 phases only. The Al3+ cations partially dissolute in the Fe2O3 lattice. The addition of copper to the Fe-Al catalyst leads to formation of highly dispersed CuO nanoparticles and mixed oxide with a spinel-type crystalline structure similar to that of CuFe2O4. The low-temperature reduction of Cu2+ to Cu0 accelerates the Fe2O3 → Fe3O4 and FeO → Fe0 transformations. In the presence of oxygen we did not observe the reduction of Cu and Fe to the metallic state. This means that the oxidation of CO over FeAl and CuFeAl composite catalysts proceeds via a redox mechanism.",

keywords = "Catalytic combustion, CO oxidation, CuFeAl-composite catalysts, In situ XAS, In situ XRD, RAY-ABSORPTION SPECTROSCOPY, REDUCTION, COPPER",

author = "Saraev, {A. A.} and Tsapina, {A. M.} and Fedorov, {A. V.} and Trigub, {A. L.} and Bulavchenko, {O. A.} and Vinokurov, {Z. S.} and Zubavichus, {Ya V.} and Kaichev, {V. V.}",

year = "2020",

month = oct,

doi = "10.1016/j.radphyschem.2018.11.025",

language = "English",

volume = "175",

journal = "Radiation Physics and Chemistry",

issn = "0969-806X",

publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - CuFeAl-composite catalysts of oxidation of gasification products of solid fuels

T2 - In situ XAS and XRD study

AU - Saraev, A. A.

AU - Tsapina, A. M.

AU - Fedorov, A. V.

AU - Trigub, A. L.

AU - Bulavchenko, O. A.

AU - Vinokurov, Z. S.

AU - Zubavichus, Ya V.

AU - Kaichev, V. V.

PY - 2020/10

Y1 - 2020/10

N2 - The reduction of high-active FeAl and CuFeAl composite catalysts was investigated in situ by XRD and XAS in the temperature range between 100 and 600 °C. It was found that the fresh catalysts consist of Fe2O3 and Al2O3 phases only. The Al3+ cations partially dissolute in the Fe2O3 lattice. The addition of copper to the Fe-Al catalyst leads to formation of highly dispersed CuO nanoparticles and mixed oxide with a spinel-type crystalline structure similar to that of CuFe2O4. The low-temperature reduction of Cu2+ to Cu0 accelerates the Fe2O3 → Fe3O4 and FeO → Fe0 transformations. In the presence of oxygen we did not observe the reduction of Cu and Fe to the metallic state. This means that the oxidation of CO over FeAl and CuFeAl composite catalysts proceeds via a redox mechanism.

AB - The reduction of high-active FeAl and CuFeAl composite catalysts was investigated in situ by XRD and XAS in the temperature range between 100 and 600 °C. It was found that the fresh catalysts consist of Fe2O3 and Al2O3 phases only. The Al3+ cations partially dissolute in the Fe2O3 lattice. The addition of copper to the Fe-Al catalyst leads to formation of highly dispersed CuO nanoparticles and mixed oxide with a spinel-type crystalline structure similar to that of CuFe2O4. The low-temperature reduction of Cu2+ to Cu0 accelerates the Fe2O3 → Fe3O4 and FeO → Fe0 transformations. In the presence of oxygen we did not observe the reduction of Cu and Fe to the metallic state. This means that the oxidation of CO over FeAl and CuFeAl composite catalysts proceeds via a redox mechanism.

KW - Catalytic combustion

KW - CO oxidation

KW - CuFeAl-composite catalysts

KW - In situ XAS

KW - In situ XRD

KW - RAY-ABSORPTION SPECTROSCOPY

KW - REDUCTION

KW - COPPER

UR - http://www.scopus.com/inward/record.url?scp=85058150349&partnerID=8YFLogxK

U2 - 10.1016/j.radphyschem.2018.11.025

DO - 10.1016/j.radphyschem.2018.11.025

M3 - Article

AN - SCOPUS:85058150349

VL - 175

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

SN - 0969-806X

M1 - 108071

ER -

ID: 17822292