Influence of CO oxidation conditions on the Mn-Zr oxide catalyst structure

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Influence of CO oxidation conditions on the Mn-Zr oxide catalyst structure : In situ XRD and MS study. / Bulavchenko, O. A.; Vinokurov, Z. S.; Afonasenko, T. N. et al.

In: Materials Letters, Vol. 258, 126768, 01.01.2020.

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

BibTeX

@article{2c2458de70c9420a87b019d8c5351dbc,

title = "Influence of CO oxidation conditions on the Mn-Zr oxide catalyst structure: In situ XRD and MS study",

abstract = "Mn-Zr oxide catalyst was studied by X-ray powder diffraction and mass-spectrometry under CO oxidation reaction conditions with different CO/O2 ratio. Mn-Zr catalyst consists of manganese oxides and MnyZr1–yO2–x solid solution and was found to be stable in the environment with stoichiometric ratio of CO/O2 = 2:1 and with excess of oxygen. When the catalyst is treated in the reducing environment (pure CO and CO/O2 = 4:1) the transformation of manganese oxides to MnO and reduction of manganese cations in the structure of MnyZr1–yO2–x are observed. This process is reversible and reoxidation leads to the formation of the catalyst similar to the initial.",

keywords = "CO oxidation, Crystal structure, In situ XRD, Solid solution, Structural, Zirconia, REDUCTION, TEMPERATURE, BEHAVIOR, MNOX/ZRO2",

author = "Bulavchenko, {O. A.} and Vinokurov, {Z. S.} and Afonasenko, {T. N.} and Tsybulya, {S. V.}",

year = "2020",

month = jan,

day = "1",

doi = "10.1016/j.matlet.2019.126768",

language = "English",

volume = "258",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Influence of CO oxidation conditions on the Mn-Zr oxide catalyst structure

T2 - In situ XRD and MS study

AU - Bulavchenko, O. A.

AU - Vinokurov, Z. S.

AU - Afonasenko, T. N.

AU - Tsybulya, S. V.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Mn-Zr oxide catalyst was studied by X-ray powder diffraction and mass-spectrometry under CO oxidation reaction conditions with different CO/O2 ratio. Mn-Zr catalyst consists of manganese oxides and MnyZr1–yO2–x solid solution and was found to be stable in the environment with stoichiometric ratio of CO/O2 = 2:1 and with excess of oxygen. When the catalyst is treated in the reducing environment (pure CO and CO/O2 = 4:1) the transformation of manganese oxides to MnO and reduction of manganese cations in the structure of MnyZr1–yO2–x are observed. This process is reversible and reoxidation leads to the formation of the catalyst similar to the initial.

AB - Mn-Zr oxide catalyst was studied by X-ray powder diffraction and mass-spectrometry under CO oxidation reaction conditions with different CO/O2 ratio. Mn-Zr catalyst consists of manganese oxides and MnyZr1–yO2–x solid solution and was found to be stable in the environment with stoichiometric ratio of CO/O2 = 2:1 and with excess of oxygen. When the catalyst is treated in the reducing environment (pure CO and CO/O2 = 4:1) the transformation of manganese oxides to MnO and reduction of manganese cations in the structure of MnyZr1–yO2–x are observed. This process is reversible and reoxidation leads to the formation of the catalyst similar to the initial.

KW - CO oxidation

KW - Crystal structure

KW - In situ XRD

KW - Solid solution

KW - Structural

KW - Zirconia

KW - REDUCTION

KW - TEMPERATURE

KW - BEHAVIOR

KW - MNOX/ZRO2

UR - http://www.scopus.com/inward/record.url?scp=85073097521&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2019.126768

DO - 10.1016/j.matlet.2019.126768

M3 - Article

AN - SCOPUS:85073097521

VL - 258

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

M1 - 126768

ER -

ID: 21848421

Influence of CO oxidation conditions on the Mn-Zr oxide catalyst structure: In situ XRD and MS study

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