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Ethanol selective oxidation into syngas over Pt-promoted fluorite-like oxide : SSITKA and pulse microcalorimetry study. / Simonov, M. N.; Sadykov, V. A.; Rogov, V. A. et al.

In: Catalysis Today, Vol. 278, 01.12.2016, p. 157-163.

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Simonov MN, Sadykov VA, Rogov VA, Bobin AS, Sadovskaya EM, Mezentseva NV et al. Ethanol selective oxidation into syngas over Pt-promoted fluorite-like oxide: SSITKA and pulse microcalorimetry study. Catalysis Today. 2016 Dec 1;278:157-163. doi: 10.1016/j.cattod.2016.05.005

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@article{fa24916812894ea9a85602ad43c4347a,
title = "Ethanol selective oxidation into syngas over Pt-promoted fluorite-like oxide: SSITKA and pulse microcalorimetry study",
abstract = "Catalysts based on oxides with a high lattice oxygen mobility and reactivity are known to be able to efficiently transform ethanol into syngas by selective oxidation. Mechanism of this reaction over Pt/Pr0.15Sm0.15Ce0.35Zr0.35O2 catalyst was studied by using SSITKA and pulse microcalorimetry. The rate–determining step is C[sbnd]C bond rupture in ethanol/acetaldehyde molecules, while C[sbnd]H bond breaking in the ethanol dehydrogenation step proceeds easily. The mechanism is described by step-wise red–ox scheme including ethanol oxidative decomposition on Pt sites with participation of bridging oxygen species (with the heat of adsorption ∼ 550 kJ/mol O2) located at Pt-oxide interface followed by fast reoxidation of reduced support sites by O2. Rapid oxygen migration from the oxide sites to Pt provides conjugation between these steps, thus suppressing coking.",
keywords = "Ethanol, Mechanism, Microcalorimetry, Partial oxidation, SSITKA, Syngas",
author = "Simonov, {M. N.} and Sadykov, {V. A.} and Rogov, {V. A.} and Bobin, {A. S.} and Sadovskaya, {E. M.} and Mezentseva, {N. V.} and Ishchenko, {A. V.} and Krieger, {T. A.} and Roger, {A. C.} and {van Veen}, {A. C.}",
year = "2016",
month = dec,
day = "1",
doi = "10.1016/j.cattod.2016.05.005",
language = "English",
volume = "278",
pages = "157--163",
journal = "Catalysis Today",
issn = "0920-5861",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Ethanol selective oxidation into syngas over Pt-promoted fluorite-like oxide

T2 - SSITKA and pulse microcalorimetry study

AU - Simonov, M. N.

AU - Sadykov, V. A.

AU - Rogov, V. A.

AU - Bobin, A. S.

AU - Sadovskaya, E. M.

AU - Mezentseva, N. V.

AU - Ishchenko, A. V.

AU - Krieger, T. A.

AU - Roger, A. C.

AU - van Veen, A. C.

PY - 2016/12/1

Y1 - 2016/12/1

N2 - Catalysts based on oxides with a high lattice oxygen mobility and reactivity are known to be able to efficiently transform ethanol into syngas by selective oxidation. Mechanism of this reaction over Pt/Pr0.15Sm0.15Ce0.35Zr0.35O2 catalyst was studied by using SSITKA and pulse microcalorimetry. The rate–determining step is C[sbnd]C bond rupture in ethanol/acetaldehyde molecules, while C[sbnd]H bond breaking in the ethanol dehydrogenation step proceeds easily. The mechanism is described by step-wise red–ox scheme including ethanol oxidative decomposition on Pt sites with participation of bridging oxygen species (with the heat of adsorption ∼ 550 kJ/mol O2) located at Pt-oxide interface followed by fast reoxidation of reduced support sites by O2. Rapid oxygen migration from the oxide sites to Pt provides conjugation between these steps, thus suppressing coking.

AB - Catalysts based on oxides with a high lattice oxygen mobility and reactivity are known to be able to efficiently transform ethanol into syngas by selective oxidation. Mechanism of this reaction over Pt/Pr0.15Sm0.15Ce0.35Zr0.35O2 catalyst was studied by using SSITKA and pulse microcalorimetry. The rate–determining step is C[sbnd]C bond rupture in ethanol/acetaldehyde molecules, while C[sbnd]H bond breaking in the ethanol dehydrogenation step proceeds easily. The mechanism is described by step-wise red–ox scheme including ethanol oxidative decomposition on Pt sites with participation of bridging oxygen species (with the heat of adsorption ∼ 550 kJ/mol O2) located at Pt-oxide interface followed by fast reoxidation of reduced support sites by O2. Rapid oxygen migration from the oxide sites to Pt provides conjugation between these steps, thus suppressing coking.

KW - Ethanol

KW - Mechanism

KW - Microcalorimetry

KW - Partial oxidation

KW - SSITKA

KW - Syngas

UR - http://www.scopus.com/inward/record.url?scp=84992724497&partnerID=8YFLogxK

U2 - 10.1016/j.cattod.2016.05.005

DO - 10.1016/j.cattod.2016.05.005

M3 - Article

AN - SCOPUS:84992724497

VL - 278

SP - 157

EP - 163

JO - Catalysis Today

JF - Catalysis Today

SN - 0920-5861

ER -

ID: 25390256