Ethanol Selective Oxidation into Syngas over Pt-Promoted Fluorite-Like Oxide: SSITKA and Pulse Microcalorimetry Study Full article
| Conference |
11th European Workshop on Selective Oxidation - Selectivity in Oxidation - Key to New Resources Valorization (ISO) during the 12th European Congress on Catalysis - Balancing the Use of Fossil and Renewable Resources (Europacat) 30 Aug - 4 Sep 2015 , Kazan |
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| Journal |
Catalysis Today
ISSN: 0920-5861 , E-ISSN: 1873-4308 |
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| Output data | Year: 2016, Volume: 278, Number: Part 1, Pages: 157-163 Pages count : 7 DOI: 10.1016/j.cattod.2016.05.005 | ||||||||
| Tags | Ethanol, Mechanism, Microcalorimetry, Partial oxidation, SSITKA, Syngas | ||||||||
| Authors |
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| Affiliations |
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Funding (3)
| 1 | European Commission | 604296 FP7-NMP-2013-LARGE-7 BIOGO |
| 2 | Russian Foundation for Basic Research | 15-53-16020 |
| 3 | Russian Foundation for Basic Research | 12-03-93115 |
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 Csingle bondC bond rupture in ethanol/acetaldehyde molecules, while Csingle bondH 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.
Cite:
Simonov M.N.
, Sadykov V.A.
, Rogov V.A.
, Bobin A.S.
, Sadovskaya E.M.
, Mezentseva N.V.
, Ishchenko A.V.
, Krieger T.A.
, Roger A.-C.
, van Veen A.C.
Ethanol Selective Oxidation into Syngas over Pt-Promoted Fluorite-Like Oxide: SSITKA and Pulse Microcalorimetry Study
Catalysis Today. 2016. V.278. NPart 1. P.157-163. DOI: 10.1016/j.cattod.2016.05.005 WOS Scopus РИНЦ AN OpenAlex
Ethanol Selective Oxidation into Syngas over Pt-Promoted Fluorite-Like Oxide: SSITKA and Pulse Microcalorimetry Study
Catalysis Today. 2016. V.278. NPart 1. P.157-163. DOI: 10.1016/j.cattod.2016.05.005 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Dec 29, 2015 |
| Accepted: | May 2, 2016 |
| Published online: | May 26, 2016 |
| Published print: | Dec 1, 2016 |
Identifiers:
| Web of science: | WOS:000388053000020 |
| Scopus: | 2-s2.0-84992724497 |
| Elibrary: | 28169654 |
| Chemical Abstracts: | 2016:840399 |
| OpenAlex: | W2406685872 |