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Low-temperature CO oxidation by Pd/CeO2 catalysts synthesized using the coprecipitation method. / Slavinskaya, E. M.; Gulyaev, R. V.; Zadesenets, A. V. и др.

в: Applied Catalysis B: Environmental, Том 166-167, 01.05.2015, стр. 91-103.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

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Slavinskaya EM, Gulyaev RV, Zadesenets AV, Stonkus OA, Zaikovskii VI, Shubin YV и др. Low-temperature CO oxidation by Pd/CeO2 catalysts synthesized using the coprecipitation method. Applied Catalysis B: Environmental. 2015 май 1;166-167:91-103. doi: 10.1016/j.apcatb.2014.11.015

Author

Slavinskaya, E. M. ; Gulyaev, R. V. ; Zadesenets, A. V. и др. / Low-temperature CO oxidation by Pd/CeO2 catalysts synthesized using the coprecipitation method. в: Applied Catalysis B: Environmental. 2015 ; Том 166-167. стр. 91-103.

BibTeX

@article{5107581dc4754bbea47f2389a056469a,
title = "Low-temperature CO oxidation by Pd/CeO2 catalysts synthesized using the coprecipitation method",
abstract = "Pd/CeO2 catalysts synthesized using the coprecipitation method under a wide range of palladium loading and calcination temperatures were investigated in this study. Structural (XRD, TEM), spectroscopic (XPS) and kinetic (TPR-CO) methods were used to investigate the morphological and structural forms of the catalysts and identify the states of palladium as the active component on the CeO2 surface and in its bulk. It was found that the synthesis and subsequent calcination at 450°C resulted in the formation of two main types of the catalyst components: PdO nanoparticles and PdxCe1-xO2-δ solid solution. Application of HRTEM allowed to establish the formation of aggregates where ceria or PdxCe1-xO2-δ nanoparticles were located around PdO nanoparticles. A subsequent calcination process resulted in partial dissolution of PdO nanoparticles in ceria lattice and formation of the surface compounds of palladium and ceria, PdOx(s)/Pd-O-Ce(s), which contain high reactive oxygen according to the TPR-CO data. Based on the XPS and TPR-CO data the catalytic activity at low temperatures (<100°C) was determined by a combination of both palladium surface structures PdOx(s)/Pd-O-Ce(s) and palladium ions Pd2+ in the PdxCe1-xO2-δ bulk phase.",
keywords = "Coprecipitation, Low-temperature CO oxidation, Pd/CeO, TEM, XPS",
author = "Slavinskaya, {E. M.} and Gulyaev, {R. V.} and Zadesenets, {A. V.} and Stonkus, {O. A.} and Zaikovskii, {V. I.} and Shubin, {Yu V.} and Korenev, {S. V.} and Boronin, {A. I.}",
year = "2015",
month = may,
day = "1",
doi = "10.1016/j.apcatb.2014.11.015",
language = "English",
volume = "166-167",
pages = "91--103",
journal = "Applied Catalysis B: Environmental",
issn = "0926-3373",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Low-temperature CO oxidation by Pd/CeO2 catalysts synthesized using the coprecipitation method

AU - Slavinskaya, E. M.

AU - Gulyaev, R. V.

AU - Zadesenets, A. V.

AU - Stonkus, O. A.

AU - Zaikovskii, V. I.

AU - Shubin, Yu V.

AU - Korenev, S. V.

AU - Boronin, A. I.

PY - 2015/5/1

Y1 - 2015/5/1

N2 - Pd/CeO2 catalysts synthesized using the coprecipitation method under a wide range of palladium loading and calcination temperatures were investigated in this study. Structural (XRD, TEM), spectroscopic (XPS) and kinetic (TPR-CO) methods were used to investigate the morphological and structural forms of the catalysts and identify the states of palladium as the active component on the CeO2 surface and in its bulk. It was found that the synthesis and subsequent calcination at 450°C resulted in the formation of two main types of the catalyst components: PdO nanoparticles and PdxCe1-xO2-δ solid solution. Application of HRTEM allowed to establish the formation of aggregates where ceria or PdxCe1-xO2-δ nanoparticles were located around PdO nanoparticles. A subsequent calcination process resulted in partial dissolution of PdO nanoparticles in ceria lattice and formation of the surface compounds of palladium and ceria, PdOx(s)/Pd-O-Ce(s), which contain high reactive oxygen according to the TPR-CO data. Based on the XPS and TPR-CO data the catalytic activity at low temperatures (<100°C) was determined by a combination of both palladium surface structures PdOx(s)/Pd-O-Ce(s) and palladium ions Pd2+ in the PdxCe1-xO2-δ bulk phase.

AB - Pd/CeO2 catalysts synthesized using the coprecipitation method under a wide range of palladium loading and calcination temperatures were investigated in this study. Structural (XRD, TEM), spectroscopic (XPS) and kinetic (TPR-CO) methods were used to investigate the morphological and structural forms of the catalysts and identify the states of palladium as the active component on the CeO2 surface and in its bulk. It was found that the synthesis and subsequent calcination at 450°C resulted in the formation of two main types of the catalyst components: PdO nanoparticles and PdxCe1-xO2-δ solid solution. Application of HRTEM allowed to establish the formation of aggregates where ceria or PdxCe1-xO2-δ nanoparticles were located around PdO nanoparticles. A subsequent calcination process resulted in partial dissolution of PdO nanoparticles in ceria lattice and formation of the surface compounds of palladium and ceria, PdOx(s)/Pd-O-Ce(s), which contain high reactive oxygen according to the TPR-CO data. Based on the XPS and TPR-CO data the catalytic activity at low temperatures (<100°C) was determined by a combination of both palladium surface structures PdOx(s)/Pd-O-Ce(s) and palladium ions Pd2+ in the PdxCe1-xO2-δ bulk phase.

KW - Coprecipitation

KW - Low-temperature CO oxidation

KW - Pd/CeO

KW - TEM

KW - XPS

UR - http://www.scopus.com/inward/record.url?scp=84911371627&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2014.11.015

DO - 10.1016/j.apcatb.2014.11.015

M3 - Article

AN - SCOPUS:84911371627

VL - 166-167

SP - 91

EP - 103

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

SN - 0926-3373

ER -

ID: 25402077