Cerium(III) Nitrate Derived CeO2 Support Stabilising PtOx Active Species for Room Temperature CO Oxidation

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Cerium(III) Nitrate Derived CeO₂ Support Stabilising PtO_x Active Species for Room Temperature CO Oxidation. / Vasilchenko, Danila ; Asanova, Tatyana; Kolesov, Boris и др.

в: ChemCatChem, Том 12, № 5, 06.03.2020, стр. 1413-1428.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{7593c7317cce48f8a71c627610d4b401,

title = "Cerium(III) Nitrate Derived CeO2 Support Stabilising PtOx Active Species for Room Temperature CO Oxidation",

abstract = "A new approach for preparing a PtOx/CeO2 catalyst for low-temperature CO oxidation has been developed. The approach includes; i) preparation of a CeO2 support through the controllable thermal decomposition of Ce(NO3)3 ⋅ 6H2O, and then ii) deposition of polynuclear platinum nitrato complexes ([H3O⊂18-crown-6]2[Pt2(μ2-OH)2(NO3)8][Pt4(μ3-OH)2(μ2-OH)4(NO3)10]) on the CeO2 support. The NO3 −-rich ceria support produced at the onset temperature of Ce(NO3)3 -> CeO2 transformation (220 °C) yields the “PtOx/CeO2-220” catalyst that shows intriguingly high activity in CO oxidation, at room temperature and below. To understand the nature of the low-temperature catalytic activity, prepared catalysts have been studied using X-ray photoelectron spectroscopy (XPS), Raman and operando X-ray absorption fine structure spectroscopy (XAFS) and transmission electron microscopy (TEM).",

keywords = "catalysis, ceria, low-temperature CO oxidation, operando XAS, platinum(IV) nitrato complexes, operando XAS, X-RAY-ABSORPTION, catalysis, STATE, ceria, platinum(IV) nitrato complexes, PT/CEO2 CATALYSTS, low-temperature CO oxidation, CATALYTIC PERFORMANCE, DISPERSED PT/CEO2, PLATINUM NANOPARTICLES, CERIA, DEFECT SITES, IN-SITU, PHOTOELECTRON-SPECTROSCOPY",

author = "Danila Vasilchenko and Tatyana Asanova and Boris Kolesov and Alphiya Tsygankova and Andrey Stadnichenko and Elena Slavinskaya and Evgeny Gerasimov and Kirill Lomachenko and Andrey Boronin and Sergey Korenev",

year = "2020",

month = mar,

day = "6",

doi = "10.1002/cctc.201902146",

language = "English",

volume = "12",

pages = "1413--1428",

journal = "ChemCatChem",

issn = "1867-3880",

publisher = "Wiley - VCH Verlag GmbH & CO. KGaA",

number = "5",

}

RIS

TY - JOUR

T1 - Cerium(III) Nitrate Derived CeO2 Support Stabilising PtOx Active Species for Room Temperature CO Oxidation

AU - Vasilchenko, Danila

AU - Asanova, Tatyana

AU - Kolesov, Boris

AU - Tsygankova, Alphiya

AU - Stadnichenko, Andrey

AU - Slavinskaya, Elena

AU - Gerasimov, Evgeny

AU - Lomachenko, Kirill

AU - Boronin, Andrey

AU - Korenev, Sergey

PY - 2020/3/6

Y1 - 2020/3/6

N2 - A new approach for preparing a PtOx/CeO2 catalyst for low-temperature CO oxidation has been developed. The approach includes; i) preparation of a CeO2 support through the controllable thermal decomposition of Ce(NO3)3 ⋅ 6H2O, and then ii) deposition of polynuclear platinum nitrato complexes ([H3O⊂18-crown-6]2[Pt2(μ2-OH)2(NO3)8][Pt4(μ3-OH)2(μ2-OH)4(NO3)10]) on the CeO2 support. The NO3 −-rich ceria support produced at the onset temperature of Ce(NO3)3 -> CeO2 transformation (220 °C) yields the “PtOx/CeO2-220” catalyst that shows intriguingly high activity in CO oxidation, at room temperature and below. To understand the nature of the low-temperature catalytic activity, prepared catalysts have been studied using X-ray photoelectron spectroscopy (XPS), Raman and operando X-ray absorption fine structure spectroscopy (XAFS) and transmission electron microscopy (TEM).

AB - A new approach for preparing a PtOx/CeO2 catalyst for low-temperature CO oxidation has been developed. The approach includes; i) preparation of a CeO2 support through the controllable thermal decomposition of Ce(NO3)3 ⋅ 6H2O, and then ii) deposition of polynuclear platinum nitrato complexes ([H3O⊂18-crown-6]2[Pt2(μ2-OH)2(NO3)8][Pt4(μ3-OH)2(μ2-OH)4(NO3)10]) on the CeO2 support. The NO3 −-rich ceria support produced at the onset temperature of Ce(NO3)3 -> CeO2 transformation (220 °C) yields the “PtOx/CeO2-220” catalyst that shows intriguingly high activity in CO oxidation, at room temperature and below. To understand the nature of the low-temperature catalytic activity, prepared catalysts have been studied using X-ray photoelectron spectroscopy (XPS), Raman and operando X-ray absorption fine structure spectroscopy (XAFS) and transmission electron microscopy (TEM).

KW - catalysis, ceria, low-temperature CO oxidation, operando XAS, platinum(IV) nitrato complexes

KW - operando XAS

KW - X-RAY-ABSORPTION

KW - catalysis

KW - STATE

KW - ceria

KW - platinum(IV) nitrato complexes

KW - PT/CEO2 CATALYSTS

KW - low-temperature CO oxidation

KW - CATALYTIC PERFORMANCE

KW - DISPERSED PT/CEO2

KW - PLATINUM NANOPARTICLES

KW - CERIA

KW - DEFECT SITES

KW - IN-SITU

KW - PHOTOELECTRON-SPECTROSCOPY

UR - http://www.scopus.com/inward/record.url?scp=85078768315&partnerID=8YFLogxK

U2 - 10.1002/cctc.201902146

DO - 10.1002/cctc.201902146

M3 - Article

AN - SCOPUS:85078768315

VL - 12

SP - 1413

EP - 1428

JO - ChemCatChem

JF - ChemCatChem

SN - 1867-3880

IS - 5

ER -

ID: 23328648