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

Danila Vasilchenko; Tatyana Asanova; Boris Kolesov; Alphiya Tsygankova; Andrey Stadnichenko; Elena Slavinskaya; Evgeny Gerasimov; Kirill Lomachenko; Andrey Boronin; Sergey Korenev

doi:10.1002/cctc.201902146

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

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

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6 Citations (Scopus)

Abstract

A new approach for preparing a PtO_x/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 “PtO_x/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).

Original language	English
Pages (from-to)	1413-1428
Number of pages	16
Journal	ChemCatChem
Volume	12
Issue number	5
DOIs	https://doi.org/10.1002/cctc.201902146
Publication status	Published - 6 Mar 2020

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

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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).",

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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",

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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 -

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

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Keywords

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