Synthesis of highly ordered mesoporous CeO2 and low temperature CO oxidation over Pd/mesoporous CeO2

Mingshi Jin; Jung Nam Park; Jeong Kuk Shon; Zhenghua Li; Min Young Yoon; Hyun Jung Na; Young Kwon Park; Ji Man Kim

doi:10.1007/s11164-011-0385-9

Synthesis of highly ordered mesoporous CeO₂ and low temperature CO oxidation over Pd/mesoporous CeO₂

Mingshi Jin, Jung Nam Park, Jeong Kuk Shon, Zhenghua Li, Min Young Yoon, Hyun Jung Na, Young Kwon Park, Ji Man Kim

School of Environmental Engineering

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Highly ordered mesoporous cerium dioxide (meso-CeO₂) was successfully synthesized using a facile solvent-free infiltration method from a mesoporous silica template, KIT-6. The meso-CeO₂ material, thus obtained, exhibited well-defined mesostructure and high surface area (153 m ² g^-1). The physicochemical properties of meso-CeO ₂ material and Pd-supported on meso-CeO₂ (Pd/meso-CeO ₂) were characterized by electron microscopy, X-ray diffraction, N₂ adsorption-desorption, and temperature-programmed experiments. The Pd/meso-CeO₂ catalyst exhibited excellent catalytic activity for CO oxidation compared with those of other Pd/CeO₂ catalysts which were prepared using nanocrystalline CeO₂ and bulk-CeO₂ as the supports. Moreover, a hydrogen pretreatment of the Pd/meso-CeO₂ catalyst resulted in a remarkable increase of catalytic activity (T ₁₀₀ = 52 °C).

Original language	English
Pages (from-to)	1181-1192
Number of pages	12
Journal	Research on Chemical Intermediates
Volume	37
Issue number	9
DOIs	https://doi.org/10.1007/s11164-011-0385-9
State	Published - Nov 2011

Keywords

CO oxidation
Mesoporous CeO
Nano-replication
Pd
Redox behavior

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title = "Synthesis of highly ordered mesoporous CeO2 and low temperature CO oxidation over Pd/mesoporous CeO2",

abstract = "Highly ordered mesoporous cerium dioxide (meso-CeO2) was successfully synthesized using a facile solvent-free infiltration method from a mesoporous silica template, KIT-6. The meso-CeO2 material, thus obtained, exhibited well-defined mesostructure and high surface area (153 m 2 g-1). The physicochemical properties of meso-CeO 2 material and Pd-supported on meso-CeO2 (Pd/meso-CeO 2) were characterized by electron microscopy, X-ray diffraction, N2 adsorption-desorption, and temperature-programmed experiments. The Pd/meso-CeO2 catalyst exhibited excellent catalytic activity for CO oxidation compared with those of other Pd/CeO2 catalysts which were prepared using nanocrystalline CeO2 and bulk-CeO2 as the supports. Moreover, a hydrogen pretreatment of the Pd/meso-CeO2 catalyst resulted in a remarkable increase of catalytic activity (T 100 = 52 °C).",

keywords = "CO oxidation, Mesoporous CeO, Nano-replication, Pd, Redox behavior",

author = "Mingshi Jin and Park, {Jung Nam} and Shon, {Jeong Kuk} and Zhenghua Li and Yoon, {Min Young} and Na, {Hyun Jung} and Park, {Young Kwon} and Kim, {Ji Man}",

year = "2011",

month = nov,

doi = "10.1007/s11164-011-0385-9",

language = "English",

volume = "37",

pages = "1181--1192",

journal = "Research on Chemical Intermediates",

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T1 - Synthesis of highly ordered mesoporous CeO2 and low temperature CO oxidation over Pd/mesoporous CeO2

AU - Jin, Mingshi

AU - Park, Jung Nam

AU - Shon, Jeong Kuk

AU - Li, Zhenghua

AU - Yoon, Min Young

AU - Na, Hyun Jung

AU - Park, Young Kwon

AU - Kim, Ji Man

PY - 2011/11

Y1 - 2011/11

N2 - Highly ordered mesoporous cerium dioxide (meso-CeO2) was successfully synthesized using a facile solvent-free infiltration method from a mesoporous silica template, KIT-6. The meso-CeO2 material, thus obtained, exhibited well-defined mesostructure and high surface area (153 m 2 g-1). The physicochemical properties of meso-CeO 2 material and Pd-supported on meso-CeO2 (Pd/meso-CeO 2) were characterized by electron microscopy, X-ray diffraction, N2 adsorption-desorption, and temperature-programmed experiments. The Pd/meso-CeO2 catalyst exhibited excellent catalytic activity for CO oxidation compared with those of other Pd/CeO2 catalysts which were prepared using nanocrystalline CeO2 and bulk-CeO2 as the supports. Moreover, a hydrogen pretreatment of the Pd/meso-CeO2 catalyst resulted in a remarkable increase of catalytic activity (T 100 = 52 °C).

AB - Highly ordered mesoporous cerium dioxide (meso-CeO2) was successfully synthesized using a facile solvent-free infiltration method from a mesoporous silica template, KIT-6. The meso-CeO2 material, thus obtained, exhibited well-defined mesostructure and high surface area (153 m 2 g-1). The physicochemical properties of meso-CeO 2 material and Pd-supported on meso-CeO2 (Pd/meso-CeO 2) were characterized by electron microscopy, X-ray diffraction, N2 adsorption-desorption, and temperature-programmed experiments. The Pd/meso-CeO2 catalyst exhibited excellent catalytic activity for CO oxidation compared with those of other Pd/CeO2 catalysts which were prepared using nanocrystalline CeO2 and bulk-CeO2 as the supports. Moreover, a hydrogen pretreatment of the Pd/meso-CeO2 catalyst resulted in a remarkable increase of catalytic activity (T 100 = 52 °C).

KW - CO oxidation

KW - Mesoporous CeO

KW - Nano-replication

KW - Pd

KW - Redox behavior

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JO - Research on Chemical Intermediates

JF - Research on Chemical Intermediates

IS - 9

ER -

Synthesis of highly ordered mesoporous CeO₂ and low temperature CO oxidation over Pd/mesoporous CeO₂

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