Catalytic properties and characterization of Pd supported on hexaaluminate in high temperature combustion

Jung Min Sohn; Sung Kyu Kang; Seong Ihl Woo

doi:10.1016/S1381-1169(02)00067-5

Catalytic properties and characterization of Pd supported on hexaaluminate in high temperature combustion

Jung Min Sohn
, Sung Kyu Kang
, Seong Ihl Woo^*

^*Corresponding author for this work

Major of Mineral Resources and Energy Engineering

Korea Advanced Institute of Science and Technology
Korea Institute of Energy Research

Research output: Contribution to journal › Journal article › peer-review

19 Scopus citations

Abstract

The catalytic activities of palladium- supported Sr_0.8La_0.2MnAl₁₁O₁₉ (SLMA) and the effect of phase transformation of palladium on the catalytic activity after high temperature treatments were studied by XRD, TPD, temperature programmed reaction (TPRX) and temperature programmed reoxidation (TPRO). Also the interaction of palladium with Sr_0.8La_0.2MnAl₁₁O₁₉ at high temperature was studied by XPS. PdO formed on Sr_0.8La_0.2MnAl₁₁O₁₉ was dissociated to metallic Pd after calcination at 1000 °C. TPD and TPRX study revealed that the surface oxygen of PdO cluster was the major source of oxygen to react with CH₄ in the absence of O₂. TPRO after TPRX experiments showed the reoxidation of catalysts was dependent on the calcination temperature. High temperature treatments caused the interaction of palladium and Sr_0.8La_0.2MnAl₁₁O₁₉ support resulting in the change of the oxidation state of palladium.

Original language	English
Pages (from-to)	135-144
Number of pages	10
Journal	Journal of Molecular Catalysis A: Chemical
Volume	186
Issue number	1-2
DOIs	https://doi.org/10.1016/S1381-1169(02)00067-5
State	Published - 2002.07.22

Keywords

Hexaaluminate
Palladium
Palladium oxide
TPD
TPRO
TPRX
XPS

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10.1016/S1381-1169(02)00067-5

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@article{9d77440804624025ac6bbd6a5d978a5d,

title = "Catalytic properties and characterization of Pd supported on hexaaluminate in high temperature combustion",

abstract = "The catalytic activities of palladium- supported Sr0.8La0.2MnAl11O19 (SLMA) and the effect of phase transformation of palladium on the catalytic activity after high temperature treatments were studied by XRD, TPD, temperature programmed reaction (TPRX) and temperature programmed reoxidation (TPRO). Also the interaction of palladium with Sr0.8La0.2MnAl11O19 at high temperature was studied by XPS. PdO formed on Sr0.8La0.2MnAl11O19 was dissociated to metallic Pd after calcination at 1000 °C. TPD and TPRX study revealed that the surface oxygen of PdO cluster was the major source of oxygen to react with CH4 in the absence of O2. TPRO after TPRX experiments showed the reoxidation of catalysts was dependent on the calcination temperature. High temperature treatments caused the interaction of palladium and Sr0.8La0.2MnAl11O19 support resulting in the change of the oxidation state of palladium.",

keywords = "Hexaaluminate, Palladium, Palladium oxide, TPD, TPRO, TPRX, XPS",

author = "Sohn, \{Jung Min\} and Kang, \{Sung Kyu\} and Woo, \{Seong Ihl\}",

year = "2002",

month = jul,

day = "22",

doi = "10.1016/S1381-1169(02)00067-5",

language = "English",

volume = "186",

pages = "135--144",

journal = "Journal of Molecular Catalysis A: Chemical",

issn = "1381-1169",

number = "1-2",

}

TY - JOUR

T1 - Catalytic properties and characterization of Pd supported on hexaaluminate in high temperature combustion

AU - Sohn, Jung Min

AU - Kang, Sung Kyu

AU - Woo, Seong Ihl

PY - 2002/7/22

Y1 - 2002/7/22

N2 - The catalytic activities of palladium- supported Sr0.8La0.2MnAl11O19 (SLMA) and the effect of phase transformation of palladium on the catalytic activity after high temperature treatments were studied by XRD, TPD, temperature programmed reaction (TPRX) and temperature programmed reoxidation (TPRO). Also the interaction of palladium with Sr0.8La0.2MnAl11O19 at high temperature was studied by XPS. PdO formed on Sr0.8La0.2MnAl11O19 was dissociated to metallic Pd after calcination at 1000 °C. TPD and TPRX study revealed that the surface oxygen of PdO cluster was the major source of oxygen to react with CH4 in the absence of O2. TPRO after TPRX experiments showed the reoxidation of catalysts was dependent on the calcination temperature. High temperature treatments caused the interaction of palladium and Sr0.8La0.2MnAl11O19 support resulting in the change of the oxidation state of palladium.

AB - The catalytic activities of palladium- supported Sr0.8La0.2MnAl11O19 (SLMA) and the effect of phase transformation of palladium on the catalytic activity after high temperature treatments were studied by XRD, TPD, temperature programmed reaction (TPRX) and temperature programmed reoxidation (TPRO). Also the interaction of palladium with Sr0.8La0.2MnAl11O19 at high temperature was studied by XPS. PdO formed on Sr0.8La0.2MnAl11O19 was dissociated to metallic Pd after calcination at 1000 °C. TPD and TPRX study revealed that the surface oxygen of PdO cluster was the major source of oxygen to react with CH4 in the absence of O2. TPRO after TPRX experiments showed the reoxidation of catalysts was dependent on the calcination temperature. High temperature treatments caused the interaction of palladium and Sr0.8La0.2MnAl11O19 support resulting in the change of the oxidation state of palladium.

KW - Hexaaluminate

KW - Palladium

KW - Palladium oxide

KW - TPD

KW - TPRO

KW - TPRX

KW - XPS

UR - https://www.scopus.com/pages/publications/0037158146

U2 - 10.1016/S1381-1169(02)00067-5

DO - 10.1016/S1381-1169(02)00067-5

M3 - Journal article

AN - SCOPUS:0037158146

SN - 1381-1169

VL - 186

SP - 135

EP - 144

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

IS - 1-2

ER -

Catalytic properties and characterization of Pd supported on hexaaluminate in high temperature combustion

Abstract

Keywords

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