Promoting mechanism of potassium in preferential CO oxidation on Pt/Al2O3

Masatoshi Kuriyama; Hisanori Tanaka; Shin ichi Ito; Takeshi Kubota; Toshihiro Miyao; Shuichi Naito; Keiichi Tomishige; Kimio Kunimori

doi:10.1016/j.jcat.2007.09.001

Promoting mechanism of potassium in preferential CO oxidation on Pt/Al₂O₃

Masatoshi Kuriyama, Hisanori Tanaka, Shin ichi Ito, Takeshi Kubota, Toshihiro Miyao, Shuichi Naito, Keiichi Tomishige, Kimio Kunimori

ENG - Applied Chemistry

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

91 Citations (Scopus)

Abstract

The addition of potassium enhanced the activity of preferential CO oxidation on Pt/Al₂O₃. The additive effect of potassium weakened the interaction between CO and Pt, and also changed the CO adsorption site. FTIR observations under the PROX conditions suggested the presence of adsorbed species derived from O₂ and H₂ such as OH species, which can be related to the promoting effect of H₂ present in the PROX reaction.

Original language	English
Pages (from-to)	39-48
Number of pages	10
Journal	Journal of Catalysis
Volume	252
Issue number	1
DOIs	https://doi.org/10.1016/j.jcat.2007.09.001
Publication status	Published - 2007 Nov 15

Keywords

AlO
Platinum
Potassium
Preferential CO oxidation

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10.1016/j.jcat.2007.09.001

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title = "Promoting mechanism of potassium in preferential CO oxidation on Pt/Al2O3",

abstract = "The addition of potassium enhanced the activity of preferential CO oxidation on Pt/Al2O3. The additive effect of potassium weakened the interaction between CO and Pt, and also changed the CO adsorption site. FTIR observations under the PROX conditions suggested the presence of adsorbed species derived from O2 and H2 such as OH species, which can be related to the promoting effect of H2 present in the PROX reaction.",

keywords = "AlO, Platinum, Potassium, Preferential CO oxidation",

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AU - Kuriyama, Masatoshi

AU - Tanaka, Hisanori

AU - Ito, Shin ichi

AU - Kubota, Takeshi

AU - Miyao, Toshihiro

AU - Naito, Shuichi

AU - Tomishige, Keiichi

AU - Kunimori, Kimio

PY - 2007/11/15

Y1 - 2007/11/15

N2 - The addition of potassium enhanced the activity of preferential CO oxidation on Pt/Al2O3. The additive effect of potassium weakened the interaction between CO and Pt, and also changed the CO adsorption site. FTIR observations under the PROX conditions suggested the presence of adsorbed species derived from O2 and H2 such as OH species, which can be related to the promoting effect of H2 present in the PROX reaction.

AB - The addition of potassium enhanced the activity of preferential CO oxidation on Pt/Al2O3. The additive effect of potassium weakened the interaction between CO and Pt, and also changed the CO adsorption site. FTIR observations under the PROX conditions suggested the presence of adsorbed species derived from O2 and H2 such as OH species, which can be related to the promoting effect of H2 present in the PROX reaction.

KW - AlO

KW - Platinum

KW - Potassium

KW - Preferential CO oxidation

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SN - 0021-9517

VL - 252

SP - 39

EP - 48

JO - Journal of Catalysis

JF - Journal of Catalysis

IS - 1

ER -

Promoting mechanism of potassium in preferential CO oxidation on Pt/Al₂O₃

Abstract

Keywords

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