Selective CO oxidation in H2-rich gas over K2CO 3-promoted Rh/SiO2 catalysts: Effects of preparation method

Shin Ichi Ito; Hisanori Tanaka; Yuji Minemura; Satoshi Kameoka; Keiichi Tomishige; Kimio Kunimori

doi:10.1016/j.apcata.2004.06.047

Selective CO oxidation in H₂-rich gas over K₂CO ₃-promoted Rh/SiO₂ catalysts: Effects of preparation method

Shin Ichi Ito, Hisanori Tanaka, Yuji Minemura, Satoshi Kameoka, Keiichi Tomishige, Kimio Kunimori

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

37 Citations (Scopus)

Abstract

The selective CO oxidation in H₂-rich gas over K ₂CO₃-promoted Rh/SiO₂ (K₂CO ₃-Rh/SiO₂) catalysts was investigated, and the results were compared with those of Rh/SiO₂ catalysts. K₂CO ₃Rh/SiO₂ catalysts were able to realize almost complete removal of CO. The additive effect of K₂CO₃ was dependent on the preparation method and on the K₂CO₃ amounts. K ₂CO₃-Rh/SiO₂ catalyst prepared by the sequential impregnation method with molar ratio K/Rh = 3 exhibited high performance. According to the characterization results, the catalyst had highly dispersed Rh metal particles partially covered with K₂CO ₃.

Original language	English
Pages (from-to)	295-302
Number of pages	8
Journal	Applied Catalysis A: General
Volume	273
Issue number	1-2
DOIs	https://doi.org/10.1016/j.apcata.2004.06.047
Publication status	Published - 2004 Oct 8
Externally published	Yes

Keywords

Carbon monoxide oxidation
Hydrogen
Potassium carbonate
Rhodium catalyst
Selective oxidation

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

Access to Document

10.1016/j.apcata.2004.06.047

Cite this

@article{e5e1794b6f314c25a50d0faebf1af989,

title = "Selective CO oxidation in H2-rich gas over K2CO 3-promoted Rh/SiO2 catalysts: Effects of preparation method",

abstract = "The selective CO oxidation in H2-rich gas over K 2CO3-promoted Rh/SiO2 (K2CO 3-Rh/SiO2) catalysts was investigated, and the results were compared with those of Rh/SiO2 catalysts. K2CO 3Rh/SiO2 catalysts were able to realize almost complete removal of CO. The additive effect of K2CO3 was dependent on the preparation method and on the K2CO3 amounts. K 2CO3-Rh/SiO2 catalyst prepared by the sequential impregnation method with molar ratio K/Rh = 3 exhibited high performance. According to the characterization results, the catalyst had highly dispersed Rh metal particles partially covered with K2CO 3.",

keywords = "Carbon monoxide oxidation, Hydrogen, Potassium carbonate, Rhodium catalyst, Selective oxidation",

author = "Ito, {Shin Ichi} and Hisanori Tanaka and Yuji Minemura and Satoshi Kameoka and Keiichi Tomishige and Kimio Kunimori",

year = "2004",

month = oct,

day = "8",

doi = "10.1016/j.apcata.2004.06.047",

language = "English",

volume = "273",

pages = "295--302",

journal = "Applied Catalysis A: General",

issn = "0926-860X",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Selective CO oxidation in H2-rich gas over K2CO 3-promoted Rh/SiO2 catalysts

T2 - Effects of preparation method

AU - Ito, Shin Ichi

AU - Tanaka, Hisanori

AU - Minemura, Yuji

AU - Kameoka, Satoshi

AU - Tomishige, Keiichi

AU - Kunimori, Kimio

PY - 2004/10/8

Y1 - 2004/10/8

N2 - The selective CO oxidation in H2-rich gas over K 2CO3-promoted Rh/SiO2 (K2CO 3-Rh/SiO2) catalysts was investigated, and the results were compared with those of Rh/SiO2 catalysts. K2CO 3Rh/SiO2 catalysts were able to realize almost complete removal of CO. The additive effect of K2CO3 was dependent on the preparation method and on the K2CO3 amounts. K 2CO3-Rh/SiO2 catalyst prepared by the sequential impregnation method with molar ratio K/Rh = 3 exhibited high performance. According to the characterization results, the catalyst had highly dispersed Rh metal particles partially covered with K2CO 3.

AB - The selective CO oxidation in H2-rich gas over K 2CO3-promoted Rh/SiO2 (K2CO 3-Rh/SiO2) catalysts was investigated, and the results were compared with those of Rh/SiO2 catalysts. K2CO 3Rh/SiO2 catalysts were able to realize almost complete removal of CO. The additive effect of K2CO3 was dependent on the preparation method and on the K2CO3 amounts. K 2CO3-Rh/SiO2 catalyst prepared by the sequential impregnation method with molar ratio K/Rh = 3 exhibited high performance. According to the characterization results, the catalyst had highly dispersed Rh metal particles partially covered with K2CO 3.

KW - Carbon monoxide oxidation

KW - Hydrogen

KW - Potassium carbonate

KW - Rhodium catalyst

KW - Selective oxidation

UR - http://www.scopus.com/inward/record.url?scp=4243058270&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4243058270&partnerID=8YFLogxK

U2 - 10.1016/j.apcata.2004.06.047

DO - 10.1016/j.apcata.2004.06.047

M3 - Article

AN - SCOPUS:4243058270

SN - 0926-860X

VL - 273

SP - 295

EP - 302

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

IS - 1-2

ER -