Comparative study of Rh-MoO x and Rh-ReO x supported on SiO 2 for the hydrogenolysis of ethers and polyols

Shuichi Koso; Hideo Watanabe; Kazu Okumura; Yoshinao Nakagawa; Keiichi Tomishige

doi:10.1016/j.apcatb.2011.09.015

Comparative study of Rh-MoO _x and Rh-ReO _x supported on SiO ₂ for the hydrogenolysis of ethers and polyols

Shuichi Koso, Hideo Watanabe, Kazu Okumura, Yoshinao Nakagawa, Keiichi Tomishige

ENG - Applied Chemistry

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

174 Citations (Scopus)

Abstract

Rh-MO _x/SiO ₂ (M=Mo or Re) catalysts shows the high activity of the hydrogenolysis of C-O bond in the substrates with CH ₂OH group such as tetrahydrofurfuryl alcohol, various diols and their ethers. Characterization results suggest the catalyst structure were isolated MoO _x species and small ReO _x cluster with low valence attached on the surface of Rh metal particles. It is characteristic that the reactivity of the C-O bond in the -O-C-C-CH ₂OH is higher than that in the -O-C-CH ₂OH over Rh-MoO _x/SiO ₂, and Rh-ReO _x/SiO ₂ has the opposite tendency to Rh-MoO _x/SiO ₂. The difference in the regioselectivity of the hydrogenolysis over Rh-MoO _x/SiO ₂ and Rh-ReO _x/SiO ₂ can be related to the different structure of isolated MoO _x species and small ReO _x clusters.

Original language	English
Pages (from-to)	27-37
Number of pages	11
Journal	Applied Catalysis B: Environmental
Volume	111-112
DOIs	https://doi.org/10.1016/j.apcatb.2011.09.015
Publication status	Published - 2012 Jan 12

Keywords

Hydrogenolysis
Low valent Re
Low valent mo
Metal-oxide interaction
Regioselectivity

ASJC Scopus subject areas

Catalysis
Environmental Science(all)
Process Chemistry and Technology

Access to Document

10.1016/j.apcatb.2011.09.015

Cite this

@article{9ccc457436aa459a9e291ceac0afa1e6,

title = "Comparative study of Rh-MoO x and Rh-ReO x supported on SiO 2 for the hydrogenolysis of ethers and polyols",

abstract = "Rh-MO x/SiO 2 (M=Mo or Re) catalysts shows the high activity of the hydrogenolysis of C-O bond in the substrates with CH 2OH group such as tetrahydrofurfuryl alcohol, various diols and their ethers. Characterization results suggest the catalyst structure were isolated MoO x species and small ReO x cluster with low valence attached on the surface of Rh metal particles. It is characteristic that the reactivity of the C-O bond in the -O-C-C-CH 2OH is higher than that in the -O-C-CH 2OH over Rh-MoO x/SiO 2, and Rh-ReO x/SiO 2 has the opposite tendency to Rh-MoO x/SiO 2. The difference in the regioselectivity of the hydrogenolysis over Rh-MoO x/SiO 2 and Rh-ReO x/SiO 2 can be related to the different structure of isolated MoO x species and small ReO x clusters.",

keywords = "Hydrogenolysis, Low valent Re, Low valent mo, Metal-oxide interaction, Regioselectivity",

author = "Shuichi Koso and Hideo Watanabe and Kazu Okumura and Yoshinao Nakagawa and Keiichi Tomishige",

year = "2012",

month = jan,

day = "12",

doi = "10.1016/j.apcatb.2011.09.015",

language = "English",

volume = "111-112",

pages = "27--37",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier",

}

TY - JOUR

T1 - Comparative study of Rh-MoO x and Rh-ReO x supported on SiO 2 for the hydrogenolysis of ethers and polyols

AU - Koso, Shuichi

AU - Watanabe, Hideo

AU - Okumura, Kazu

AU - Nakagawa, Yoshinao

AU - Tomishige, Keiichi

PY - 2012/1/12

Y1 - 2012/1/12

N2 - Rh-MO x/SiO 2 (M=Mo or Re) catalysts shows the high activity of the hydrogenolysis of C-O bond in the substrates with CH 2OH group such as tetrahydrofurfuryl alcohol, various diols and their ethers. Characterization results suggest the catalyst structure were isolated MoO x species and small ReO x cluster with low valence attached on the surface of Rh metal particles. It is characteristic that the reactivity of the C-O bond in the -O-C-C-CH 2OH is higher than that in the -O-C-CH 2OH over Rh-MoO x/SiO 2, and Rh-ReO x/SiO 2 has the opposite tendency to Rh-MoO x/SiO 2. The difference in the regioselectivity of the hydrogenolysis over Rh-MoO x/SiO 2 and Rh-ReO x/SiO 2 can be related to the different structure of isolated MoO x species and small ReO x clusters.

AB - Rh-MO x/SiO 2 (M=Mo or Re) catalysts shows the high activity of the hydrogenolysis of C-O bond in the substrates with CH 2OH group such as tetrahydrofurfuryl alcohol, various diols and their ethers. Characterization results suggest the catalyst structure were isolated MoO x species and small ReO x cluster with low valence attached on the surface of Rh metal particles. It is characteristic that the reactivity of the C-O bond in the -O-C-C-CH 2OH is higher than that in the -O-C-CH 2OH over Rh-MoO x/SiO 2, and Rh-ReO x/SiO 2 has the opposite tendency to Rh-MoO x/SiO 2. The difference in the regioselectivity of the hydrogenolysis over Rh-MoO x/SiO 2 and Rh-ReO x/SiO 2 can be related to the different structure of isolated MoO x species and small ReO x clusters.

KW - Hydrogenolysis

KW - Low valent Re

KW - Low valent mo

KW - Metal-oxide interaction

KW - Regioselectivity

UR - http://www.scopus.com/inward/record.url?scp=84155171158&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84155171158&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2011.09.015

DO - 10.1016/j.apcatb.2011.09.015

M3 - Article

AN - SCOPUS:84155171158

SN - 0926-3373

VL - 111-112

SP - 27

EP - 37

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

ER -