Preparation of Sn-modified silica-coated Pt catalysts: A new Pt-Sn bimetallic model catalyst for selective hydrogenation of crotonaldehyde

Keita Taniya; Hiroki Jinno; Masahiro Kishida; Yuichi Ichihashi; Satoru Nishiyama

doi:10.1016/j.jcat.2012.01.006

Preparation of Sn-modified silica-coated Pt catalysts: A new Pt-Sn bimetallic model catalyst for selective hydrogenation of crotonaldehyde

Keita Taniya, Hiroki Jinno, Masahiro Kishida, Yuichi Ichihashi, Satoru Nishiyama

Molecular and Biochemical Systems Engineering

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

74 Citations (Scopus)

Abstract

Selective hydrogenation of crotonaldehyde to the corresponding unsaturated alcohol, crotyl alcohol, has been investigated over Sn-modified SiO ₂-coated Pt catalyst. Tin-modified SiO ₂-coated Pt (Sn/SP) catalyst was proposed as a new concept catalyst, in which roles of Sn (to activate the CO group of crotonaldehyde) and Pt (to activate H ₂) were totally separated. TEM and EXAFS experiments for Sn/SP calcined at 823 K and reduced by H ₂ at 573 K confirmed that Sn species were separate by impregnated from the core Pt nanoparticles. The selectivity toward crotyl alcohol over the Sn/SP catalysts calcined at 823 K and reduced by H ₂ at 573 K attained 100% with 4.1% of yield. These results suggest that the reaction between the activated crotonaldehyde on SnO ₂ sites and H ₂ dissociatively adsorbed on Pt proceeds over the Sn/SP catalysts.

Original language	English
Pages (from-to)	84-91
Number of pages	8
Journal	Journal of Catalysis
Volume	288
DOIs	https://doi.org/10.1016/j.jcat.2012.01.006
Publication status	Published - Apr 2012

All Science Journal Classification (ASJC) codes

Catalysis
Physical and Theoretical Chemistry

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10.1016/j.jcat.2012.01.006

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@article{b2591b27ee7040b4850084823472bda9,

title = "Preparation of Sn-modified silica-coated Pt catalysts: A new Pt-Sn bimetallic model catalyst for selective hydrogenation of crotonaldehyde",

abstract = "Selective hydrogenation of crotonaldehyde to the corresponding unsaturated alcohol, crotyl alcohol, has been investigated over Sn-modified SiO 2-coated Pt catalyst. Tin-modified SiO 2-coated Pt (Sn/SP) catalyst was proposed as a new concept catalyst, in which roles of Sn (to activate the CO group of crotonaldehyde) and Pt (to activate H 2) were totally separated. TEM and EXAFS experiments for Sn/SP calcined at 823 K and reduced by H 2 at 573 K confirmed that Sn species were separate by impregnated from the core Pt nanoparticles. The selectivity toward crotyl alcohol over the Sn/SP catalysts calcined at 823 K and reduced by H 2 at 573 K attained 100% with 4.1% of yield. These results suggest that the reaction between the activated crotonaldehyde on SnO 2 sites and H 2 dissociatively adsorbed on Pt proceeds over the Sn/SP catalysts.",

author = "Keita Taniya and Hiroki Jinno and Masahiro Kishida and Yuichi Ichihashi and Satoru Nishiyama",

year = "2012",

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doi = "10.1016/j.jcat.2012.01.006",

language = "English",

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pages = "84--91",

journal = "Journal of Catalysis",

issn = "0021-9517",

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T1 - Preparation of Sn-modified silica-coated Pt catalysts

T2 - A new Pt-Sn bimetallic model catalyst for selective hydrogenation of crotonaldehyde

AU - Taniya, Keita

AU - Jinno, Hiroki

AU - Kishida, Masahiro

AU - Ichihashi, Yuichi

AU - Nishiyama, Satoru

PY - 2012/4

Y1 - 2012/4

N2 - Selective hydrogenation of crotonaldehyde to the corresponding unsaturated alcohol, crotyl alcohol, has been investigated over Sn-modified SiO 2-coated Pt catalyst. Tin-modified SiO 2-coated Pt (Sn/SP) catalyst was proposed as a new concept catalyst, in which roles of Sn (to activate the CO group of crotonaldehyde) and Pt (to activate H 2) were totally separated. TEM and EXAFS experiments for Sn/SP calcined at 823 K and reduced by H 2 at 573 K confirmed that Sn species were separate by impregnated from the core Pt nanoparticles. The selectivity toward crotyl alcohol over the Sn/SP catalysts calcined at 823 K and reduced by H 2 at 573 K attained 100% with 4.1% of yield. These results suggest that the reaction between the activated crotonaldehyde on SnO 2 sites and H 2 dissociatively adsorbed on Pt proceeds over the Sn/SP catalysts.

AB - Selective hydrogenation of crotonaldehyde to the corresponding unsaturated alcohol, crotyl alcohol, has been investigated over Sn-modified SiO 2-coated Pt catalyst. Tin-modified SiO 2-coated Pt (Sn/SP) catalyst was proposed as a new concept catalyst, in which roles of Sn (to activate the CO group of crotonaldehyde) and Pt (to activate H 2) were totally separated. TEM and EXAFS experiments for Sn/SP calcined at 823 K and reduced by H 2 at 573 K confirmed that Sn species were separate by impregnated from the core Pt nanoparticles. The selectivity toward crotyl alcohol over the Sn/SP catalysts calcined at 823 K and reduced by H 2 at 573 K attained 100% with 4.1% of yield. These results suggest that the reaction between the activated crotonaldehyde on SnO 2 sites and H 2 dissociatively adsorbed on Pt proceeds over the Sn/SP catalysts.

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Preparation of Sn-modified silica-coated Pt catalysts: A new Pt-Sn bimetallic model catalyst for selective hydrogenation of crotonaldehyde

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