Catalytic CO oxidation over Pd70Au30(111) alloy surfaces: Spectroscopic evidence for Pd ensemble dependent activity

Ryo Toyoshima; Nana Hiramatsu; Masaaki Yoshida; Kenta Amemiya; Kazuhiko Mase; Bongjin Simon Mun; Hiroshi Kondoh

doi:10.1039/c7cc06809c

Catalytic CO oxidation over Pd₇₀Au₃₀(111) alloy surfaces: Spectroscopic evidence for Pd ensemble dependent activity

Ryo Toyoshima, Nana Hiramatsu, Masaaki Yoshida, Kenta Amemiya, Kazuhiko Mase, Bongjin Simon Mun, Hiroshi Kondoh

Department of Chemistry

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

4 Citations (Scopus)

Abstract

Catalytic CO oxidation over Pd(111) and Pd₇₀Au₃₀(111) surfaces was investigated by in situ spectroscopic observations to understand the alloying effect. The reaction behaviour on Pd₇₀Au₃₀(111) is greatly different from that on Pd(111). Pd monomer and dimer ensembles can act as active centers, whereas triangular-shaped trimers and larger ensembles are inactive.

Original language	English
Pages (from-to)	12657-12660
Number of pages	4
Journal	Chemical Communications
Volume	53
Issue number	94
DOIs	https://doi.org/10.1039/c7cc06809c
Publication status	Published - 2017

ASJC Scopus subject areas

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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title = "Catalytic CO oxidation over Pd70Au30(111) alloy surfaces: Spectroscopic evidence for Pd ensemble dependent activity",

abstract = "Catalytic CO oxidation over Pd(111) and Pd70Au30(111) surfaces was investigated by in situ spectroscopic observations to understand the alloying effect. The reaction behaviour on Pd70Au30(111) is greatly different from that on Pd(111). Pd monomer and dimer ensembles can act as active centers, whereas triangular-shaped trimers and larger ensembles are inactive.",

author = "Ryo Toyoshima and Nana Hiramatsu and Masaaki Yoshida and Kenta Amemiya and Kazuhiko Mase and Mun, {Bongjin Simon} and Hiroshi Kondoh",

note = "Funding Information: We thank the Photon Factory staff for their technical support. This study was supported by the Grants-in-Aid for scientific research (20245004 and 26248008). The experiments were performed under the approval of the Photon Factory Program Advisory Committee (PF PAC 2015S2-008).",

year = "2017",

doi = "10.1039/c7cc06809c",

language = "English",

volume = "53",

pages = "12657--12660",

journal = "Chemical Communications",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Catalytic CO oxidation over Pd70Au30(111) alloy surfaces

T2 - Spectroscopic evidence for Pd ensemble dependent activity

AU - Toyoshima, Ryo

AU - Hiramatsu, Nana

AU - Yoshida, Masaaki

AU - Amemiya, Kenta

AU - Mase, Kazuhiko

AU - Mun, Bongjin Simon

AU - Kondoh, Hiroshi

N1 - Funding Information: We thank the Photon Factory staff for their technical support. This study was supported by the Grants-in-Aid for scientific research (20245004 and 26248008). The experiments were performed under the approval of the Photon Factory Program Advisory Committee (PF PAC 2015S2-008).

PY - 2017

Y1 - 2017

N2 - Catalytic CO oxidation over Pd(111) and Pd70Au30(111) surfaces was investigated by in situ spectroscopic observations to understand the alloying effect. The reaction behaviour on Pd70Au30(111) is greatly different from that on Pd(111). Pd monomer and dimer ensembles can act as active centers, whereas triangular-shaped trimers and larger ensembles are inactive.

AB - Catalytic CO oxidation over Pd(111) and Pd70Au30(111) surfaces was investigated by in situ spectroscopic observations to understand the alloying effect. The reaction behaviour on Pd70Au30(111) is greatly different from that on Pd(111). Pd monomer and dimer ensembles can act as active centers, whereas triangular-shaped trimers and larger ensembles are inactive.

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DO - 10.1039/c7cc06809c

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JO - Chemical Communications

JF - Chemical Communications

IS - 94

ER -

Catalytic CO oxidation over Pd₇₀Au₃₀(111) alloy surfaces: Spectroscopic evidence for Pd ensemble dependent activity

Abstract

ASJC Scopus subject areas

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