When Gold Is Not Noble: Nanoscale Gold Catalysts

A. Sanchez; S. Abbet; U. Heiz; W. D. Schneider; H. Häkkinen; R. N. Barnett; Uzi Landman

doi:10.1021/jp9935992

When Gold Is Not Noble: Nanoscale Gold Catalysts

A. Sanchez, S. Abbet, U. Heiz, W. D. Schneider, H. Häkkinen, R. N. Barnett, Uzi Landman

Research output: Contribution to journal › Review article › peer-review

1387 Scopus citations

Abstract

While inert as bulk material, nanoscale gold particles dispersed on oxide supports exhibit a remarkable catalytic activity. Temperature-programmed reaction studies of the catalyzed combustion of CO on size-selected small monodispersed Au_n (n ≤ 20) gold clusters supported on magnesia, and first-principle simulations, reveal the microscopic origins of the observed unusual catalytic activity, with Au₈ found to be the smallest catalytically active size. Partial electron transfer from the surface to the gold cluster and oxygen-vacancy F-center defects are shown to play an essential role in the activation of nanosize gold clusters as catalysts for the combustion reaction.

Original language	English
Pages (from-to)	9573-9578
Number of pages	6
Journal	Journal of Physical Chemistry A
Volume	103
Issue number	48
DOIs	https://doi.org/10.1021/jp9935992
State	Published - 2 Dec 1999
Externally published	Yes

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title = "When Gold Is Not Noble: Nanoscale Gold Catalysts",

abstract = "While inert as bulk material, nanoscale gold particles dispersed on oxide supports exhibit a remarkable catalytic activity. Temperature-programmed reaction studies of the catalyzed combustion of CO on size-selected small monodispersed Aun (n ≤ 20) gold clusters supported on magnesia, and first-principle simulations, reveal the microscopic origins of the observed unusual catalytic activity, with Au8 found to be the smallest catalytically active size. Partial electron transfer from the surface to the gold cluster and oxygen-vacancy F-center defects are shown to play an essential role in the activation of nanosize gold clusters as catalysts for the combustion reaction.",

author = "A. Sanchez and S. Abbet and U. Heiz and Schneider, {W. D.} and H. H{\"a}kkinen and Barnett, {R. N.} and Uzi Landman",

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TY - JOUR

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T2 - Nanoscale Gold Catalysts

AU - Sanchez, A.

AU - Abbet, S.

AU - Heiz, U.

AU - Schneider, W. D.

AU - Häkkinen, H.

AU - Barnett, R. N.

AU - Landman, Uzi

PY - 1999/12/2

Y1 - 1999/12/2

N2 - While inert as bulk material, nanoscale gold particles dispersed on oxide supports exhibit a remarkable catalytic activity. Temperature-programmed reaction studies of the catalyzed combustion of CO on size-selected small monodispersed Aun (n ≤ 20) gold clusters supported on magnesia, and first-principle simulations, reveal the microscopic origins of the observed unusual catalytic activity, with Au8 found to be the smallest catalytically active size. Partial electron transfer from the surface to the gold cluster and oxygen-vacancy F-center defects are shown to play an essential role in the activation of nanosize gold clusters as catalysts for the combustion reaction.

AB - While inert as bulk material, nanoscale gold particles dispersed on oxide supports exhibit a remarkable catalytic activity. Temperature-programmed reaction studies of the catalyzed combustion of CO on size-selected small monodispersed Aun (n ≤ 20) gold clusters supported on magnesia, and first-principle simulations, reveal the microscopic origins of the observed unusual catalytic activity, with Au8 found to be the smallest catalytically active size. Partial electron transfer from the surface to the gold cluster and oxygen-vacancy F-center defects are shown to play an essential role in the activation of nanosize gold clusters as catalysts for the combustion reaction.

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U2 - 10.1021/jp9935992

DO - 10.1021/jp9935992

M3 - Review article

AN - SCOPUS:0000769907

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VL - 103

SP - 9573

EP - 9578

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 48

ER -

When Gold Is Not Noble: Nanoscale Gold Catalysts

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