Gold nanoparticles supported on passivated silica: Access to an efficient aerobic epoxidation catalyst and the intrinsic oxidation activity of gold

David Gajan; Kevin Guillois; Pierre Delichère; Jean Marie Basset; Jean-Pierre Candy; Valerie Caps; Christophe Copéret; Anne Lesage; Lyndon Emsley

doi:10.1021/ja903730q

Gold nanoparticles supported on passivated silica: Access to an efficient aerobic epoxidation catalyst and the intrinsic oxidation activity of gold

David Gajan, Kevin Guillois, Pierre Delichère, Jean Marie Basset, Jean-Pierre Candy, Valerie Caps^*, Christophe Copéret, Anne Lesage, Lyndon Emsley

^*Corresponding author for this work

Physical Sciences and Engineering

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

122 Scopus citations

Abstract

(Figure Presented) Well-defined and perfectly dispersed [(≡SiO)Au^I] surface species supported on silica have been obtained via surface organometallic chemistry and transformed upon mild reduction (H₂, 300°C) into small (1.8 ± 0.6 nm) Au particles supported on silica passivated with SiMe₃ functionalities. Improved performance in liquid-phase aerobic epoxidation has been achieved, and the intrinsic activity of gold in oxidation is revealed.

Original language	English (US)
Pages (from-to)	14667-14669
Number of pages	3
Journal	Journal of the American Chemical Society
Volume	131
Issue number	41
DOIs	https://doi.org/10.1021/ja903730q
State	Published - Oct 21 2009

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja903730q

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Gajan, D., Guillois, K., Delichère, P., Basset, J. M., Candy, J.-P., Caps, V., Copéret, C., Lesage, A., & Emsley, L. (2009). Gold nanoparticles supported on passivated silica: Access to an efficient aerobic epoxidation catalyst and the intrinsic oxidation activity of gold. Journal of the American Chemical Society, 131(41), 14667-14669. https://doi.org/10.1021/ja903730q

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abstract = "(Figure Presented) Well-defined and perfectly dispersed [(≡SiO)AuI] surface species supported on silica have been obtained via surface organometallic chemistry and transformed upon mild reduction (H2, 300°C) into small (1.8 ± 0.6 nm) Au particles supported on silica passivated with SiMe3 functionalities. Improved performance in liquid-phase aerobic epoxidation has been achieved, and the intrinsic activity of gold in oxidation is revealed.",

author = "David Gajan and Kevin Guillois and Pierre Delich{\`e}re and Basset, {Jean Marie} and Jean-Pierre Candy and Valerie Caps and Christophe Cop{\'e}ret and Anne Lesage and Lyndon Emsley",

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Gajan, D, Guillois, K, Delichère, P, Basset, JM, Candy, J-P, Caps, V, Copéret, C, Lesage, A & Emsley, L 2009, 'Gold nanoparticles supported on passivated silica: Access to an efficient aerobic epoxidation catalyst and the intrinsic oxidation activity of gold', Journal of the American Chemical Society, vol. 131, no. 41, pp. 14667-14669. https://doi.org/10.1021/ja903730q

TY - JOUR

T1 - Gold nanoparticles supported on passivated silica

T2 - Access to an efficient aerobic epoxidation catalyst and the intrinsic oxidation activity of gold

AU - Gajan, David

AU - Guillois, Kevin

AU - Delichère, Pierre

AU - Basset, Jean Marie

AU - Candy, Jean-Pierre

AU - Caps, Valerie

AU - Copéret, Christophe

AU - Lesage, Anne

AU - Emsley, Lyndon

PY - 2009/10/21

Y1 - 2009/10/21

N2 - (Figure Presented) Well-defined and perfectly dispersed [(≡SiO)AuI] surface species supported on silica have been obtained via surface organometallic chemistry and transformed upon mild reduction (H2, 300°C) into small (1.8 ± 0.6 nm) Au particles supported on silica passivated with SiMe3 functionalities. Improved performance in liquid-phase aerobic epoxidation has been achieved, and the intrinsic activity of gold in oxidation is revealed.

AB - (Figure Presented) Well-defined and perfectly dispersed [(≡SiO)AuI] surface species supported on silica have been obtained via surface organometallic chemistry and transformed upon mild reduction (H2, 300°C) into small (1.8 ± 0.6 nm) Au particles supported on silica passivated with SiMe3 functionalities. Improved performance in liquid-phase aerobic epoxidation has been achieved, and the intrinsic activity of gold in oxidation is revealed.

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U2 - 10.1021/ja903730q

DO - 10.1021/ja903730q

M3 - Article

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AN - SCOPUS:70350058973

SN - 0002-7863

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SP - 14667

EP - 14669

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 41

ER -

Gold nanoparticles supported on passivated silica: Access to an efficient aerobic epoxidation catalyst and the intrinsic oxidation activity of gold

Abstract

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