Catalytic activity of Au nanoparticles

Britt Hvolbæk Larsen, Ton V.W. Janssens, Bjerne Clausen, Hanne Falsig, Claus H. Christensen, Jens Kehlet Nørskov

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Au is usually viewed as an inert metal, but surprisingly it has been found that Au nanoparticles less than 3–5 nm in diameter are catalytically active for several chemical reactions. We discuss the origin of this effect, focusing on the way in which the chemical activity of Au may change with particle size. We find that the fraction of low-coordinated Au atoms scales approximately with the catalytic activity, suggesting that atoms on the corners and edges of Au nanoparticles are the active sites. This effect is explained using density functional calculations.
Original languageEnglish
JournalNano Today
Volume2
Issue number4
Pages (from-to)14-18
ISSN1748-0132
DOIs
Publication statusPublished - 2007

Cite this

Larsen, B. H., Janssens, T. V. W., Clausen, B., Falsig, H., Christensen, C. H., & Nørskov, J. K. (2007). Catalytic activity of Au nanoparticles. Nano Today, 2(4), 14-18. https://doi.org/10.1016/S1748-0132(07)70113-5
Larsen, Britt Hvolbæk ; Janssens, Ton V.W. ; Clausen, Bjerne ; Falsig, Hanne ; Christensen, Claus H. ; Nørskov, Jens Kehlet. / Catalytic activity of Au nanoparticles. In: Nano Today. 2007 ; Vol. 2, No. 4. pp. 14-18.
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Larsen, BH, Janssens, TVW, Clausen, B, Falsig, H, Christensen, CH & Nørskov, JK 2007, 'Catalytic activity of Au nanoparticles', Nano Today, vol. 2, no. 4, pp. 14-18. https://doi.org/10.1016/S1748-0132(07)70113-5

Catalytic activity of Au nanoparticles. / Larsen, Britt Hvolbæk; Janssens, Ton V.W.; Clausen, Bjerne; Falsig, Hanne; Christensen, Claus H.; Nørskov, Jens Kehlet.

In: Nano Today, Vol. 2, No. 4, 2007, p. 14-18.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Catalytic activity of Au nanoparticles

AU - Larsen, Britt Hvolbæk

AU - Janssens, Ton V.W.

AU - Clausen, Bjerne

AU - Falsig, Hanne

AU - Christensen, Claus H.

AU - Nørskov, Jens Kehlet

PY - 2007

Y1 - 2007

N2 - Au is usually viewed as an inert metal, but surprisingly it has been found that Au nanoparticles less than 3–5 nm in diameter are catalytically active for several chemical reactions. We discuss the origin of this effect, focusing on the way in which the chemical activity of Au may change with particle size. We find that the fraction of low-coordinated Au atoms scales approximately with the catalytic activity, suggesting that atoms on the corners and edges of Au nanoparticles are the active sites. This effect is explained using density functional calculations.

AB - Au is usually viewed as an inert metal, but surprisingly it has been found that Au nanoparticles less than 3–5 nm in diameter are catalytically active for several chemical reactions. We discuss the origin of this effect, focusing on the way in which the chemical activity of Au may change with particle size. We find that the fraction of low-coordinated Au atoms scales approximately with the catalytic activity, suggesting that atoms on the corners and edges of Au nanoparticles are the active sites. This effect is explained using density functional calculations.

U2 - 10.1016/S1748-0132(07)70113-5

DO - 10.1016/S1748-0132(07)70113-5

M3 - Journal article

VL - 2

SP - 14

EP - 18

JO - Nano Today

JF - Nano Today

SN - 1748-0132

IS - 4

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Larsen BH, Janssens TVW, Clausen B, Falsig H, Christensen CH, Nørskov JK. Catalytic activity of Au nanoparticles. Nano Today. 2007;2(4):14-18. https://doi.org/10.1016/S1748-0132(07)70113-5