Resolving the Structure of Active Sites on Platinum Catalytic Nanoparticles

Lan Yun Chang; Amanda S. Barnard; Lionel Cervera Gontard; Rafal E. Dunin-Borkowski

doi:10.1021/nl101642f

Resolving the Structure of Active Sites on Platinum Catalytic Nanoparticles

Lan Yun Chang, Amanda S. Barnard, Lionel Cervera Gontard, Rafal E. Dunin-Borkowski

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

Abstract

Accurate understanding of the structure of active sites is fundamentally important in predicting catalytic properties of heterogeneous nanocatalysts. We present an accurate determination of both experimental and theoretical atomic structures of surface monatomic steps on industrial platinum nanoparticles. This comparison reveals that the edges of nanoparticles can significantly alter the atomic positions of monatomic steps in their proximity, which can lead to substantial deviations in the catalytic properties compared with the extended surfaces.

Original language	English
Journal	Nano Letters
Volume	10
Issue number	8
Pages (from-to)	3073-3076
ISSN	1530-6984
DOIs	https://doi.org/10.1021/nl101642f
Publication status	Published - 2010

Keywords

transmission electron microscopy
surface steps
density functional theory calculations
Platinum catalytic nanoparticles

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title = "Resolving the Structure of Active Sites on Platinum Catalytic Nanoparticles",

abstract = "Accurate understanding of the structure of active sites is fundamentally important in predicting catalytic properties of heterogeneous nanocatalysts. We present an accurate determination of both experimental and theoretical atomic structures of surface monatomic steps on industrial platinum nanoparticles. This comparison reveals that the edges of nanoparticles can significantly alter the atomic positions of monatomic steps in their proximity, which can lead to substantial deviations in the catalytic properties compared with the extended surfaces.",

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AU - Gontard, Lionel Cervera

AU - Dunin-Borkowski, Rafal E.

PY - 2010

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AB - Accurate understanding of the structure of active sites is fundamentally important in predicting catalytic properties of heterogeneous nanocatalysts. We present an accurate determination of both experimental and theoretical atomic structures of surface monatomic steps on industrial platinum nanoparticles. This comparison reveals that the edges of nanoparticles can significantly alter the atomic positions of monatomic steps in their proximity, which can lead to substantial deviations in the catalytic properties compared with the extended surfaces.

KW - transmission electron microscopy

KW - surface steps

KW - density functional theory calculations

KW - Platinum catalytic nanoparticles

U2 - 10.1021/nl101642f

DO - 10.1021/nl101642f

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SP - 3073

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JO - Nano Letters

JF - Nano Letters

IS - 8

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Resolving the Structure of Active Sites on Platinum Catalytic Nanoparticles

Abstract

Keywords

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