Roughening of Pt nanoparticles induced by surface-oxide formation

T. Zhu; E.J.M. Hensen; R.A. Santen, van; N. Tian; S.-G. Sun; P. Kaghazchi; T. Jacob

doi:10.1039/c2cp44252c

Roughening of Pt nanoparticles induced by surface-oxide formation

T. Zhu
, E.J.M. Hensen
, R.A. Santen, van
, N. Tian
, S.-G. Sun
, P. Kaghazchi
, T. Jacob

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

24 Citations (Scopus)

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Abstract

Using density functional theory (DFT) and thermodynamic considerations we studied the equilibrium shape of Pt nanoparticles (NPs) under electrochemical conditions. We found that at very high oxygen coverage, obtained at high electrode potentials, the experimentally-observed tetrahexahedral (THH) NPs consist of high-index (520) faces. Since high-index surfaces often show higher (electro-)chemical activity in comparison to their close-packed counterparts, the THH NPs can be promising candidates for various (electro-)catalytic applications.

Original language	English
Pages (from-to)	2268-2272
Journal	Physical Chemistry Chemical Physics
Volume	15
Issue number	7
DOIs	https://doi.org/10.1039/c2cp44252c
Publication status	Published - 2013

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title = "Roughening of Pt nanoparticles induced by surface-oxide formation",

abstract = "Using density functional theory (DFT) and thermodynamic considerations we studied the equilibrium shape of Pt nanoparticles (NPs) under electrochemical conditions. We found that at very high oxygen coverage, obtained at high electrode potentials, the experimentally-observed tetrahexahedral (THH) NPs consist of high-index (520) faces. Since high-index surfaces often show higher (electro-)chemical activity in comparison to their close-packed counterparts, the THH NPs can be promising candidates for various (electro-)catalytic applications.",

author = "T. Zhu and E.J.M. Hensen and \{Santen, van\}, R.A. and N. Tian and S.-G. Sun and P. Kaghazchi and T. Jacob",

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T1 - Roughening of Pt nanoparticles induced by surface-oxide formation

AU - Zhu, T.

AU - Hensen, E.J.M.

AU - Santen, van, R.A.

AU - Tian, N.

AU - Sun, S.-G.

AU - Kaghazchi, P.

AU - Jacob, T.

PY - 2013

Y1 - 2013

N2 - Using density functional theory (DFT) and thermodynamic considerations we studied the equilibrium shape of Pt nanoparticles (NPs) under electrochemical conditions. We found that at very high oxygen coverage, obtained at high electrode potentials, the experimentally-observed tetrahexahedral (THH) NPs consist of high-index (520) faces. Since high-index surfaces often show higher (electro-)chemical activity in comparison to their close-packed counterparts, the THH NPs can be promising candidates for various (electro-)catalytic applications.

AB - Using density functional theory (DFT) and thermodynamic considerations we studied the equilibrium shape of Pt nanoparticles (NPs) under electrochemical conditions. We found that at very high oxygen coverage, obtained at high electrode potentials, the experimentally-observed tetrahexahedral (THH) NPs consist of high-index (520) faces. Since high-index surfaces often show higher (electro-)chemical activity in comparison to their close-packed counterparts, the THH NPs can be promising candidates for various (electro-)catalytic applications.

U2 - 10.1039/c2cp44252c

DO - 10.1039/c2cp44252c

M3 - Article

C2 - 23303314

SN - 1463-9076

VL - 15

SP - 2268

EP - 2272

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 7

ER -

Roughening of Pt nanoparticles induced by surface-oxide formation

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