Periodicity and atomic ordering in nanosized particles of crystals

Valeri Petkov; Nick Bedford; Marc R. Knecht; Michael G. Weir; Richard M. Crooks; Wenjie Tang; Graeme Henkelman; Anatoly Frenkel

doi:10.1021/jp801195c

Periodicity and atomic ordering in nanosized particles of crystals

Valeri Petkov, Nick Bedford, Marc R. Knecht, Michael G. Weir, Richard M. Crooks, Wenjie Tang, Graeme Henkelman, Anatoly Frenkel

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

69 Scopus citations

Abstract

Evidence is presented that nanosized particles of crystals do not necessarily adopt a periodic atomic structure as their bulk counterparts do and/or as predicted by theory. As an example, 1.6-nm Au particles grown inside a dendrimeric host are studied and found to possess a heavily disordered, metallic glass-type structure. The nanoparticle's structure evolves toward the face-centered-cubic-type lattice of bulk Au only upon removal of solvent. The results show that periodicity, which rules the structure and properties of bulk crystals, is less of a constraint at the nanoscale level and, therefore, may be used as tunable parameter in nanotechnology research.

Original language	English
Pages (from-to)	8907-8911
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	112
Issue number	24
DOIs	https://doi.org/10.1021/jp801195c
State	Published - Jun 19 2008

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abstract = "Evidence is presented that nanosized particles of crystals do not necessarily adopt a periodic atomic structure as their bulk counterparts do and/or as predicted by theory. As an example, 1.6-nm Au particles grown inside a dendrimeric host are studied and found to possess a heavily disordered, metallic glass-type structure. The nanoparticle's structure evolves toward the face-centered-cubic-type lattice of bulk Au only upon removal of solvent. The results show that periodicity, which rules the structure and properties of bulk crystals, is less of a constraint at the nanoscale level and, therefore, may be used as tunable parameter in nanotechnology research.",

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T1 - Periodicity and atomic ordering in nanosized particles of crystals

AU - Petkov, Valeri

AU - Bedford, Nick

AU - Knecht, Marc R.

AU - Weir, Michael G.

AU - Crooks, Richard M.

AU - Tang, Wenjie

AU - Henkelman, Graeme

AU - Frenkel, Anatoly

PY - 2008/6/19

Y1 - 2008/6/19

N2 - Evidence is presented that nanosized particles of crystals do not necessarily adopt a periodic atomic structure as their bulk counterparts do and/or as predicted by theory. As an example, 1.6-nm Au particles grown inside a dendrimeric host are studied and found to possess a heavily disordered, metallic glass-type structure. The nanoparticle's structure evolves toward the face-centered-cubic-type lattice of bulk Au only upon removal of solvent. The results show that periodicity, which rules the structure and properties of bulk crystals, is less of a constraint at the nanoscale level and, therefore, may be used as tunable parameter in nanotechnology research.

AB - Evidence is presented that nanosized particles of crystals do not necessarily adopt a periodic atomic structure as their bulk counterparts do and/or as predicted by theory. As an example, 1.6-nm Au particles grown inside a dendrimeric host are studied and found to possess a heavily disordered, metallic glass-type structure. The nanoparticle's structure evolves toward the face-centered-cubic-type lattice of bulk Au only upon removal of solvent. The results show that periodicity, which rules the structure and properties of bulk crystals, is less of a constraint at the nanoscale level and, therefore, may be used as tunable parameter in nanotechnology research.

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EP - 8911

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 24

ER -

Periodicity and atomic ordering in nanosized particles of crystals

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