Support effects on the nucleation, growth, and morphology of gold nano-clusters

Byoung Koun Min; W. T. Wallace; D. W. Goodman

doi:10.1016/j.susc.2005.10.024

Support effects on the nucleation, growth, and morphology of gold nano-clusters

Byoung Koun Min, W. T. Wallace, D. W. Goodman

Research output: Contribution to journal › Article

67 Citations (Scopus)

Abstract

The nucleation, growth, and morphology of gold (Au) clusters on an irreducible oxide (SiO ₂), highly reduced TiO _x (x ∼ 1), and less reduced TiO _x (x ∼ 2) were investigated by scanning tunneling microscopy (STM) with the goal of understanding the relationship between the nucleation, growth, and morphology of Au clusters and the reducibility of the oxide support. Au clusters show preferential nucleation and growth on a TiO _x surface compared to a SiO ₂ surface. In addition, higher densities of Au clusters were found on highly reduced TiO _x, suggesting that reduced Ti sites play a role as an active site for the nucleation and growth of Au clusters.

Original language	English
Journal	Surface Science
Volume	600
Issue number	2
DOIs	https://doi.org/10.1016/j.susc.2005.10.024
Publication status	Published - 2006 Jan 15
Externally published	Yes

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Keywords

Catalysis
Defects
Metal clusters
Nucleation
Scanning tuneling microscopy

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Condensed Matter Physics
Surfaces and Interfaces

Cite this

Min, B. K., Wallace, W. T., & Goodman, D. W. (2006). Support effects on the nucleation, growth, and morphology of gold nano-clusters. Surface Science, 600(2). https://doi.org/10.1016/j.susc.2005.10.024

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Access to Document

10.1016/j.susc.2005.10.024