M
Michael J. Hostetler
Researcher at University of North Carolina at Chapel Hill
Publications - 18
Citations - 6669
Michael J. Hostetler is an academic researcher from University of North Carolina at Chapel Hill. The author has contributed to research in topics: Gold cluster & Monolayer. The author has an hindex of 16, co-authored 16 publications receiving 6534 citations.
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Journal ArticleDOI
Alkanethiolate Gold Cluster Molecules with Core Diameters from 1.5 to 5.2 nm: Core and Monolayer Properties as a Function of Core Size
Michael J. Hostetler,Julia E. Wingate,Chuan-Jian Zhong,Jay E. Harris,Richard W. Vachet,Michael R. Clark,J. David Londono,Stephen J. Green,Jennifer J. Stokes,George D. Wignall,Gary L. Glish,Marc D. Porter,Neal D. Evans,Royce W. Murray +13 more
TL;DR: The mean size of the gold core in the synthesis of dodecanethiolate-stabilized Au cluster compounds can be finely adjusted by choice of the Au:dodecanETHiolate ratio and the temperature and rate at which the reduction is conducted as mentioned in this paper.
Journal ArticleDOI
Gold nanoelectrodes of varied size: Transition to molecule-like charging
Shaowei Chen,Roychelle S. Ingram,Michael J. Hostetler,Jeremy J. Pietron,Royce W. Murray,Royce W. Murray,T. Gregory Schaaff,Joseph T. Khoury,Marcos M. Alvarez,Robert L. Whetten +9 more
TL;DR: A transition from metal-like double-layer capacitive charging to redox-like charging was observed in electrochemical ensemble Coulomb staircase experiments on solutions of gold nanoparticles of varied core size, consistent with new near-infrared spectroscopic data showing an emerging gap between the highest occupied and lowest unoccupied orbitals.
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Dynamics of Place-Exchange Reactions on Monolayer-Protected Gold Cluster Molecules
TL;DR: In this article, the dynamics and mechanism of this reaction were probed by determining its kinetic order and final equilibrium position relative to incoming (R‘S) and initial (RS) protecting thiolate ligands.
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Monolayers in Three Dimensions: Synthesis and Electrochemistry of ω-Functionalized Alkanethiolate-Stabilized Gold Cluster Compounds
TL;DR: In this paper, the authors describe a versatile synthesis of ω-functionalized alkanethiolate -Au cluster compounds, based on place exchange reactions occurring when a ωsubstituted alkarnethiol is added to an alkanetiolate-cluster solution.
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Infrared Spectroscopy of Three-Dimensional Self-Assembled Monolayers: N-Alkanethiolate Monolayers on Gold Cluster Compounds
TL;DR: In this paper, the structure of alkanethiolate monolayers adsorbed onto nanometer-sized gold clusters has been investigated using infrared spectroscopy, and it has been found that the smaller chain lengths are relatively disordered, with large amounts of gauche defects present, and thus most resemble the free alkanes in the liquid state.