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Nanoscale Phase Segregation of Mixed Thiolates on Gold Nanoparticles
Author(s) -
Harkness Kellen M.,
Balinski Andrzej,
McLean John A.,
Cliffel David E.
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201102882
Subject(s) - nanoscopic scale , colloidal gold , monolayer , materials science , nanoparticle , phase (matter) , nanotechnology , anisotropy , chemical physics , chemistry , optics , physics , organic chemistry
A simple screening method : Phase segregation and domain formation is observed within the protecting monolayer of gold nanoparticles (AuNPs) using ion mobility mass spectrometry (IM‐MS), a two‐dimensional gas‐phase separation technique. Experimental data are compared to a theoretical model. Deviations from this model provide evidence for nanophase separation resulting in anisotropic AuNPs.