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In situ scanning tunneling microscopy of oxide‐supported metal clusters: Nucleation, growth, and thermal evolution of individual particles
Author(s) -
Kolmakov Andrei,
Goodman D. W.
Publication year - 2002
Publication title -
the chemical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.61
H-Index - 78
eISSN - 1528-0691
pISSN - 1527-8999
DOI - 10.1002/tcr.10045
Subject(s) - nucleation , scanning tunneling microscope , nanoparticle , annealing (glass) , cluster (spacecraft) , nanotechnology , materials science , oxide , microscopy , thermal stability , chemical engineering , in situ , chemical physics , chemistry , metallurgy , optics , physics , organic chemistry , engineering , computer science , programming language
Abstract An experimental approach was developed for imaging the nucleation and growth of individual oxide‐supported nanoparticles and their subsequent in situ chemical and thermal treatments by scanning tunneling microscopy (STM). The potential of the method is demonstrated for Au nanoparticles supported on a reduced TiO 2 substrate where a cluster‐by‐cluster comparison is made of the morphological evolution and stability of nanoparticles during their nucleation and thermal annealing. Using this methodology the details of the nucleation and growth kinetics can be directly observed. © 2002 The Japan Chemical Journal Forum and Wiley Periodicals, Inc., Chem Rec 2: 446–457; 2002: Published online in Wiley InterScience (www.interscience.wiley.com) DOI 10.1002/tcr.10045