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Influence of Methyl Halide Treatment on Gold Nanoparticles Supported on Activated Carbon
Author(s) -
Sá Jacinto,
Goguet Alexandre,
Taylor S. F. Rebecca,
Tiruvalam Ramchandra,
Kiely Christopher J.,
Nachtegaal Maarten,
Hutchings Graham J.,
Hardacre Christopher
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.201102066
Subject(s) - halide , colloidal gold , nanoparticle , halogen , carbon fibers , metal , activated carbon , chemistry , materials science , nanotechnology , chemical engineering , organic chemistry , composite number , adsorption , composite material , alkyl , engineering
Catalyzing concept : Methyl halides have been used to disperse large (around 20 nm) gold nanoparticles supported on carbon into dispersed gold atoms/dimers at low temperature and atmospheric pressure (see picture). The process occurs through the progressive removal of gold–halogen entities from the metal nanoparticles and a gradual decrease in the size of the gold nanoparticles on the minute timescale.