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Platinum Sintering on H‐ZSM‐5 Followed by Chemometrics of CO Adsorption and 2D Pressure‐Jump IR Spectroscopy of Adsorbed Species
Author(s) -
Rivallan Mickaël,
Seguin Etienne,
Thomas Sébastien,
Lepage Muriel,
Takagi Nobuyuki,
Hirata Hirohito,
ThibaultStarzyk Frédéric
Publication year - 2010
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.200905181
Subject(s) - sintering , platinum , adsorption , platinum nanoparticles , zeolite , chemometrics , nanoparticle , spectroscopy , infrared spectroscopy , catalysis , jump , materials science , chemical engineering , mesoporous material , chemistry , nanotechnology , composite material , organic chemistry , physics , chromatography , engineering , quantum mechanics
Jump to it! 2D IR pressure‐jump spectroscopy of adsorbed CO can be used to assess the accessibility and location of platinum nanoparticles supported on a zeolite and investigate the behavior of Pt atoms after thermal treatment (activation, catalytic reaction, sintering). Different Pt nanoparticle sintering mechanisms were observed in the mesopores and on the external surface of the ZSM‐5 support (see picture; HF=high and LF=low frequency).