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Dimensional Effects in the Carbidization of Supported Iron Nanoparticles
Author(s) -
Chernavskii Petr A.,
Zaikovskii Vladimir I.,
Pankina Galina V.,
Khodakov Andrei Y.
Publication year - 2013
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201200960
Subject(s) - nanoparticle , carbide , kinetics , particle size , syngas , catalysis , fischer–tropsch process , nanotechnology , computer science , materials science , chemical engineering , chemistry , metallurgy , physics , organic chemistry , engineering , quantum mechanics , selectivity
Iron‐clad results: The effect of nanoparticle size on the kinetics of iron carbidization on silica‐supported catalysts was studied by using an in situ magnetic method combined with simultaneous analysis of the reaction products. The activation energy of carbide formation in both CO and syngas grew with a decrease in the particle size of iron: Smaller iron carbide particles ( d =9 nm) appear to be less stable than their larger counterparts.