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Restructuring of Gold‐Palladium Alloyed Nanoparticles: A Step towards More Active Catalysts for Oxidation of Alcohols
Author(s) -
Silva Tiago A. G.,
Ferraz Camila P.,
Gonçalves Renato V.,
TeixeiraNeto Erico,
Wojcieszak Robert,
Rossi Liane M.
Publication year - 2019
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.201900553
Subject(s) - calcination , catalysis , alcohol oxidation , benzyl alcohol , nanoparticle , palladium , restructuring , materials science , chemistry , inorganic chemistry , chemical engineering , nanotechnology , organic chemistry , finance , engineering , economics
AuPd alloyed nanoparticles are regarded as very active catalysts for oxidation of alcohols. However we found that their catalytic activity can be further improved after calcination in air, which lead to the restructuring of alloyed AuPd nanoparticles and PdO segregation on the surface. The alloyed character was partially recovered upon reduction with H 2 atmosphere, but the yet Pd‐rich surface was less active in the oxidation of the model molecule benzyl alcohol.