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Selective Hydrogenations with AgPd Catalysts Prepared by Galvanic Exchange Reactions
Author(s) -
Calver Christina F.,
Dash Priyabrat,
Scott Robert W. J.
Publication year - 2011
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.201000346
Subject(s) - isomerization , catalysis , galvanic cell , nanoparticle , allylic rearrangement , extended x ray absorption fine structure , cluster (spacecraft) , chemistry , selectivity , absorption (acoustics) , palladium , absorption spectroscopy , photochemistry , nanotechnology , combinatorial chemistry , materials science , organic chemistry , computer science , physics , quantum mechanics , composite material , programming language
Treading on eggshells: AgPd nanoparticles were prepared by galvanic exchange reactions and used as hydrogenation catalysts for allylic alcohols. The results show that thin Pd shells on Ag cores leads to improved selectivity of hydrogenation reactions versus isomerization reactions. Extended X‐ray absorption fine structure (EXAFS) spectroscopy was used to determine that nanoparticles were more accurately described as cluster‐in‐cluster structures with Pd clusters on a central Ag core.