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Improved Selectivity by Stabilizing and Exposing Active Phases on Supported Pd Nanoparticles in Acetylene‐Selective Hydrogenation
Author(s) -
Shao Lidong,
Zhang Bingsen,
Zhang Wei,
Teschner Detre,
Girgsdies Frank,
Schlögl Robert,
Su Dang Sheng
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201202608
Subject(s) - acetylene , palladium , selectivity , diffusion , nanoparticle , metal particle , particle (ecology) , chemical engineering , materials science , chemistry , computer science , catalysis , combinatorial chemistry , nanotechnology , physics , organic chemistry , thermodynamics , engineering , geology , oceanography
Palladium dynamics : Under hydrogenation conditions, saturating over‐active palladium by carbon diffusion leads to a stable and selective particle surface. By choosing supports with suitable geometric structures and establishing a strong interaction between supports and metal particles, accumulated species can be regularly rearranged and reaction‐selective phases can be exposed (see figure).