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Carrier‐Induced Modification of Palladium Nanoparticles on Porous Boron Nitride for Alkyne Semi‐Hydrogenation
Author(s) -
Büchele Simon,
Chen Zupeng,
Fako Edvin,
Krumeich Frank,
Hauert Roland,
Safonova Olga V.,
López Núria,
Mitchell Sharon,
PérezRamírez Javier
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202005842
Subject(s) - boron nitride , palladium , materials science , nanoparticle , catalysis , boron , porosity , surface modification , alkyne , nanotechnology , chemical engineering , nitride , particle size , chemistry , organic chemistry , composite material , layer (electronics) , engineering
Chemical modifiers enhance the efficiency of metal catalysts in numerous applications, but their introduction often involves toxic or expensive precursors and complicates the synthesis. Here, we show that a porous boron nitride carrier can directly modify supported palladium nanoparticles, originating unparalleled performance in the continuous semi‐hydrogenation of alkynes. Analysis of the impact of various structural parameters reveals that using a defective high surface area boron nitride and ensuring a palladium particle size of 4–5 nm is critical for maximizing the specific rate. The combined experimental and theoretical analyses point towards boron incorporation from defects in the support to the palladium subsurface, creating the desired isolated ensembles determining the selectivity. This practical approach highlights the unexplored potential of using tailored carriers for catalyst design.