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Highly Active Bimetallic Nickel–Palladium Alloy Nanoparticle Catalyzed Suzuki–Miyaura Reactions
Author(s) -
Rai Rohit Kumar,
Gupta Kavita,
Behrens Silke,
Li Jun,
Xu Qiang,
Singh Sanjay Kumar
Publication year - 2015
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.201500145
Subject(s) - bimetallic strip , nanomaterial based catalyst , catalysis , palladium , nickel , nanoparticle , alloy , aryl , materials science , halide , chemistry , leaching (pedology) , inorganic chemistry , nuclear chemistry , organic chemistry , nanotechnology , alkyl , environmental science , soil science , soil water
A bimetallic Ni–Pd alloy nanoparticle catalyst with a low palladium content (Ni 0.90 Pd 0.10 nanocatalyst) was prepared and its catalytic performance in Suzuki–Miyaura reactions was evaluated along with that of other Ni–Pd nanocatalysts (with varying Ni/Pd molar ratios in the range of ≈0.25–0.75) and the corresponding monometallic, Ni and Pd, analogues. Notably, the bimetallic Ni 0.90 Pd 0.10 alloy nanocatalyst performed exceptionally well for the synthesis of biaryls by employing a wide range of substituted aryl halides and arylboronic acids having electron‐donating and electron‐withdrawing groups, and they exhibited high recyclability in water/ethanol solution at moderate reaction temperatures. Catalyst poisoning tests and leaching experiments inferred the heterogeneous nature of the Ni 0.90 Pd 0.10 nanocatalysts. The significant synergistic interactions between Ni and Pd account for the observed high catalytic efficacy of the Ni 0.90 Pd 0.10 nanocatalyst.