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Well‐Arranged and Confined Incorporation of PdCo Nanoparticles within a Hollow and Porous Metal–Organic Framework for Superior Catalytic Activity
Author(s) -
Choi Sora,
Oh Moonhyun
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201812827
Subject(s) - bimetallic strip , nanoparticle , zeolitic imidazolate framework , polystyrene , metal organic framework , nanomaterial based catalyst , porosity , catalysis , dispersity , materials science , noble metal , microporous material , chemical engineering , imidazolate , nanotechnology , chemistry , inorganic chemistry , polymer chemistry , polymer , adsorption , organic chemistry , composite material , engineering
Abstract A convenient method for the confined incorporation of highly active bimetallic PdCo nanocatalysts within a hollow and porous metal–organic framework (MOF) support is presented. Several chemical conversions occur simultaneously during the one‐step low temperature pyrolysis of well‐designed polystyrene@ZIF‐67/Pd 2+ core–shell microspheres, where ZIF (zeolitic imidazolate framework) is a subclass of MOF: the polystyrene core is removed, resulting in a beneficial hollow and porous ZIF support; the ZIF‐67 shell acts as a well‐defined porous support and as a felicitous Co 2+ supplier for metal nanoparticle formation; and Pd 2+ and Co 2+ are reduced to form catalytically active bimetallic PdCo nanoparticles in the well‐defined micropores, inducing the confined growth of PdCo nanoparticles with excellent dispersity.