Core-Shell Bimetallic Nanoparticles Robustly Fixed on the Outermost Surface of Magnetic Silica Microspheres

Title
Core-Shell Bimetallic Nanoparticles Robustly Fixed on the Outermost Surface of Magnetic Silica Microspheres
Authors
박혜헌우경자안재평
Keywords
composites; nanoparticles; catalyst synthesis; heterogeneous catalysis; core-shell
Issue Date
2013-03
Publisher
Scientific Reports
Citation
VOL 3, 1497-1-1497-7
Abstract
The major challenges in practically utilising the immense potential benefits of nanomaterials are controlling aggregation, recycling the nanomaterials, and fabricating well-defined nanoparticulate materials using innovative methods.Wepresent a novel innovative synthetic strategy for core–shell bimetallic nanoparticles that are well-defined, ligand-free, and robustly fixed on the outermost surface of recyclable magnetic silica microspheres. The strategy includes seeding, coalescing the seeds to cores, and then growing shells from the cores on aminopropyl-functionalised silica microspheres so that the cores and aminopropyl moieties are robustly embedded in the shell materials. The representative Au–Ag bimetallic nanoparticles fixed on the microsphere showed excellent catalytic performance that remained consistent during repeated catalytic cycles.
URI
http://pubs.kist.re.kr/handle/201004/44632
ISSN
20452322
Appears in Collections:
KIST Publication > Article
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