Recyclable palladium-graphene nanocomposite catalysts containing ionic polymers: efficient Suzuki coupling reactions

Title
Recyclable palladium-graphene nanocomposite catalysts containing ionic polymers: efficient Suzuki coupling reactions
Authors
백경열Tae Hui KwonKie Yong ChoHo Gyu YoonB. Moon Kim
Issue Date
2017-02
Publisher
RSC advances
Citation
VOL 7, NO 19-11690
Abstract
Palladium nanoparticles on ionic polymer-doped graphene (Pd-IPG) nanocomposite catalysts have been investigated for efficient Suzuki coupling reactions. This combination effected highly accelerated Suzuki coupling reactions due to several advantageous features associated with the flanking ionic polymer part of the catalyst system. These include a high level of Pd incorporation, excellent dispersion stability, and increased accessibility and diffusion of the substrates onto the surface of Pd NPs. The enhanced availability of the Pd catalyst to the reacting substrates is believed to allow for ca. 16-fold higher catalytic activity than that of Pd-graphene without the ionic polymer. Moreover, high recycling capability of the catalyst (10 times) in combination with excellent product yields (>96%) and no significant leaching of the catalyst upon hot-filtration test suggest that the Pd-IPG nanocomposite catalysts have high reusability with significant retention (>95%)of the Pd species.
URI
http://pubs.kist.re.kr/handle/201004/66992
ISSN
2046-2069
Appears in Collections:
KIST Publication > Article
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