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A Study of Graphene‐Based Copper Catalysts: Copper(I) Nanoplatelets for Batch and Continuous‐Flow Applications
Author(s) -
De Angelis Sonia,
Franco Mario,
Triminì Alessandra,
González Ana,
Sainz Raquel,
Degennaro Leonardo,
Romanazzi Giuseppe,
Carlucci Claudia,
Petrelli Valentina,
de la Esperanza Alejandro,
Goñi Asier,
Ferritto Rafael,
Aceña José Luis,
Luisi Renzo,
Cid M. Belén
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201900781
Subject(s) - graphene , catalysis , graphite , alkyne , copper , oxide , materials science , carbon black , chemical engineering , carbon fibers , nanotechnology , chemistry , organic chemistry , metallurgy , composite material , composite number , natural rubber , engineering
The use of graphene derivatives as supports improves the properties of heterogeneous catalysts, with graphene oxide (GO) being the most frequently employed. To explore greener possibilities as well as to get some insights into the role of the different graphenic supports (GO, rGO, carbon black, and graphite nanoplatelets), we prepared, under the same standard conditions, a variety of heterogeneous Cu catalysts and systematically evaluated their composition and catalytic activity in azide–alkyne cycloadditions as a model reaction. The use of sustainable graphite nanoplatelets (GNPs) afforded a stable Cu I catalyst with good recyclability properties, which are compatible with flow conditions, and able to catalyze other reactions such as the regio‐ and stereoselective sulfonylation of alkynes (addition reaction) and the Meerwein arylation (single electron transfer process).