Abstract
Graphene oxide was functionalized with simultaneous reduction to produce phosphonated reduced graphene oxide in a novel, fully scalable, one-pot method. The phosphonic derivative of graphene was obtained through the reaction of graphene oxide with phosphorus trichloride in water. The newly synthesized reduced graphene oxide derivative was fully characterized by using spectroscopic methods along with thermal analysis. The morphology of the samples was examined by electron microscopy. The electrical studies revealed that the functionalized graphene derivative behaves in a way similar to chemically or thermally reduced graphene oxide, with an activation energy of 0.014 eV.
Highlights
Graphene oxide (GO) with its multifunctionality attracts interest in different fields of science
If GO is introduced into this reaction mixture the carboxylic groups react with PCl3 to produce an intermediate product, which is converted into the respective phosphonate derivative in the reaction with H3PO3
The development of industrially applicable methods for the production of graphene derivatives will pave the way for a wider spectrum of applications
Summary
Graphene oxide (GO) with its multifunctionality attracts interest in different fields of science. Only a few examples of graphene derivatives functionalized with phosphonic acid can be found in the literature. We present a reaction adapted from classical organic chemistry as a convenient route for the functionalization of graphene with phosphonate groups.
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