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HomeNanotechnologyRemarkably enhanced dynamic oxygen migration on graphene oxide supported by copper substrate

Remarkably enhanced dynamic oxygen migration on graphene oxide supported by copper substrate


The dynamic covalent properties of graphene oxide (GO) are of basic curiosity to a broad vary of scientific areas and technological purposes. It stays a problem to entry possible dynamic reactions for reversibly breaking/reforming the covalent bonds of oxygen practical teams on GO, though these reactions may be induced by photonic or mechanical routes, or mediated by adsorbed water. Right here, utilizing density practical concept calculations, we reveal the remarkably enhanced dynamic oxygen migration alongside the basal airplane of GO supported by copper substrate ([email protected]), with C–O bond breaking reactions and proton switch between neighboring epoxy and hydroxyl teams. In comparison with reactions on GO, the power obstacles of oxygen migrations on [email protected] are sharply decreased to be lower than or akin to thermal fluctuations, and in the meantime the crystallographic match between GO and copper substrate induces new oxygen migration paths on [email protected] This work sheds gentle on understanding of the steel substrate-enhanced dynamic properties of GO, and evidences the technique to tune the exercise of two-dimensional-interfacial oxygen teams for varied potential purposes.

Graphical abstract: Remarkably enhanced dynamic oxygen migration on graphene oxide supported by copper substrate

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