Functionalization of single-walled carbon nanotubes with Prussian blue

Abstract Chemical functionalization of single-walled carbon nanotubes (SWNTs) has constructed plenty of new structures with ample new properties into them. But the modification was often confined to organic molecules, either by covalence or non-covalence. In this report, SWNTs were successfully functionalized with one kind of electroactive inorganic compounds: Prussian blue (PB). And the molecular interactions between them were firstly investigated. Interestedly, π–π stacking interaction coupled with ionic interaction was found between SWNTs and PB. The electrochemical properties of SWNTs–PB were also investigated. It would pave a new pathway to manipulate molecular entities of SWNTs by cooperation with functional inorganic electroactive compounds.

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