Electrochemical removal of surfactants from Pt nanocubes

• Electrochemical potential cycling in 0.5 M NaOH is applied to clean Pt NCbs.
• PVP and oleylamine and/or oleic acid on Pt NCbs are efficiently removed.
• The surface structure of Pt NCbs is preserved.

A straightforward procedure for removing commonly used surfactants in nanoparticle synthesis, PVP and oleylamine/oleic acid, from Pt nanocubes by electrochemical potential cycling in 0.5 M NaOH is reported. The cyclic voltammetric results demonstrate that this procedure can effectively remove surfactants from Pt nanocubes, while preserving their surface structure.

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