Electroless deposition of platinum on graphdiyne for electrochemical sensing

Abstract

As a 2-dimension rising-star carbon material, graphdiyne exhibits many unique features (e.g., e rich alkyne structure and high π-conjugation) and has important applications in the field of electrochemical sensing. In this work, by using K2PtCl4 as the precursor, we revealed that Pt2+ can be self-reduction to form platinum nanoparticles on the surface of graphdiyne via a simple electroless deposition process and obtained a novel graphdiyne-based nanohybrid (platinum nanoparticles@graphdiyne). The resulted platinum nanoparticles can not only resolve the agglomeration and improve the conductivity of graphdiyne, but also give the graphdiyne nanohybrid superior catalytical ability. Combining with the unique affinity capability of graphdiyne to targets consisting of π-electron structures, nonylphenol and dopamine were adopted further as two representative targets consisting π-electron structure, the electrochemical sensing performances of platinum nanoparticles@graphdiyne were evaluated. The specific experiments demonstrated that the as-prepared nanohybrid sensor can exhibit the synergistic advantages of graphdiyne and platinum nanoparticles, showing superior sensing performances for nonylphenol and dopamine, and thus the related sensitive electrochemical sensors were constructed. The present work may show great potential applications for the exploitation/development of graphdiyne-based nanomaterials and electrochemical sensing of targets consisting π-electron structures.