Controllable synthesis and characterization of novel copper–carbon core–shell structured nanoparticles

A facile hydrothermal method was developed for preparing copper–carbon core–shell structured particles through a reaction at 160 °C in which glucose, copper sulfate pentahydrate and cetyltrimethylammonium bromide were used as starting materials. The original copper–carbon core–shell structured particles obtained were sized of 100–250 nm. The thickness of carbonaceous shells was controlled ranging from 25 to 100 nm by adjusting the hydrothermal duration time and the concentrations of glucose in the process. Products were characterized with transmission electron microscopy, X-ray diffraction, energy dispersive spectroscopy, Fourier transform infrared spectroscopy. Since no toxic materials were involved in the preparation, particles with stable carbonaceous framework and reactive surface also showed promising applications in medicine, electronics, sensors, lubricant, etc.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We reported a facile, green and cheap hydrothermal method to obtain novel copper-carbon core-shell nanoparticles. ► The as-formed particles with controllable size and morphology are antioxidant. ► The particles with organic-group-loaded surfaces and protective shells are expected to be applied in fields of medicine, electronics, sensors and lubricant.