Journal
RSC ADVANCES
Volume 4, Issue 101, Pages 58005-58010Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra08608b
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Funding
- National Natural Science Foundation of China [21203236]
- Guangdong and Shenzhen Innovative Research Team Program [2011D052, KYPT20121228160843692]
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Reduced graphene oxide nano-sheets encapsulated copper spherical particles (Cu@rGO) were obtained through a simple electrostatic self-assembly process followed by chemical reduction. The oxidation resistance of Cu spherical particles was considerably enhanced by the coating of rGO nano-sheets. XRD results show that the core-shell structured Cu@rGO did not exhibit any sign of oxidation in air after storage at room temperature for 70 days or after heat treatment at 130 degrees C for 1.5 h. Furthermore, the rGO wrapped on the surface of Cu particles could transfer the two-dimensional rGO nano-sheets into three-dimensional (3D) networks. The Cu@rGO particles with 3D structure might have promising potential applications in thermal management, electrically conductive interconnection, electrodes, etc.
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