Journal
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
Volume 23, Issue 12, Pages 3691-3696Publisher
ELSEVIER
DOI: 10.1016/S1003-6326(13)62918-0
Keywords
cuprous oxide; reduced graphene oxide; anode material
Categories
Funding
- National Basic Research Program of China [2014CB643406]
- Major Special Project of Science and Technology of Hunan Province, China [2011FJ1005]
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A facile way was used to synthesize Cu2O/reduced graphene oxide (rGO) composites with octahedron-like morphology in aqueous solution without any surfactant. TEM images of the obtained Cu2O/rGOs reveal that the Cu2O particles and rGO distribute hierarchically and the primary Cu2O particles are encapsulated well in the graphene nanosheets. The electrochemical performance of Cu2O/rGOs is enhanced compared with bare Cu2O when they are employed as anode materials for lithium ion batteries. The Cu2O/rGO composites maintain a reversible capacity of 348.4 mA.h/g after 50 cycles at a current density of 100 mA/g. In addition, the composites retain 305.8 mA.h/g after 60 cycles at various current densities of 50, 100, 200, 400 and 800 mA/g.
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