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A Co3O4/N-doped reduced graphene oxide (N-doped GN) nanocomposite was successfully synthesized by a facile freeze-drying method and heat-treated subsequently. When used as an anode material for lithium ion batteries (LIBs), the composite showed superb cycling stability and rate performance. More remarkably, the Co3O4/N-doped GN composite achieved an ultrahigh reversible capacity of 950mAhg−1 exceeds...
A ZnO/N-doped reduced graphene oxide (N-doped GN) composite was synthesized by a pressure-adjusted hydrothermal in ammonia atmosphere. When used as an anode material for lithium ion batteries (LIBs), the ZnO/N-doped GN-3 prepared at 1MPa, which contains 8.7% N, achieved an ultrahigh reversible capacity of 1100mAhg−1 after 100cycles at a current density of 0.2Ag−1 that exceeds the theoretical capacity...
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