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. 2015 Mar 12;5:9055. doi: 10.1038/srep09055

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(a) Discharge/charge profiles of SnO₂ and SnO₂/graphene at a current density of 100 mA g⁻¹, and (b) CV curves of SnO₂/graphene at a scanning rate of 0.1 mV s⁻¹, (c) Discharge/charge profiles of SnO₂/graphene at 300 mA g⁻¹, (b) at 500 mA g⁻¹, (c) at 700 mA g⁻¹, and (d) at 1000 mA g⁻¹.