Synthesis of graphene by low-temperature exfoliation and reduction of graphite oxide under ambient atmosphere

We firstly report a facile approach to produce few-layered graphene sheets by low-temperature (130 degrees C) exfoliation and reduction of graphite oxide under ambient atmosphere with the aid of HCl. The obtained graphene materials exhibited high BET specific surface area (similar to 500 m(2) g(-1)) and excellent electrical conductivity (similar to 1200 S m(-1)).