▎ 摘　　要

Reduced graphene oxide (RGO) has been extensively investigated in past reports. The reduced approaches are greatly important for RGO sheets applied in electrical, optical and electrochemical fields. This article supplies a facile route to prepare RGO sheets and we carefully investigates the structures and electrical properties of these RGO sheets. It is believed that the well-defined RGO sheets are effectively prepared by thermal treatment at 200 degrees C for 2 h. We think this approach is very valuable for the applications of RGO sheets.