▎ 摘　　要

In this work, graphene nanosheets (GN) have been successfully prepared under lower carbonization temperature by using the layered compounds CoAl-LDH. A series of characterizations such as XRD, FTIR, Raman TEM, SEM, EDX, XPS and UV-vis were used to verify the formation of graphene nanosheets in the layered structure of CoAI-LDH. It can be concluded that the Co element of layered double hydroxide acted as the catalytic centers in the formation of graphene nanosheets. (C) 2016 Elsevier B.V. All rights reserved.