▎ 摘　　要

Graphene oxide is reduced by Ar-H-2 mixture gas at 200 degrees C with the aid of Pd. The nano-size Pd deposited on the surface of GO catalyzes the H-2 to dissociate into high active atomic hydrogen species [H], which would reduce the graphene oxide. Such reduction method is a sample and environment benign process, which avoids heteroatoms introduced and high temperature energy used. (C) 2017 Elsevier B.V.All rights reserved.