▎ 摘　　要

Pd nanoparticles were confined in grass-like graphene layers on monolithic cordierite by using NH2-ion liquid C(7)H(14)ClN(3)functionalized graphene sheets. These were used as the catalyst for the hydrogenation of 4-carboxybenzaldehyde. The catalyst exhibited high stability compared to Pd/activated carbon catalyst due to the inhibition of Pd leaching and aggregation. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.