Fabrications and evaluations of hydrogen permeation on Al2O3/CeO2/graphene (ACG) composites membrane by Hot Press Sintering (HPS). - Lee, Na-Ri; Lee, Soo-Sun; Kim, Kyoeng-Il; Kim, Whan-Gi; Ju, Hyunchul; Kim, Dong Min; Hong, Tae-Whan (International Journal of Hydrogen Energy, 2013)