Hydrogen Storage in Hybrid of Layered Double Hydroxides/Reduced Graphene Oxide Using Spillover Mechanism, Ali A. Ensafi, Mehdi Jafari-Asl, Afshin Nabiyan, Mohammad Dinar, B. Rezaei,Energy, 2016, 99, 103-114.
New efﬁcient hydrogen storage hybrids were fabricated based on hydrogen spillover mechanism,
including chemisorptions and dissociation of H2 on the surface of LDH (layered double hydroxides)
and diffusion of H to rGO (reduced graphene oxide). The structures and compositions of all of the
hybrids (LDHs/rGO) have been veriﬁed using different methods including transmission electron micro-
scopy, X ray diffraction spectroscopy, infrared spectroscopy and BrunauereEmmetteTeller analysis. Then,
the abilities of the LDHs/rGOs, as hydrogen spillover, were investigated by electrochemical methods. In
addition, the LDHs/rGOs were decorated with palladium, using redox replacement process, and their
hydrogen spillover properties were studied. The results showed that the hydrogen adsorption/desorption
kinetics, hydrogen storage capacities and stabilities of Pd #LDH/rGOs are better than Pd/rGO.
Finally presence of different polymers (synthesis with monomers, 4eaminophenol, 4eaminothiophenol,
o-phenylenediamine and p-phenylenediamine) at the surface of the Pd#LDH/rGOs on hydrogen storage
were studied. The results showed that presence of o-phenylenediamine and p-phenylenediamine im-
proves the kinetics of the hydrogen adsorption/desorption and increase the capacity of the hydrogen