Fe₃O₄ nanoclusters highly dispersed on a porous graphene support as an additive for improving the hydrogen storage properties of LiBH₄.

ABSTRACT: Fe₃O₄ nanoclusters anchored on porous reduced graphene oxide (Fe₃O₄@rGO) have been synthesized by a one-step hydrothermal route, and then ball milled with LiBH₄ to prepare a hydrogen storage composite with a low onset dehydrogenation temperature, and improved dehydrogenation kinetics and rehydrogenation reversibility. The LiBH₄-20 wt% Fe₃O₄@rGO composite begins to release hydrogen at 74 °C, which is 250 °C lower than for ball-milled pure LiBH₄. Moreover, the composite can release 3.36 wt% hydrogen at 400 °C within 1000 s, which is 2.52 times as high as that of pure LiBH₄. Importantly, it can uptake 5.74 wt% hydrogen at 400 °C under 5 MPa H₂, and its hydrogen absorption c

SUBMITTER: Xu G 

PROVIDER: S-EPMC9080658 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature