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- W3014188493 abstract "Mg hydride is a competitive candidates for hydrogen storage based on its high gravimetric hydrogen capacity and accessibility. In this study, a small amount of KOH and graphene were added into MgH2 by high energy ball milling. MgH2 doped with both KOH and graphene has a greatly improved hydrogen storage performance. The existence of graphene and the in-situ formed KMgH3 and MgO decreased activation energy of MgH2 to 109.89 ± 6.03 kJ/mol. The both KOH and graphene doped sample has a reversibly capacity of 5.43 wt % H2 and can released H2 as much as 6.36 times and 1.84 times faster than those of undoped sample and only KOH doped sample at 300 °C, respectively. The addition of graphene not only can provide more “H diffusion channels”, but also can disperse the catalyst." @default.
- W3014188493 created "2020-04-10" @default.
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- W3014188493 date "2020-10-01" @default.
- W3014188493 modified "2023-10-09" @default.
- W3014188493 title "Improved hydrogen storage properties of MgH2 by the addition of KOH and graphene" @default.
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- W3014188493 doi "https://doi.org/10.1016/j.ijhydene.2020.03.070" @default.
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