First time report on nanoconfined LiBH4–MgH2–NaAlH4.
Alteration of dehydrogenation from multi- to be single step after nanoconfinement.
Reduction of dehydrogenation temperature (ΔT up to 70 °C) after nanoconfinement.
69% and 55% H2 released and reproduced from nanoconfined samples after 4 cycles.