Development and Demonstration of Air Stable rGO‐EC@AB₅ Type Hydrogenated Intermetallic Hybrid for Hydrogen Fuelled Devices

Abstract Hydrogen is a promising alternative energy vector, but its use at an appropriate site requires storage, which is a crucial aspect. Hydrogen storage (HS) in the form of metal hydrides represents an attractive possibility, and is being investigated worldwide. La(Ni_0.95Fe_0.05)₅ (LNF) has achieved significant attention as a HS media due to its suitable thermodynamics. However, its use as an effective storage material is hindered due to burning of hydrogenated LNF (LNFH) on exposure to air. The pristine LNFH catches fire rapidly on exposure to atmosphere. Here, a breakthrough strategy is demonstrated for design of hydrogenated air‐stabilized hybrid material by encapsulating LNF inside reduced graphene oxide‐ethyl cellulose. This novel hybrid material does not ignite upon exposure to air. This proposed hybrid material could be the ultimate choice for air‐stable and safe storage for fuel cell/internal combustion engine‐based vehicles. Further, the effectiveness of this hydrogen storage material is demonstrated for fuel cells.