Vapour grown carbon fibres constitutes a promising material for hydrogen storage for transport applications. The reasons are its low cost, simple manufacturing process and structure, which presents several advantages over other carbon based materials. These fibres have a core made of polycrystalline coronene and a coat of graphite scales, and therefore it presents several possible binding sites for molecular hydrogen. We have grown fibres following different methods with the aim of increasing the amount of hydrogen that can be stored and released at room temperature. Besides the intrinsic theoretical interest, we aim to increase our knowledge of the hydrogen dynamics in these systems using the unique information that only coupled QENS and ND can provide, to optimize the structure and hence the growing method of the fibres.