Hydrogen Storage Technologies

Chapter 8Beneficial Effects of Graphene on Hydrogen Uptake and Release from Light Hydrogen Storage Materials

Rohit R Shahi

Department of Physics, Motilal Nehru National Institute of Technology Allahabad, Allahabad, Uttar Pradesh, India

Corresponding author: [e-mail], [e-mail]

Abstract

In recent years, the development of hydrogen storage (HS) materials with favorable kinetics and desorption/absorption temperature has attracted considerable attention. The scope of HS materials has been transformed from tradition metal hydrides to lightweight hydrogen storage materials such as alanates, amide-hydride mixtures and magnesium hydride. However, each has its own limitations which is related to their high desorption temperature and slow kinetics. Thus, these materials cannot be used as onboard material for practical application in hydrogen-fueled devices or vehicles. Carbon has many allotropes with novel properties which are useful in many new innovative applications. Different well-known allotropes of carbon are graphite, activated carbon, fullerenes, carbon nanotubes, and the most recent, graphene. Recent studies have demonstrated the beneficial effect of carbon nanomaterial materials (CNFs and CNTs) as catalyst for enhancing hydrogenation/dehydrogenation behavior of different light HS materials. Among different carbon nanomaterials, graphene can also be used as a beneficial additive for different HS materials because it has light weight and high surface ...