The safe and efficient storage of hydrogen is still one of the remaining challenges towards fuel cell powered cars. Metal hydrides are a promising class of materials as they allow the storage of large amounts of hydrogen in a small volume at room temperature and low pressures. However, usually the kinetics of hydrogen release and uptake and the thermodynamic properties do not satisfy the requir...

We study the hydrogen storage properties o f p lanar boron sheets and com pare them to those o f graphene. T he b inding o f m olecular hydrogen to the boron sheet (0.05 eV ) is stronger than that to graphene. W e find that d ispersion o f alkali m etal (A M = Li, Na, and K) atom s onto the boron sheet m arkedly increases hydrogen binding energies and storage capacities. The unique structure o ...

in this study, we have investigated radius dependence of hydrogen storage within armchair (n,n) single walled carbon nanotubes (swcnt) in a square arrays. to this aim, we have employed equilibrium molecular dynamics (md) simulation. our simulations results reveal that radius of carbon nanotubes are an important and influent factor in hydrogen distribution inside carbon nanotubes and consequentl...

Single-walled carbon nanotube (SWCNT) fibers were engineered to become a scaffold for the storage of hydrogen. Carbon nanotube fibers were swollen in oleum (fuming sulfuric acid), and organic spacer groups were covalently linked between the nanotubes using diazonium functionalization chemistry to provide 3-dimensional (3-D) frameworks for the adsorption of hydrogen molecules. These 3-D nanoengi...

A Band N-doped microporous carbon has been synthesized via a substitution reaction. The obtained carbon exhibited much higher surface area than the previously reported Band N-doped carbon. The hydrogen storage measurements indicated that the Band N-doped microporous carbon had a 53% higher storage capacity than the carbon materials with similar surface areas. Furthermore, hydrogen storage via s...

Metal-organic frameworks (MOFs) are potentially useful materials for hydrogen and methane storage. However, the weak interactions between the MOF host and gas guest molecules have limited their storage capacities at elevated temperatures. In this issue, Alkordi et al. [IUCrJ (2017), 4, 131-135] illustrate an example of a porous MOF with a suitable pore size and unique pore surface for enhanced ...

We have designed and installed a unique GLAD system with two e-beam sources for the fabrication of nanostructured hydrogen storage materials (such as Mg, MgNi alloy, catalyst coated/doped Mg and its alloy, multilayered metal nanostructures). Due to the reactive nature of the metals/metal alloys for hydrogen storage, the system integrates the vacuum chamber with a glove box. This unique system s...

Hydrogen storage is still one of the most significant issues hindering the development of a "hydrogen energy economy". Ammonia borane is notable for its high hydrogen densities. For the material, one of the main challenges is to release efficiently the maximum amount of the stored hydrogen. Hydrolysis reaction is a promising process by which hydrogen can be easily generated from this compound. ...