Self-Assembled of Mgh2 Nanoparticles at Mgh2 Nanotubes Linking Architecture to Hydrogen Storage

摘要

Hydrogen could be the ultimate energy carrier enabling energy security and global sustainability in this 21st century. Hydrogen is already central to our current energy systems. In the sun, hydrogen releases the energy that sustains life on Earth, while hydrogen bonded to carbon provides us with the so-called fossil fuels that have powered our industrial revolution. Unfortunately, a heavy reliance on finite resources and the adverse effects of fossil fuels on global climate are now threatening further development. In its purest form hydrogen has a high energy content (142 MJ.Kg-1 ), and therefore hydrogen has naturally emerged as the only possible synthetic energy carrier with sufficient versatility to replace oil. However, the effective storage of hydrogen in a compact manner remains the central difficulty for its widespread use. Efforts over the last decades have targeted a range of materials capable of storing hydrogen with high density in the form of a hydride, e.g. MgH2, NaAlH4, H3BNH3 and LiBH4, but the realization of successful strategies to control and balance competitive thermodynamics/kinetics requirements for the effective storage of hydrogen remains unanswered.