Superconductivity in compressed hydrogen-rich materials: Pressing on hydrogen

High-temperature superconductivity in atomic metallic hydrogen

Superconductivity in the recently proposed ground-state structures of atomic metallic hydrogen is calculated over the pressure range 500 GPa to 3.5 TPa. Near molecular dissociation, the electron-phonon coupling λ and renormalized Coulomb repulsion are similar to the molecular phase. A nearly continuous increase in the critical temperature Tc with pressure is thus predicted in this range, to ∼35...

A Critical Review of Mg-Based Hydrogen Storage Materials Processed by Equal Channel Angular Pressing

As a kind of cost-efficient hydrogen storage materials with high hydrogen capacity and light weight, Mg-based alloys have attracted much attention. This review introduces an effective technique in producing bulk ultrafine-grained (UFG) Mg alloys and promoting its hydrogen storage property, namely, equal-channel angular pressing (ECAP). This paper briefly describes the technical principle of ECA...

Copper Catalysts Supported on CeMnO2 for CO Oxidation in Hydrogen-Rich Gas Streams

e"> The CeMnO2 supports were prepared via co-precipitation method by ammonia as <span style="font-size: 9p...

Hydrogen Storage by Physisorption on Porous Materials

Storage of hydrogen in nanostructured carbon materials

Recent developments focusing on novel hydrogen storage media have helped to benchmark nanostructured carbon materials as one of the ongoing strategic research areas in science and technology. In particular, certain microporous carbon powders, carbon nanomaterials, and specifically carbon nanotubes stand to deliver unparalleled performance as the next generation of base materials for storing hyd...