Hydrogen Storage

Introduction

Fossil energy is finite energy, oil, coal and other primary energy is forecast that they will be depleted over the next several decades to hundreds of years, while fossil fuels caused the greenhouse effect, acid rain and other serious ecological disaster for earth. Thus people have to study for the new energy which benefit for our earth, it also the needs of the times. This green energy hydrogen would be put forward, and hydrogen storage materials are also in the study of hydrogen.

Hydrogen storage materials can reversibly absorb and release hydrogen material. The metal palladium was discovered first, 1 volume of palladium can dissolve hundreds of volume hydrogen, but palladium is very expensive, lack of practical value. At ambient temperature and pressure, it can rapidly absorb hydrogen and react into a hydride, is in the form of metal hydrogen to storage. If people need it, users can heating or reduced pressure appropriatly so that the storage of the hydrogen can be released for using.

History

Such studies began in the 1960s. First discovered MgH2, whose capacity of hydrogen storage was up to 7.6%, but the reaction is slow. 1964 developed Mg2Ni become the first use value of hydrogen storage material. In the same year, LaNi5 was found in the rare earth compounds. In 1974, TiFe was discovered, these two is the best performance.

Development

Such studies are constantly carried out.Molybdenum disulfide nanotubes can be made by thermal decomposition of (NH4) 2MoS4 in a mixture of hydrogen and thiophene. This nanotube structure has excellent hydrogen storage properties, due to its high specific surface area and porous structure, it has a broad application prospects in the field of hydrogen storage.