The development of nanoporous hydrogen storages презентация

THE DEVELOPMENT OF NANOPOROUS HYDROGEN STORAGES The alternative source for cars - hydrogen Why is hydrogen needed? A modern commercially available car with a range of 400 km burns about 24 kg of petrol in a combustion engine or 8 kg of hydrogen. For the electric car where hydrogen reacts with oxygen in a fuel cell by means the reaction Н2 → 2Н+ + 2e- O2 + 4H+ + 4e- → 2H2O, is needed only 4 kg of hydrogen What is the problem? At the temperature 20oC and pressure 1 bar 4 kg of hydrogen occupied a volume of 45 m3. What`s the way to squeeze 4 kg of hydrogen in a car?

Conventional and nonconventional hydrogen storages.

Our idea To create such a material, which would be able to accumulate hydrogen both in its atomic and molecular states. Complex hydrides (V, Ti, Mg)Ny

Nanocrystalline porous complex hydrides (V, Ti)NxHy

Structural changes in VNx films by absorption and desorption of hydrogen. Scanning and transmission microscopy.

Hydrogen absorption by TiNx, (V, 0,1Ti)Nx films

The diagram of hydrogen absorption by nanoporous structures

Hydrogen desorption by TiN, VN and VN+Ni films

CONCLUSIONS