What are uses of mathane?

Answer 1

Landfill methane used for hydrogen fuel

Catalyx Nanotech is the first company to use methane for nanofiber production. Through a demonstration project at a California landfill, the company was able to split methane into pure hydrogen and carbon to produce nanofibers. Carbon-based nanofibers can be applied to a number of uses: medical, energy, protection, textile; in this case, they'll be used for hydrogren fuel supply. The company says that by making hydrogen at a local landfill they will avoid a hugely expensive and energy inefficient process of fabricating and transporting the hydrogen.

(via Clean Technia)