Small Changes to Catalysts; Big Impacts for our Nation [electronic resource].
Published:
Washington, D.C. : United States. Dept. of Energy, 2013. Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Hydrogen is at the heart of producing ammonia. It's what we need to make the fertilizers that grow our food, and to refine crude oil into fuels that meet clean air standards. But it is produced from non-renewable resources, typically natural gas.