We must go beyond hydrogen, if we want safe and transportable fuels.
Although energy-dense, it is hard to compress, to store, and to transport H2. We develop post-hydrogen alternative fuels, especially those based on nitrogen. Such fuels include ammonia (NH3), hydrazine (N2H4) and urea. They are more easily liquefied and transported than hydrogen, and offer high energy density and/or high abundance. We develop new electrocatalysts for oxidizing these fuels under fuel cell conditions; that is, extracting their energy and electrons efficiently, and selecting for the cleanest products, water and N2. Such catalysts are based on multi-doped carbon-carbide composites, on doped hydroxides, and other fascinating nano-structured materials.