1 Jul 2012
Nitrogen burns in oxygen , yielding a net energy gain . But it requires a very high threshold of energy for the reaction to take place . A catalyst is called for .
A catalyst exists (the difficult bit) . It seems to be a Porphyrin .See Appendix I
The catalyst seems to involve a porphyrin (see appendix I) , Iron and Manganese . While this might turn over your engine , I cannot see it converting atmospheric N2 +O2 to a positive feedback cataclysm .
But small-scale engines , using precise injections of catalyst would work (a- la-Diesel) . The exhaust would be a nitric-acid form , which can be easily converted into fertilizer .
It will be nearly free .
Free at last!
See the link below for more details.
Complexes of porphyrins and related molecules
Porphyrins are the conjugate acids of ligands that bind metals to form complexes. The metal ionusually has a charge of 2+ or 3+. A schematic equation for these syntheses is shown:
H2porphyrin + [MLn]2+ → M(porphyrinate)Ln-4 + 4 L + 2 H+ where M=metal ion and L=a ligand
A porphyrin without a metal-ion in its cavity is a free base. Some iron-containing porphyrins are called hemes. Heme-containing proteins, or hemoproteins, are found extensively in nature.Hemoglobin and myoglobin are two O2-binding proteins that contain iron porphyrins. Variouscytochromes are also hemoproteins.
Several other heterocycles are related to porphyrins. These include corrins, chlorins,bacteriochlorophylls, and corphins. Chlorins (2,3-dihydroporphyrin) are more reduced, contain more hydrogen than porphyrins, and feature a pyrroline subunit. This structure occurs in a chlorophyllmolecule. Replacement of two of the four pyrrolic subunits with pyrrolinic subunits results in either abacteriochlorin (as found in some photosynthetic bacteria) or an isobacteriochlorin, depending on the relative positions of the reduced rings. Some porphyrin derivatives follow Hückel's rule, but most do not.