Beyond Haber-Bosch: Non-Equilibrium Photocatalysis

A recent report in which the thermodynamic equilibrium limit of the Haber-Bosch synthesis of ammonia was, for the first time, surmounted by the action of light, and could change the prevailing view of what is possible and not possible in the field of catalysis. A hetero-nanostructured photocatalyst, Fe-TiO2-xHy, which contains both a high and low-temperature site in a single structure has been demonstrated to overcome the thermodynamic equilibrium limit of the ammonia synthesis. This is possible because the exothermic ammonia synthesis process is thermodynamically favored though kinetically sluggish at low temperature; however, the exact opposite prevails at high temperature.
See full article at Advanced Science News.

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