Ammonia decomposition on a platinum nanocoating at various electric potentials

Abstract

It was shown that the rate of ammonia decomposition on a platinum nanocoating can be controlled by applying an external electrostatic field to the coating to create a negative or positive platinum potential of variable magnitude. In experiments conducted with a contact time of 15 min between platinum and ammonia at a temperature of 700 K and a pressure of 5 × 10^–7 Torr, the decomposition rate increased by 44% at a negative potential of the coating of–6 V and by 70% at a positive potential of +6 V.