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The catalytic ammonia decomposition over iron and iron nitride, Fe4N, under the atmosphere of ammonia–hydrogen mixtures of different amounts of ammonia in the temperature range of 400–550 °C by means of thermogravimetry has been studied. A differential tubular reactor with mixing has been used. The ammonia concentration in the gas phase during all the process was analysed. The balance between the...
The oxidation of an Fe(111) surface covered with carbon or nitrogen was studied using the AES method. The rate of oxidation depends on the form of the carbon or nitrogen. The oxidation rate of an iron surface precovered with an atomic non-metal or implanted with a non-metal is similar at the initial stage (θ O <1) to that of a clean iron surface. The oxidation process is inhibited by the...
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