The Action of Molecular Nitrogen on highly purified Iron

Gray, Harry; Thompson, Maethonia

doi:10.1021/j150333a010

Cited by 7 publications

(1 citation statement)

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“…Firstly, the nitrogen in metal nitrides is typically more reactive than that in ammonia, facilitating C-N bond formation. [5] Secondly, a range of metals, including Li, [6] Mg, [7] Ti, [8] Cr, [9] Mn, [10] and Fe [11] have been shown to react with N2 to form metal nitrides. [7,12] If a viable route from metal nitrides to organonitrogen compounds such as amines is established, it could open a new pathway from N2 to nitrogen-containing chemicals, bypassing the Haber-Bosch process.…”

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Constructing Amine Functionality from N2 via an Iron Nitride-Mediated Chemical Looping Pathway

Li,

Wang,

Wang

et al. 2024

Preprint

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Amines are commonly synthesized through the amination of organooxygenates using ammonia, frequently involving the use of noble metal catalysts. In this study, we first present an alternative route to make amines using iron nitride (Fe2.5N) as the nitrogen source. Without any additional catalyst, Fe2.5N reacts with a range of alcohols at 250 °C under 1 or 10 bar H2 to produce amines as major products. Mechanistic investigations indicate that hydrogen activates the nitrogen species within iron nitride, converting them into surface NH and NH2 groups that then react with alcohols to form amines. Building on this foundation, we further demonstrated an iron nitride-mediated chemical looping pathway that utilizes N2 as the nitrogen source to synthesize octylamines. In this process, N2 first reacts with iron to form FexN, which subsequently reacts with alcohols to yield amines, transferring over 80% of the nitrogen to organic compounds. This looping process remained stable across four cycles.

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mentioning

confidence: 99%

Constructing Amine Functionality from N2 via an Iron Nitride-Mediated Chemical Looping Pathway

Li,

Wang,

Wang

et al. 2024

Preprint

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Zum heutigen Stand der Theorie der Ammoniak‐Katalyse. Mitteilung aus dem Forschungslaboratorium Oppau der I. G. Farbenindustrie A. G. Ludwigshafen (Rh.)

Frankenburget¹

1933

Zeitschrift für Elektrochemie und angewandte physikalische Chem

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The attack of metals by free radicals and atoms

Thompson

Ubbelohde

1953

J. Appl. Chem.

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Numerous but scattered reactions are known where the surfaces of metal containers are attacked during the chemical changes in contiguous gases or liquids. In many cases the basic physico‐chemical interpretation of such attack is incomplete. In the present paper a number of examples are discussed in terms of thermodynamics and kinetics. A consideration of the kinetics may involve atoms or free radicals, and a transient concentration of these may be established which greatly exceeds the equilibrium concentration. This can favour internal reduction of metal carbides, nitrides, sulphides and oxides and can lead to extremely high disruption‐pressures at internal voids in the metal. Other cases of enhanced attack on metal surfaces due to transient concentrations of atoms and free radicals are also discussed.

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The Action of Molecular Nitrogen on highly purified Iron

Cited by 7 publications

References 0 publications

Constructing Amine Functionality from N2 via an Iron Nitride-Mediated Chemical Looping Pathway

Constructing Amine Functionality from N2 via an Iron Nitride-Mediated Chemical Looping Pathway

Zum heutigen Stand der Theorie der Ammoniak‐Katalyse. Mitteilung aus dem Forschungslaboratorium Oppau der I. G. Farbenindustrie A. G. Ludwigshafen (Rh.)

The attack of metals by free radicals and atoms

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