能源化学(英文版) ›› 2019, Vol. 39 ›› Issue (12): 170-175.

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The role of interstitial species upon the ammonia synthesis activity of ternary Fe-Mo-C(N) and Ni-Mo-C(N) phases

Angela Daisley, Justin S. J. Hargreaves   

  1. WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ, UK
  • 收稿日期:2018-10-31 修回日期:2018-12-03 出版日期:2019-12-15 发布日期:2020-12-18
  • 通讯作者: Justin S. J. Hargreaves, Justin.Hargreaves@glasgow.ac.uk
  • 基金资助:
    We wish to acknowledge the EPSRC for support EP/L02537X/1. We are also very grateful to Mr Gangi Reddy Ubbara for very kindly conducting CHN analyses. AD wishes to acknowledge the University of Glasgow for the award of an EPSRC DTA studentship.

The role of interstitial species upon the ammonia synthesis activity of ternary Fe-Mo-C(N) and Ni-Mo-C(N) phases

Angela Daisley, Justin S. J. Hargreaves   

  1. WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ, UK
  • Received:2018-10-31 Revised:2018-12-03 Online:2019-12-15 Published:2020-12-18
  • Contact: Justin S. J. Hargreaves, Justin.Hargreaves@glasgow.ac.uk
  • Supported by:
    We wish to acknowledge the EPSRC for support EP/L02537X/1. We are also very grateful to Mr Gangi Reddy Ubbara for very kindly conducting CHN analyses. AD wishes to acknowledge the University of Glasgow for the award of an EPSRC DTA studentship.

摘要: Fe3Mo3C has been prepared and its activity for ammonia synthesis was evaluated. As had been observed previously for Co3Mo3C, it was found to be inactive at 400℃. At 500℃ activity developed and this can be related to the substitution of lattice carbon by nitrogen. Application of a simple topotactic route to prepare Ni2Mo3C from Ni2Mo3N proved unsuccessful, with the resultant carbonitride formed under optimal synthesis conditions being active for ammonia synthesis at 400℃.

关键词: Nitride, Carbide, Carbonitride, Ammonia, Nickel, Iron, Molybdenum

Abstract: Fe3Mo3C has been prepared and its activity for ammonia synthesis was evaluated. As had been observed previously for Co3Mo3C, it was found to be inactive at 400℃. At 500℃ activity developed and this can be related to the substitution of lattice carbon by nitrogen. Application of a simple topotactic route to prepare Ni2Mo3C from Ni2Mo3N proved unsuccessful, with the resultant carbonitride formed under optimal synthesis conditions being active for ammonia synthesis at 400℃.

Key words: Nitride, Carbide, Carbonitride, Ammonia, Nickel, Iron, Molybdenum