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

作　　者：Angela Daisley Justin S.J.Hargreaves 

机构地区：[1]WestCHEM, School of Chemistry, University of Glasgow

出　　处：《Journal of Energy Chemistry》2019年第12期170-175,共6页能源化学（英文版）

基　　金：the EPSRC for support EP/L02537X/1

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℃.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 °C. At 500 °C 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 °C.

关 键 词：NITRIDE CARBIDE CARBONITRIDE Ammonia Nickel Iron Molybdenum 

分 类 号：O62[理学—有机化学]