高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (5): 456.

• 研究简报 • 上一篇    下一篇

铁催化剂上化学吸附N2的络合活化与加氢成氨

廖代伟   

  1. 厦门大学化学系物理化学研究所
  • 收稿日期:1983-08-02 出版日期:1985-05-24 发布日期:1985-05-24
  • 基金资助:

    国家科学基金

Coordination Activation and Hydrogenation of Chemisorbed N2 on Iron Catalysts for Ammonia Synthesis

Liao Daiwei   

  1. Department of Chemistry and Institute of Physical Chemistry, Xiamen University, Xiamen
  • Received:1983-08-02 Online:1985-05-24 Published:1985-05-24

摘要: 关于Fe上N2的络合活化,业已提出若干原子簇模型。基于所得到的现场动态互补红外与拉曼光谱的实验结果,进行了EHMO计算,以便从理论上比较化学吸附N2的各种络合活化模式,并探测其加氢成氨的可能方式。取α-Fe(111)面Fe7原子簇及其络合活化的N2为计算模型体系。模型-A为双端基加多侧基桥式对称平躺式,模型-B1和B2分别为单端基或准双端基加多侧基斜交式,模型-C为单端基加多侧基直插式。

Abstract: The results of EHMOcalculation indicated that the μ72, ω2, ω2') symmetrical double-end-on plus multiple-side-on flat-lying mode appeared to be more favorable to the coordination activation and hydrogenation of chemisorbed N2 on iron catalysts for ammonia synthesis than other modes, and supported the associative reaction mechanism suggested by professor,K.R. Tsai.

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