ISSN:
1572-9028
Keywords:
ammonia synthesis
;
microkinetic modeling
;
reaction kinetics
;
surface science studies
;
coverage dependencies
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract A previously developed microkinetic model of NH3 synthesis is extended to include recent experimental results on the kinetics of N2-dissociation obtained from molecular beam studies and on the NHx-K-repulsion obtained from TPD studies. Further, we show that agreement between the experimental and calculated TPD spectrum for N2 can be made perfect by including a small coverage dependency in the activation energy for N2 -dissociation. Finally we show that there is a close relation between the TPD spectrum for N2 used as input for microkinetic models and the calculated rate of NH3 synthesis calculated from the model.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01492279
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