Effect of Concentration and Time Factors on Carbon Nanofiber Supported Iron Catalyst Preparation by Incipient Wetness

Abstract

This paper discusses the influence of residence time and iron concentration factors on the impregnation yield for preparation of the carbon nanofiber supported iron material by incipient wetness impregnation. The samples were characterized by nitrogen physisorption, thermogravimetric analysis and electron spectroscopy techniques. The technique of effective impregnation was studied by atomic adsorption spectrophotometry. The results show that the morphology of the iron was distributed and well supported and the size of iron was in a wide range of 1μm to less than 2nm. The impregnation yield has been achieved 78% for 3 hours of residence time of 3%wt Fe/CNF sample with surface area of 102.292 m2/g.