Investigation of carbon nanofiber supported iron catalyst preparation by deposition precipitation

van Thien Duc, N. and Sufian, S. and Mansor, N. and Yahya, N. (2014) Investigation of carbon nanofiber supported iron catalyst preparation by deposition precipitation. Advanced Materials Research, 1043. pp. 71-75.

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An ammonia synthesis using magnetic field to replace Haber-Bosch�s ammonia production is great technological challenge in novel magnetized catalysts area. The carbon nanofiber supported iron catalyst was prepared by modifying carbon nanofiber support surface and later using urea to precipitate iron nitrate by deposition precipitation. It was found that the particle size was in a range of 5-50nm and well dispersion of iron was shown by transmission electron microscopy. This was strongly influenced by alteration of carbon nanofiber surface from hydrophobic to hydrophilic and with high adsorption sites as oxygen functional groups and defects. The lower iron loading between 5 and 40wt, the lower iron accumulation and the narrower the particle size distribution of 10-20nm. The result suggests that the iron particles are in a good size range for iron catalyst activity for ammonia synthesis as reported by Morawski and Figurski authors. © (2014) Trans Tech Publications, Switzerland.

Item Type: Article
Impact Factor: cited By 1
Uncontrolled Keywords: Ammonia; Carbon; Carbon nanofibers; Catalyst activity; Catalysts; Deposition; Dispersions; Functional groups; Iron; Kinetic theory; Nanofibers; Particle size; Particle size analysis; Purification; Surface defects; Transmission electron microscopy; Urea, Ammonia production; Ammonia synthesis; Catalyst preparation; Deposition precipitation; Iron accumulation; Oxygen functional groups; Support surfaces; Technological challenges, Catalyst supports
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 29 Mar 2022 03:30
Last Modified: 29 Mar 2022 03:30

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