Effects of Cobalt Loading, Particle Size, and Calcination Condition on Co/CNT Catalyst Performance in Fischer–Tropsch Reactions

Akbarzadeh, Omid and Mohd Zabidi, Noor Asmawati and Wahab, Yasmin Abdul and Hamizi, Nor Aliya and Chowdhury, Zaira Zaman and Aljunid Merican, Zulkifli Merican and Rahman, Marlinda Ab and Akhter, Shamima and Shalauddin, Md and Johan, Mohd Rafie (2018) Effects of Cobalt Loading, Particle Size, and Calcination Condition on Co/CNT Catalyst Performance in Fischer–Tropsch Reactions. Symmetry, 11 (1). p. 7. ISSN 2073-8994, DOI https://doi.org/10.3390/sym11010007.

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Official URL: https://doi.org/10.3390/sym11010007


The strong electrostatic adsorption (SEA) method was applied to the synthesis of a cobalt (Co) catalyst on a multi-walled carbon nanotube (CNT) support. In order to uptake more of the cobalt cluster with higher dispersion, the CNT was functionalized via acid and thermal treatment. The Co/CNT catalyst samples were characterized by a range of methods including the Brunauer-Emmet-Teller (BET) surface area analyzer, transmission electron microscopy (TEM), X-ray powder diffraction (XRD) analysis, atomic absorption spectroscopy (AAS), and H2-temperature programmed reduction (H2-TPR) analysis. The data from the TEM images revealed that the catalyst was highly dispersed over the external and internal walls of the CNT and that it demonstrated a narrow particle size of 6-8 nm. In addition, the data from the H2-TPR studies showed a lower reduction temperature (420 °C) for the pre-treated catalyst samples. Furthermore, a Fischer-Tropsch synthesis (FTS) reaction was chosen to evaluate the Co/CNT catalyst performance by using a fixed-bed microreactor at different parameters. Finally finding the optimum value of the cobalt loading percentage, particle size, and calcination conditions of Co/CNT catalyst resulted in a CO conversion and C5+ selectivity of 58.7% and 83.2%, respectively. © 2018 by the authors.

Item Type: Article
Funders: Universiti Teknologi PETRONAS, University of Malaya, Nanotechnology and Catalysis Research Centre (RU011-2017 Grant), Ministry of Education of Malaysia under the Fundamental Research Grant Scheme FRGS/1/2012/SG01/UTP/02/01
Uncontrolled Keywords: carbon nanotubes; Fischer–Tropsch; thermal treatment; cobalt; catalyst; acid treatment
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 27 May 2020 02:32
Last Modified: 27 May 2020 02:32
URI: http://eprints.um.edu.my/id/eprint/24375

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