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Dry reforming of methane to hydrogen-rich syngas over robust fibrous KCC-1 stabilized nickel catalyst with high activity and coke resistance

Abdulrasheed, A. A. and Jalil, A. A. and Hamid, M. Y. S. and Siang, T. J. and Fatah, N. A. A. and Izan, S. M. and Hassan, N. S. (2020) Dry reforming of methane to hydrogen-rich syngas over robust fibrous KCC-1 stabilized nickel catalyst with high activity and coke resistance. International Journal of Hydrogen Energy, 45 (36). pp. 18549-18561. ISSN 0360-3199

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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2019.04.126

Abstract

A remarkably stable and active nickel (Ni) catalyst, supported on fibrous KCC-1 silica particles, was prepared by in situ one-pot hydrothermal method to produce a hydrogen-rich syngas. The catalysts’ properties were characterized by BET, XRD, FESEM-mapping, FTIR-pyrrole, FTIR-KBr, and XPS, while coke deposition was evaluated using Raman spectra, TEM and TGA/DTA. The high dispersion of Ni crystallites, enhanced basicity, strong Ni-KCC-1 interaction, and encapsulation of Ni particles contributed to the enhanced catalyst stability and activity. The one-pot catalyst produced high CH4 and CO2 conversions at 92% and 88% respectively, with high H2/CO ratio, and an extended stability over 72 h at 750 °C. There was limited coke deposition, predominantly of the amorphous type, owing to its synthesis method and support morphology.

Item Type:Article
Uncontrolled Keywords:Nickel, Fibrous silica
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:93508
Deposited By: Widya Wahid
Deposited On:30 Nov 2021 08:28
Last Modified:30 Nov 2021 08:28

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