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Catalytic decomposition of 2 methanol in methane over metallic catalyst by fixed-bed catalytic reactor

Awad, A. and Ahmed, I. and Qadir, D. and Khan, M.S. and Idris, A. (2021) Catalytic decomposition of 2 methanol in methane over metallic catalyst by fixed-bed catalytic reactor. Energies, 14 (8).

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

The structure and performance of promoted Ni/Al2O3 with Cu via thermocatalytic decomposition (TCD) of CH4 mixture (2 CH3OH) were studied. Mesoporous Cat-1 and Cat-2 were synthesized by the impregnation method. The corresponding peaks of nickel oxide and copper oxide in the XRD showed the presence of nickel and copper oxides as a mixed alloy in the calcined catalyst. Temperature program reduction (TPR) showed that Cu enhanced the reducibility of the catalyst as the peak of nickel oxide shifted toward a lower temperature due to the interaction strength of the metal particles and support. The impregnation of 10 Cu on Cat-1 drastically improved the catalytic performance and exhibited 68 CH4 conversion, and endured its activity for 6 h compared with Cat-1, which deactivated after 4 h. The investigation of the spent carbon showed that various forms of carbon were obtained as a by-product of TCD, including graphene fiber (GF), carbon nanofiber (CNF), and multi-wall carbon nanofibers (MWCNFs) on the active sites of Cat-2 and Cat-1, following various kinds of growth mechanisms. The presence of the D and G bands in the Raman spectroscopy confirmed the mixture of amorphous and crystalline morphology of the deposited carbon. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Item Type:Article
Impact Factor:cited By 0
Uncontrolled Keywords:Carbon nanofibers; Catalysts; Copper metallography; Impregnation; Mixtures; Nickel metallography; Nickel oxide, Catalytic decomposition; Catalytic performance; Crystalline morphologies; Fixed-bed catalytic reactors; Impregnation methods; Interaction strength; Structure and performance; Thermocatalytic decomposition, Copper oxides
ID Code:23921
Deposited By: Ms Sharifah Fahimah Saiyed Yeop
Deposited On:19 Aug 2021 13:23
Last Modified:19 Aug 2021 13:23

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