TY  - JOUR
AV  - none
IS  - 8
N2  - 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.
N1  - cited By 0
KW  - Carbon nanofibers; Catalysts; Copper metallography; Impregnation; Mixtures; Nickel metallography; Nickel oxide
KW  -  Catalytic decomposition; Catalytic performance; Crystalline morphologies; Fixed-bed catalytic reactors; Impregnation methods; Interaction strength; Structure and performance; Thermocatalytic decomposition
KW  -  Copper oxides
TI  - Catalytic decomposition of 2 methanol in methane over metallic catalyst by fixed-bed catalytic reactor
ID  - scholars15028
Y1  - 2021///
SN  - 19961073
PB  - MDPI AG
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106232778&doi=10.3390%2fen14082220&partnerID=40&md5=6bd0f066ae3284406cf4e210558af227
JF  - Energies
A1  - Awad, A.
A1  - Ahmed, I.
A1  - Qadir, D.
A1  - Khan, M.S.
A1  - Idris, A.
VL  - 14
ER  -