Microwave-assisted synthesis and catalytic activity of nano-sized molybdenum carbide in naphthalene hydrogenation
Nanosized molybdenum carbide (β-Mo2C) synthesized by microwave irradiation method was applied for catalytic hydrogenation of naphthalene. Varying the synthesis conditions affects not only the phase composition and physicochemical properties of the resulting carbide but also makes it possible to regu...
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Elsevier
2025-02-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844025008114 |
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| author | Artur Aghoyan Argam V. Akopyan Gurgen Aleksanyan Davit Davtyan |
| author_facet | Artur Aghoyan Argam V. Akopyan Gurgen Aleksanyan Davit Davtyan |
| author_sort | Artur Aghoyan |
| collection | DOAJ |
| description | Nanosized molybdenum carbide (β-Mo2C) synthesized by microwave irradiation method was applied for catalytic hydrogenation of naphthalene. Varying the synthesis conditions affects not only the phase composition and physicochemical properties of the resulting carbide but also makes it possible to regulate the selectivity for hydrogenation products. Samples synthesized in a short time (1–4 min) contain more acid sites due to the presence of molybdenum oxide and allow deeper hydrogenation of naphthalene to decalin compared to a pure-phase molybdenum carbide sample. The catalysts were characterized by XRD, nitrogen adsorption-desorption, SEM, TEM, XPS, and NH3-TPD. The key factors influencing the naphthalene hydrogenation were investigated. Under optimal conditions 100 % naphthalene conversion was obtained: 4 MPa hydrogen pressure, 1 h, 350 °C, catalyst Mo2C-4min-mono. The catalyst retains its activity for at least 5 cycles of hydrogenation. |
| format | Article |
| id | doaj-art-58fe5275185a4dae9a0e5527de574435 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-58fe5275185a4dae9a0e5527de5744352025-02-06T05:12:37ZengElsevierHeliyon2405-84402025-02-01113e42431Microwave-assisted synthesis and catalytic activity of nano-sized molybdenum carbide in naphthalene hydrogenationArtur Aghoyan0Argam V. Akopyan1Gurgen Aleksanyan2Davit Davtyan3Institute of Chemical Physics, National Academy of Sciences of Armenia, Yerevan, 0014, ArmeniaChemistry Department, Lomonosov Moscow State University, Leninskie gory, 1/3, Moscow, Russia, 119234Institute of Chemical Physics, National Academy of Sciences of Armenia, Yerevan, 0014, ArmeniaInstitute of Chemical Physics, National Academy of Sciences of Armenia, Yerevan, 0014, Armenia; Corresponding author.Nanosized molybdenum carbide (β-Mo2C) synthesized by microwave irradiation method was applied for catalytic hydrogenation of naphthalene. Varying the synthesis conditions affects not only the phase composition and physicochemical properties of the resulting carbide but also makes it possible to regulate the selectivity for hydrogenation products. Samples synthesized in a short time (1–4 min) contain more acid sites due to the presence of molybdenum oxide and allow deeper hydrogenation of naphthalene to decalin compared to a pure-phase molybdenum carbide sample. The catalysts were characterized by XRD, nitrogen adsorption-desorption, SEM, TEM, XPS, and NH3-TPD. The key factors influencing the naphthalene hydrogenation were investigated. Under optimal conditions 100 % naphthalene conversion was obtained: 4 MPa hydrogen pressure, 1 h, 350 °C, catalyst Mo2C-4min-mono. The catalyst retains its activity for at least 5 cycles of hydrogenation.http://www.sciencedirect.com/science/article/pii/S2405844025008114HydrogenationMicrowave-assisted synthesisMolybdenum carbideNaphthalene |
| spellingShingle | Artur Aghoyan Argam V. Akopyan Gurgen Aleksanyan Davit Davtyan Microwave-assisted synthesis and catalytic activity of nano-sized molybdenum carbide in naphthalene hydrogenation Heliyon Hydrogenation Microwave-assisted synthesis Molybdenum carbide Naphthalene |
| title | Microwave-assisted synthesis and catalytic activity of nano-sized molybdenum carbide in naphthalene hydrogenation |
| title_full | Microwave-assisted synthesis and catalytic activity of nano-sized molybdenum carbide in naphthalene hydrogenation |
| title_fullStr | Microwave-assisted synthesis and catalytic activity of nano-sized molybdenum carbide in naphthalene hydrogenation |
| title_full_unstemmed | Microwave-assisted synthesis and catalytic activity of nano-sized molybdenum carbide in naphthalene hydrogenation |
| title_short | Microwave-assisted synthesis and catalytic activity of nano-sized molybdenum carbide in naphthalene hydrogenation |
| title_sort | microwave assisted synthesis and catalytic activity of nano sized molybdenum carbide in naphthalene hydrogenation |
| topic | Hydrogenation Microwave-assisted synthesis Molybdenum carbide Naphthalene |
| url | http://www.sciencedirect.com/science/article/pii/S2405844025008114 |
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