Development of high-performance nickel-based catalysts for production of hydrogen and carbon nanotubes from biogas
3
Issued Date
2022-12-01
Resource Type
eISSN
20452322
Scopus ID
2-s2.0-85137440018
Pubmed ID
36071147
Journal Title
Scientific Reports
Volume
12
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Scientific Reports Vol.12 No.1 (2022)
Suggested Citation
Saconsint S., Sae-tang N., Srifa A., Koo-Amornpattana W., Assabumrungrat S., Fukuhara C., Ratchahat S. Development of high-performance nickel-based catalysts for production of hydrogen and carbon nanotubes from biogas. Scientific Reports Vol.12 No.1 (2022). doi:10.1038/s41598-022-19638-y Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/86395
Title
Development of high-performance nickel-based catalysts for production of hydrogen and carbon nanotubes from biogas
Author's Affiliation
Other Contributor(s)
Abstract
Selecting a suitable catalyst for implementing the simultaneous production of hydrogen-rich syngas and multi-walled carbon nanotubes through the integration of dry reforming and methane decomposition reactions has recently gained great interests. In this study, a series of bimetallic (NiMo/MgO) and trimetallic (CoNiMo/MgO, FeNiMo/MgO, CoFeMo/MgO) catalysts was prepared and evaluated for a catalytic activity of CH4 and CO2 conversions of biogas in a fixed bed reactor at 800 °C and atmospheric pressure. Among the investigated catalysts, the bimetallic NiMo/MgO catalyst showed the outstanding catalytic performance with 86.4% CH4 conversion and 95.6% CO2 conversion as well as producing the highest syngas purity of 90.0% with H2/CO ratio = 1.1. Moreover, the characterization of the synthesized solid products proved that the well-aligned structured morphology, high purity, and excellent textural properties of CNTs were obtained by using NiMo/MgO catalyst. On the other hand, using trimetallic catalysts which have the composition of Co and Fe leads to the severe deactivation. This could be attributed the catalyst oxidation with CO2 in biogas, resulting in the transformation of metals into large metal oxides. The integrative process with NiMo/MgO catalyst is regarded as a promising pathway, which has a high potential for directly converting biogas into the high value-added products and providing a green approach for managing the enormous amounts of wastes.