Production of hydrogen and carbon nanomaterials using transition metal catalysts through methane decomposition

[Display omitted] •Clean hydrogen gas production by the catalytic decomposition of methane.•Highly selective monometallic catalysts for methane decomposition.•Facile incorporation of plentiful elements on the Santa Barbara Amorphous-15.•Nickel oxide over Santa Barbara Amorphous-15 converted 40% of m...

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Bibliographic Details
Published in:Materials letters 2018-04, Vol.217, p.9-12
Main Authors: Urdiana, G., Valdez, R., Lastra, G., Valenzuela, M.Á., Olivas, A.
Format: Article
Language:English
Subjects:
Carbon
Carbon fibers
Carbon nanotubes
Catalysis
Catalysts
Catalytic activity
Chemical synthesis
Conversion
Copper
Decomposition
Dispersion
Hydrogen
Hydrogen production
Manganese
Materials science
Mesoporous materials
Methane
Methane decomposition
Nanofibers
Nanomaterials
Nanotubes
Nickel
SBA-15
Zinc
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Summary:[Display omitted] •Clean hydrogen gas production by the catalytic decomposition of methane.•Highly selective monometallic catalysts for methane decomposition.•Facile incorporation of plentiful elements on the Santa Barbara Amorphous-15.•Nickel oxide over Santa Barbara Amorphous-15 converted 40% of methane at 700 °C. In this work, we synthesized monometallic catalysts based on Ni, Cu, Co, Mn, Fe, Zn, and W supported on Mesoporous Santa Barbara Amorphous-15 (SBA-15) to produce hydrogen and carbon nanomaterials through catalytic methane decomposition (CMD). Highly dispersed metal oxides supported on the SBA-15 surface promotes the formation of either carbon nanotubes or carbon nanofibers after CMD. Furthermore, the catalytic activity results showed the Ni/SBA-15 catalyst performed the highest methane conversion (40%) as well as it displayed superior stability during 13 h at 500 °C (23% of conversion). The resulting nanoparticle oxides, except for the Zn sample that presented a high dispersion throughout the SBA-15.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2018.01.033