Simultaneous production of hydrogen and carbon nanotubes from cracking of a waste cooking oil model compound over Ni‐Co / SBA ‐15 catalysts

2020 ◽  
Vol 44 (14) ◽  
pp. 11564-11582 ◽  
Author(s):  
Wei Liu ◽  
Hong Yuan
Keyword(s):  
Carbon Nanotubes ◽  
Model Compound ◽  
Waste Cooking Oil ◽  
Simultaneous Production ◽  
Cooking Oil ◽  
Production Of Hydrogen

Simultaneous production of hydrogen and carbon nanotubes from biogas: On the effect of Ce addition to CoMo/MgO catalyst

2021 ◽  
Author(s):  
Thunyathon Kludpantanapan ◽  
Paveenuch Nantapong ◽  
Raminda Rattanaamonkulchai ◽  
Atthapon Srifa ◽  
Wanida Koo-Amornpattana ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Simultaneous Production ◽  
Production Of Hydrogen

Ni/ZrO2-CeO2 Catalysts for the Simultaneous Production of Hydrogen and Carbon Nanotubes

2011 ◽  
Vol 14 (2) ◽  
pp. 127-131
Author(s):  
M. L. Hernandez-Pichardo ◽  
M. A. Valenzuela ◽  
S. P. Paredes ◽  
P. Del Angel ◽  
J. A. Montoya De la Fuente
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Transmission Electron Microscopy ◽  
Ultrasound Treatment ◽  
Synthesis Methods ◽  
X Ray Diffraction ◽  
X Ray ◽  
Simultaneous Production ◽  
Transmission Electron ◽  
Production Of Hydrogen

The catalytic methane decomposition (CMD) using Ni/ZrO2-CeO2 catalysts for the simultaneous production of hydrogen and carbon nanotubes, was studied on samples prepared by different synthesis methods. The catalysts were synthesized by the impregnation and coprecipitation methods with or without ultrasound treatment. X-ray diffraction (XRD), Raman spectroscopy and high resolution transmission electron microscopy (HRTEM) were the main characterization techniques. It was observed that the Ni impregnated catalyst with ultrasound treatment increases significantly the production of hydrogen and carbon nanotubes in the CDM at 500 °C. The results also indicated that the synthesis of catalysts via coprecipitation generates a higher number of encapsulated Ni particles by both, the ZrO2-CeO2 support and the produced carbon at the end of the reaction.

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