Production of carbon nanotubes and hydrogen by catalytic ethanol decomposition
This work reports the synthesis of multiwall carbon nanotubes (MWCNTs) by the catalytic decomposition of ethanol using the perovskite-type oxide LaNiO3 as catalyst precursor. The carbon nanotubes were characterized by transmission electronic microscopy (TEM), scanning electronic microscopy (SEM) and...
- Autores:
-
Gallego, Jaime
Sierra Gallego, Germán
Daza, Carlos
Molina, Rafael
Barrault, Joël
Batiot Dupeyat, Catherine
Mondragón, Fanor
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2013
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/39880
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/39880
http://bdigital.unal.edu.co/29977/
- Palabra clave:
- Carbon nanotubes
perovskites
nickel
hydrogen
ethanol decomposition
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | This work reports the synthesis of multiwall carbon nanotubes (MWCNTs) by the catalytic decomposition of ethanol using the perovskite-type oxide LaNiO3 as catalyst precursor. The carbon nanotubes were characterized by transmission electronic microscopy (TEM), scanning electronic microscopy (SEM) and thermogravimetric analysis (TGA). TEM micrographs show that the carbon nanotubes were multi-walled with inner diameters ranging from 3 nm to 12 nm and outer diameters up to 42 nm. The yield of CNT and H2 were 3.5 gCNT?(gcat?h)-1 and 39 LH2?(g?h)-1 respectively at 700 °C. TGA data show that nanotube carbon purity was about 95 % by weight and the oxidation temperature was around 620 °C. |
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