CTAB-assisted synthesis of mesoporous CoFe2O4 with high carbon monoxide oxidation activity
| Autor: | Hari Bala, Yan Wang, Guang Sun, Xiaodong Wang, Zhao-Li Yan, Zhanying Zhang, Jianliang Cao |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Mechanical Engineering Spinel Nanoparticle Sorption Monoxide Nanotechnology engineering.material Condensed Matter Physics Catalysis Nanomaterials chemistry.chemical_compound chemistry Mechanics of Materials Bromide engineering General Materials Science Mesoporous material Nuclear chemistry |
| Zdroj: | Materials Letters. 106:322-325 |
| ISSN: | 0167-577X |
| Popis: | Mesoporous CoFe 2 O 4 nanomaterials were successfully synthesized via the cetyltrimethylammonium bromide (CTAB)-assisted method at normal pressure. The structure and morphology of the as-prepared CoFe 2 O 4 samples were characterized by XRD, TG-DTA, FT-IR, TEM and N 2 -sorption analysis. XRD studies indicated that the as-prepared product was well-crystallized spinel cobalt ferrite. The TEM image showed that the obtained CoFe 2 O 4 sample consisted of nanoparticles with the size about 15 nm. N 2 -sorption analysis indicated that the mesoporous CoFe 2 O 4 possesses a wormhole-like mesoporous structure with a narrow pore size distribution and high surface area (94.3 m 2 /g). The catalytic property of the as-prepared CoFe 2 O 4 for low-temperature CO oxidation was evaluated by using a microreactor-GC system, and the result shows that it is very active for CO total oxidation at 140 °C. |
| Databáze: | OpenAIRE |
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