| Autor: |
Didi Prasetyo Benu, Veinardi Suendo, Rino Rakhmata Mukti, Erna Febriyanti, Fry Voni Steky, Damar Rastri Adhika, Viny Veronika Tanuwijaya, Ashari Budi Nugraha |
| Jazyk: |
English<br />Indonesian |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Bulletin of Chemical Reaction Engineering & Catalysis, Vol 14, Iss 3, Pp 542-550 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
1978-2993 |
| DOI: |
10.9767/bcrec.14.3.3855.542-550 |
| Popis: |
We demonstrated the synthesis of spherical nanostructured g-Al2O3 using reverse micelle templating to enhance the surface area and reactant accessibility. Three different surfactants were used in this study: benzalkonium chloride (BZK), sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB). We obtained spherical nanostructured particles only using CTAB that form a reverse micelle emulsion. The particles have wide size distribution with an average size of 2.54 mm. The spherical particles consist of nanoplate crystallites with size 20-40 nm randomly arranged forming intercrystallite spaces. The crystalline phase of as-synthesized and calcined particles was boehmite and g-Al2O3, respectively as determined by XRD analysis. Here, the preserved particle morphology during boehmite to g-Al2O3 transformation opens a facile route to synthesize g-Al2O3 particles with complex morphology. The specific surface area of synthesized particles is 201 m2/g, which is around five times higher than the conventional g-Al2O3 (Aldrich 544833). Spherical nanostructured g-Al2O3 provides wide potential applications in catalysis due to its high density closed packed structure, large surface area, and high accessibility. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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