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Chemical and Structural Characterization of Amorphous and Crystalline Alumina Obtained by Alternative Sol–Gel Preparation Routes
| Content Provider | MDPI |
|---|---|
| Author | Piotr, Jeleń Mateusz, Korpyś Rutkowska, Izabela Marchewka, Jakub Odziomek, Mateusz Paczkowska, Joanna Sitarz, Maciej |
| Copyright Year | 2021 |
| Description | Aluminum oxide is one of the most commonly used materials in the industry. It is used in the field of catalysis, refractories, and optics. Despite the fact that there are many techniques available, there is still a great challenge in obtaining a material with desired and designed properties. Nevertheless, there is a great flexibility in making customized alumina materials with desired physicochemical properties synthesized by sol–gel methods. This work consists in characterizing the physicochemical properties of sol–gel synthesized aluminum oxide using different sol–gel preparation routes. Three different sols were obtained by using organic precursors and underwent thermal treatment. The structure (Middle Infrared Spectroscopy, Diffused Reflectance Infrared Spectroscopy, X-ray Diffraction, Magic Angle Spinning Nuclear Magnetic Resonance) and microstructure (Scanning Electron Microscopy with Electron Dispersive Spectroscopy) tests of the materials were carried out. The specific surface area was determined by using the Brunauer–Emmett–Teller (BET) method. Thermal analysis was performed for all the powders, in order to analyze the specific temperature of materials transformation. |
| Starting Page | 1761 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma14071761 |
| Journal | Materials |
| Issue Number | 7 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-04-02 |
| Access Restriction | Open |
| Subject Keyword | Materials Manufacturing Engineering Spectroscopy Γ-al2o3 Amorphous-al2o3 Sol–gel Structural Characterization |
| Content Type | Text |
| Resource Type | Article |
