| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1657009 | Surface and Coatings Technology | 2015 | 5 Pages |
•A facile strategy for coating carbon nanotubes with aluminium nitride was developed.•The strategy involved gradual sedimentation and ceramization of the precursor.•The oxidation resistance of the product was significantly improved.•The coating mechanism was proposed and verified.
Carbon nanotubes (CNTs) were coated by aluminium nitride (AlN) via a simple gradual sedimentation and ceramization route. Following a designed sequence, CNTs were coated with aluminium-containing precursor and carbon source, which were dissolved in a mixed solution of isopropanol and toluene; the subsequent pyrolysis and carbothermal nitridation generated AlN layer onto the CNT surface. The coating thickness was tunable from 1 to 2 nm, while maintaining defect free. Thermogravimetric analysis revealed that the onset oxidizing temperature of the product delayed from 525 to 707 °C, and more than 90% CNTs survived the oxidation. Furthermore, the coating mechanism was proposed and verified.
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