Electrophoretic Deposition of Superhydrophobic Al/Fe2O3 Nanothermite with Long–Term Storage Stability

In this study, a superhydrophobic Al/Fe 2 O 3 nanothermite with long–term storage stability was prepared by electrophoretic deposition of nano–Al particles and nano– Fe 2 O 3 microboxes on Ti substrate and subsequent modification process. The composition and morphology of Al/ Fe 2 O 3 nanothermite were systematically characterised through X–ray diffraction and scanning electron microscope. In addition, the water contact angle measurements and the immersion test demonstrated the excellent superhydrophobic properties of the as–prepared Al/ Fe 2 O 3 nanothermite. 10 days after underwater immersion, the heat release of the superhydrophobic Al/ Fe 2 O 3 nanothermite remained 982.7 J/g, which was higher than 514.6 J/g of the sample without superhydrophobic treatment. This work provides a beneficial sight for enhancing the long–term storage stability of nanothermite in practical application.