Journal
APPLIED SURFACE SCIENCE
Volume 348, Issue -, Pages 71-74Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.02.044
Keywords
Laser ablation; Core-shell nanoparticles; Laser melting; Hydrogen storage
Categories
Funding
- RF President's Grants Council [NSh-4484.2014.2]
- RFBR [15-02-04510]
- [SP-1442.2012.3]
- [SP-753.2015.2]
- [MK-4194.2015.2]
- [SP-3546.2013.2]
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Core-shell Al@Ti nanoparticles are generated by ablation of a composite Ti-Al target in liquid isopropanol saturated with molecular hydrogen using a Nd:YAG laser with pulse duration of lops and repetition rate of 200 kHz. The target is made of two plates of corresponding metals stacked together and placed into a flowing cell reactor. Transmission Electron Microscopy analysis of generated NPs reveals their core-shell structure with Ti core and Al shell. Average size of NPs determined by means of measuring disk centrifuge is around 40 nm. Saturation of NPs by hydrogen is due to sharp dependence of its solubility in these metals on temperature. XRD studies of generated NPs show the peaks of both metallic Ti and Al with some amount of TiO2. No peaks of Ti-Al alloys are observed. (C) 2015 Elsevier B.V. All rights reserved.
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