1. Nanosized Monoatomic Palladium Metallic Glass
- Author
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He, Dong Sheng, Huang, Yi, Myers, Benjamin D., Isheim, Dieter, Fan, Xinyu, Deng, Yunsheng, Xie, Lin, Han, Shaobo, Qiu, Yang, Huang, Li, Dravid, Vinayak P., and He, Jiaqing
- Subjects
Condensed Matter - Materials Science ,Materials Science (cond-mat.mtrl-sci) ,FOS: Physical sciences - Abstract
Physically vitrifying single-element metallic glass requires ultrahigh cooling rates, which are still unachievable for most of the closest-packed metals. Here, we report a facile synthetic strategy for creating mono-atomic palladium metallic glass nanoparticles with a purity of 99.35 +/- 0.23 at% from palladium-silicon liquid droplets using a cooling rate below 1000 K/s. In-situ environmental transmission electron microscopy directly detected the leaching of silicon. Further hydrogen absorption experiment showed that this palladium metallic glass expanded little upon hydrogen uptake, exhibiting a great potential application for hydrogen separation. Our results provide insight into the formation of mono-atomic metallic glass at nanoscale., Comment: Nano Res. (2022)
- Published
- 2020
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