2020/04/04 by Dong He, Dong Sheng He, Yi Huang +14
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Alloy #Amorphous metal #Amorphous silicon #Amorphous solid #Catalysis #Chemical engineering #Chemistry #Crystalline silicon #Crystallography #Glass properties and applications #Hydrogen #Materials science #Metal #Metallic Glasses and Amorphous Alloys #Metallurgy #Nanoparticle #Nanoporous metals and alloys #Nanoscopic scale #Nanotechnology #Organic chemistry #Palladium #Silicon #Transmission electron microscopy #cond-mat.mtrl-sci
paper · pdf · doi:10.1007/s12274-022-4173-1
Nano Res. (2022)
arxiv created 2020/04/04 · openalex created_date 2020/04/10 · openalex publication_date 2022/03/21 · arxiv updated 2022/03/23 · openalex updated_date 2026/08/05
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.