Single-element amorphous palladium nanoparticles formed via phase separation

Dong Sheng He, Yi Huang, Benjamin D. Myers, Dieter Isheim, Xinyu Fan, Guang Jie Xia, Yunsheng Deng, Lin Xie, Shaobo Han, Yang Qiu, Yang Gang Wang, Junhua Luan, Zengbao Jiao, Li Huang, Vinayak P. Dravid, Jiaqing He*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Physically vitrifying amorphous single-element metal requires ultrahigh cooling rates, which are still unachievable for most of the closest-packed metals. Here, we report a facile chemical synthetic strategy for single-element amorphous palladium nanoparticles with a purity of 99.35 at.% ± 0.23 at.% from palladium—silicon liquid droplets. In-situ transmission electron microscopy directly detected the solidification of palladium and the separation of silicon. Further hydrogen absorption experiment showed that the amorphous palladium expanded little upon hydrogen uptake, exhibiting a great potential application for hydrogen separation. Our results provide insight into the formation of amorphous metal at nanoscale. [Figure not available: see fulltext.]

Original languageEnglish (US)
Pages (from-to)5575-5580
Number of pages6
JournalNano Research
Issue number6
StatePublished - Jun 2022


  • Pd
  • metallic glass
  • nanoparticle
  • phase separation
  • single-element
  • undercooling

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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