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Updated: Oct 7, 2025

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
Published on: October 27, 2018
High-Entropy Pyrochlore A2B2O7 with Both Heavy and Light Rare-Earth Elements at the A Site
Zhen Teng1,2, Yongqiang Tan2, Haibin Zhang2
1Department of Materials Science, Fudan University, 220 Handan Road, Shanghai 200433, China.
Abstract:
A novel class of high-entropy pyrochlore ceramics (HEPCs) with multiple heavy and light rare-earth elements at the A site were successfully synthesized via solid-state reaction. Both the XRD patterns and Raman spectroscopy demonstrated the single pyrochlore structure feature of seven kinds of HEPCs. Electron microscopic images revealed the typical morphology and the homogeneous distribution of all rare-earth elements. It can be concluded that the significance of configuration entropy in the HEPC system has promoted the tervalent lanthanide nuclides to form a single pyrochlore structure. This work is expected to provide guidance for the further design of high-entropy pyrochlore/fluorite ceramics.
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