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Updated: Dec 10, 2025

Molten-Salt Synthesis of Complex Metal Oxide Nanoparticles
Published on: October 27, 2018
Molten Salt Synthesis of an Open-Frame Aluminum Phosphate Ba3Al2P4O16 with a Rare-Pyramidal AlO5 Group
Meihong Duan1,2, Bo Kong3, Rukang Li1,2
1Beijing Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Abstract:
A new open-frame aluminophosphate, Ba3Al2P4O16, was synthesized by a high-temperature flux method. Ba3Al2P4O16 features discrete [Al4P8O32]∞12- chains with rare square-pyramidal AlO5 groups adopted. Especially, this pyramidal AlO5 group acts as an ideal "plane builder" or "vacancy inducer" to construct open-frame structures compared with an ordinary trigonal-bipyramidal AlO5 group.

