posted on 2021-06-01, 21:03authored byMei-Hong Duan, Bo Kong, Xu-Kui Yang, Yu-Xin Li, Pei-Xin Ma, Xin-You An, Ti-Xian Zeng, Da-Bin Qin, Zhi Fang
An
open-frame aluminophosphate, K[(Zn0.5Al0.5)2P2O8] (KZAPO), was rationally
designed by a substitution design strategy and synthesized by a high-temperature
molten salt method. Compared with the parent crystal of K[ZnBP2O8], KZAPO was characterized by similar 4 ×
8 × 8 networks, a comparable short-wave ultraviolet transparency
and a more regular tetrahedral frame with the mixing of (ZnO4)6– and (AlO4)5– anionic
groups, highlighting the multifunctional roles that anionic group
mixing played in structural and property modulations. In particular,
KZAPO was characterized by a high thermal stability (over 850 °C)
and a congruent-melting behavior, being conducive to practical applications.