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Hydrothermal Synthesis of PbTiO3 Nanocrystals with a pH-Adjusting Agent of Ammonia Solution
Xinyi Li,Zhi-Xiong Huang,Lian-Meng Zhang,Dongyun Guo 대한금속·재료학회 2018 ELECTRONIC MATERIALS LETTERS Vol.14 No.5
The PbTiO3nanocrystals were synthesized by a hydrothermal method, and ammonia solution was firstly used as a pH-adjustingagent. The effect of ammonia concentration on formation and morphologies of PbTiO3nanocrystals was investigated. At low ammonia concentration (0–2.2 mol/L), no perovskite PbTiO3phase was formed. When the ammonia concentrationwas 4.4 mol/L, the rod-like PbTiO3nanocrystals with highly crystalline were successfully synthesized. As the ammoniaconcentration further increased to 13.2 mol/L, the flake-like PbTiO3nanocrystals were formed.