Facile Precipitation Method for Morphological Tuning of Cu2O Crystals

Bulletin of the Korean chemical society

Young-Sik Cho¹  Young-Duk Huh¹ 

关键词: Morphology;    Cu2O;    Precipitation method;    Crystal growth;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

We have developed a simple method for tuning the morphologies of Cu2O microcrystals. Cu2O microcrystals were prepared by precipitation at room temperature from a mixture of Cu(CH3COO)2·H2O, N,N,N`,N`- tetramethyl ethylenediamine (TMEDA), ascorbic acid, and polyethylene glycol (PEG). TMEDA was used to promote the formation of copper-TMEDA complexes. A variety of Cu2O microcrystal morphologies were obtained simply by varying the concentrations of TMEDA and ascorbic acid. Aggregated Cu2O microspheres are formed at higher concentrations of ascorbic acid in the absence of TMEDA. Aggregated Cu2O microcubes are formed at lower concentrations of ascorbic acid and higher concentrations of TMEDA. The crystal growth mechanism of these Cu2O morphologies is explained.

【 授权许可】

Unknown