High-yield synthesis of zeolitic imidazolate frameworks from stoichiometric metal and ligand precursor aqueous solutions at room temperature

• DOI: 10.1039/c3ce27093a
• Publication Date: 2013-03-02T03:00:20Z
• Authors: Jianfeng Yao; Ming He; Kun Wang; Rizhi Chen; Zhaoxiang Zhong; Huanting Wang
• Keywords: Zeolitic imidazolate framework; Ammonium hydroxide; Stoichiometry; Imidazolate

Zeolitic imidazolate frameworks ZIF-8 and ZIF-67 were prepared from stoichiometric metal ligand aqueous solutions at room temperature within 10 min. Triblock copolymer ammonium hydroxide are both essential for the formation of ZIFs. Ammonium in solution deprotonates 2-methylimidazole, PEO groups triblock surfactant electrostatically attract ions, leading to ZIF-67. The yield is more than 98%, which highest so far. This method very promising efficient environmentally friendly synthesis ZIFs practical applications.