Premium
Solvent‐Free Synthesis of Zeolitic Imidazolate Frameworks and the Catalytic Properties of Their Carbon Materials
Author(s) -
Xiao Yuchen,
Hong Anh N.,
Hu Dandan,
Wang Yanxiang,
Bu Xianhui,
Feng Pingyun
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201903888
Subject(s) - zeolitic imidazolate framework , catalysis , carbonization , metal organic framework , imidazolate , crystallization , eutectic system , carbon fibers , materials science , chemical engineering , solvent , deep eutectic solvent , salt (chemistry) , adsorption , chemistry , inorganic chemistry , organic chemistry , composite number , engineering , composite material , alloy
Zeolitic imidazolate frameworks (ZIFs) are traditionally synthesized solvothermally by using cost‐ and waste‐incurring organic solvents. Here, a direct synthesis method is reported for ZIF‐8, ZIF‐67, and their heterometallic versions from solid precursors only. This solvent‐free crystallization method not only completely avoids organic solvents, but also provides an effective path for the synthesis of homogeneous mixed‐metal ZIFs. Furthermore, under templating by NaCl/ZnCl 2 eutectic salt, carbonization of the ZIF materials gives rise to a series of N‐containing high‐surface‐area carbon materials with impressive catalytic properties for the oxygen reduction reaction.