Structural Evolution of Zeolitic Imidazolate Framework-8

We report the structural evolution of zeolitic imidazolate framework-8 (ZIF-8) as a function of time at room temperature. We have identified the different stages of ZIF-8 formation (nucleation, crystallization, growth, and stationary periods) and elucidated its kinetics of transformation. We hypothe...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the American Chemical Society 2010-12, Vol.132 (51), p.18030-18033
Main Authors: Venna, Surendar R, Jasinski, Jacek B, Carreon, Moises A
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report the structural evolution of zeolitic imidazolate framework-8 (ZIF-8) as a function of time at room temperature. We have identified the different stages of ZIF-8 formation (nucleation, crystallization, growth, and stationary periods) and elucidated its kinetics of transformation. We hypothesize that the observed semicrystalline-to-crystalline transformation may take place via solution- and solid-mediated mechanisms, as suggested by the observed phase transformation evolution and Avrami’s kinetics, respectively. A fundamental understanding of ZIF-8 structural evolution as demonstrated in this study should facilitate the preparation of functional metal−organic framework phases with controlled crystal size and extent of crystallinity.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja109268m