Growth of Zif-8 on Molecularly Ordered 2-Methylimidazole/Single-Walled Carbon Nanotubes to Form Highly Porous, Electrically Conductive Composites


The combination of porosity and electrical conductivity in a single nanomaterial is important for a variety of applications. In this work, we demonstrate the growth of ZIF-8 on the surface of single-walled carbon nanotubes (SWCNTs). The growth mechanism was investigated and a molecularly ordered imidazole solvation layer was found to disperse SWCNTs and promote crystal growth on the sidewalls. The resultant ZIF-8/SWCNT composite demonstrates high microporosity and electrical conductivity. The ZIF-8/SWCNT composite displayed semiconducting electrical behavior and an increase in sensor sensitivity toward ethanol vapors versus pristine SWCNTs.


Includes supplementary material


Metal-organic frameworks, Field-effect transistors, Biomimetic mineralization, Water, Detectors, Adsorption


CC BY-NC 3.0 (Attribution-NonCommercial), ©2019 The Royal Society of Chemistry