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 imi...

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Bibliographic Details
Published in:Chemical science (Cambridge) 2019-01, Vol.10 (3), p.737-742
Main Authors: Ellis, James E, Zeng, Zidao, Hwang, Sean I, Li, Shaobo, Luo, Tian-Yi, Burkert, Seth C, White, David L, Rosi, Nathaniel L, Gassensmith, Jeremiah J, Star, Alexander
Format: Article
Language:English
Subjects:
Crystal growth
Electrical resistivity
Ethanol
Imidazole
Microporosity
Nanomaterials
Porosity
Raman spectroscopy
Single wall carbon nanotubes
Solvation
Zeta potential
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Summary: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 pristine SWCNTs.
ISSN:2041-6520
2041-6539
DOI:10.1039/c8sc03987a