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

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Abstract

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.

Description

Includes supplementary material

Keywords

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

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Rights

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

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