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
Department of Chemistry , University of Pittsburgh , Pittsburgh , PA 15260 , USA . Email:
Department of Chemistry and Biochemistry , University of Texas at Dallas , TX 75080 , USA.
Chem Sci. 2018 Oct 25;10(3):737-742. doi: 10.1039/c8sc03987a. eCollection 2019 Jan 21.
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.
单一纳米材料中孔隙率和电导率的结合对多种应用都很重要。在这项工作中，我们展示了ZIF-8在单壁碳纳米管（SWCNT）表面的生长。研究了生长机制，发现分子有序的咪唑溶剂化层可分散SWCNT并促进侧壁上的晶体生长。所得的ZIF-8/SWCNT复合材料具有高微孔率和电导率。ZIF-8/SWCNT复合材料表现出半导体电学行为，并且对乙醇蒸气的传感器灵敏度比原始SWCNT有所提高。
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