Abstract
Combining polymeric materials and conductive one-dimensional metal nanostructures is able to achieve enhanced chemical and electrical properties, but the control over their morphology and spatial arrangement remains a big challenge. Herein, by replacing benzenedicarboxylate (BDC) in ZnBDC nanoplates with oleylamine (OAM) in the presence of HAuCl 4 , Zn-OAM nanobelts with a highly ordered laminar structure were obtained, on which ultrathin Au nanowires (Au NWs) were deposited and aligned along the long axes of the nanobelts. The resulting Zn-OAM/Au NW hybrid further underwent an OAM-to-2-methylimidazole ligand exchange, resulting in the formation of porous nanobelts composed of ZIF-8 nanocrystals interwound with aligned Au NWs. Due to the synergistic effect between the polymeric and metallic structures, the Zn-OAM/Au NW hybrid nanobelts and ZIF-8/Au NW porous nanobelts demonstrated fast and selective gas sensing at ambient conditions, in sharp contrast to the nonresponsive Au NWs or Zn-based polymers alone.
Original language | English |
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Pages (from-to) | 13624-13631 |
Number of pages | 8 |
Journal | ACS Applied Materials and Interfaces |
Volume | 11 |
Issue number | 14 |
DOIs | |
State | Published - 10 Apr 2019 |
Keywords
- aligned growth
- chemiresistive sensor
- coordination polymers
- gas sensing
- gold nanowires
- ligand exchange
- metal-organic frameworks