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Charge Transfer Hybrids of Graphene Oxide and the Intrinsically Microporous Polymer PIM-1
- Source :
- ACS Applied Materials & Interfaces; August 2019, Vol. 11 Issue: 34 p31191-31199, 9p
- Publication Year :
- 2019
-
Abstract
- Nanohybrid materials based on nanoparticles of the intrinsically microporous polymer PIM-1 and graphene oxide (GO) are prepared from aqueous dispersions with a reprecipitation method, resulting in the surface of the GO sheets being decorated with nanoparticles of PIM-1. The significant blueshift in fluorescence signals for the GO/PIM-1 nanohybrids indicates modification of the optoelectronic properties of the PIM-1 in the presence of the GO due to their strong interactions. The stiffening in the Raman G peak of GO (by nearly 6 cm–1) further indicates p-doping of the GO in the presence of PIM. Kelvin probe force microscopy (KPFM) and electrochemical reduction measurements of the nanohybrids provide direct evidence for charge transfer between the PIM-1 nanoparticles and the GO nanosheets. These observations will be of importance for future applications of GO-PIM-1 nanohybrids as substrates and promoters in catalysis and sensing.
Details
- Language :
- English
- ISSN :
- 19448244
- Volume :
- 11
- Issue :
- 34
- Database :
- Supplemental Index
- Journal :
- ACS Applied Materials & Interfaces
- Publication Type :
- Periodical
- Accession number :
- ejs50721048
- Full Text :
- https://doi.org/10.1021/acsami.9b09832