Rong, Yuanyang, Large, Matthew J, Tripathi, Manoj, Ogilvie, Sean P, Amorim Graf, Aline, Mao, Boyang, Tunesi, Jacob, Salvage, Jonathan P, King, Alice A K, Pasquazi, Alessia, Peccianti, Marco, Malpass-Evans, Richard, McKeown, Neil B, Marken, Frank and Dalton, Alan B (2019) Charge transfer hybrids of graphene oxide and the intrinsically microporous polymer PIM-1. ACS Applied Materials and Interfaces, 11 (34). pp. 31191-31199. ISSN 1944-8244
![]() |
PDF
- Accepted Version
Download (737kB) |
Abstract
Nanohybrid materials based on nanoparticles of the intrinsically microporous polymer PIM-1 and graphene oxide (GO) are prepared from aqueous dispersions with a re-precipitation 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.
Item Type: | Article |
---|---|
Schools and Departments: | School of Mathematical and Physical Sciences > Physics and Astronomy |
Research Centres and Groups: | Materials Physics Group |
Subjects: | Q Science |
Depositing User: | Sean Paul Ogilvie |
Date Deposited: | 05 Aug 2019 13:08 |
Last Modified: | 26 Apr 2021 13:15 |
URI: | http://sro.sussex.ac.uk/id/eprint/85314 |
View download statistics for this item
📧 Request an update