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Charge Transfer Hybrids of Graphene Oxide and the Intrinsically Microporous Polymer PIM-1.pdf (720.16 kB)

Charge transfer hybrids of graphene oxide and the intrinsically microporous polymer PIM-1

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posted on 2023-06-09, 18:34 authored by Yuanyang Rong, Matthew LargeMatthew Large, Manoj TripathiManoj Tripathi, Sean OgilvieSean Ogilvie, Aline Amorim GrafAline Amorim Graf, Boyang Mao, Jacob Tunesi, Jonathan P Salvage, Alice KingAlice King, Alessia Pasquazi, Marco Peccianti, Richard Malpass-Evans, Neil B McKeown, Frank Marken, Alan DaltonAlan Dalton
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.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

ACS Applied Materials and Interfaces

ISSN

1944-8244

Publisher

American Chemical Society

Issue

34

Volume

11

Page range

31191-31199

Department affiliated with

  • Physics and Astronomy Publications

Research groups affiliated with

  • Materials Physics Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2019-08-05

First Open Access (FOA) Date

2020-08-02

First Compliant Deposit (FCD) Date

2019-08-04

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