Charge Transfer Hybrids of Graphene Oxide and the Intrinsically Microporous Polymer PIM-1

Yuanyang Rong, Matthew J. Large, Manoj Tripathi, Sean P. Ogilvie, Aline Amorim Graf, Boyang Mao, Jacob Tunesi, Jonathan P. Salvage, Alice A.K. King, Alessia Pasquazi, Marco Peccianti, Richard Malpass-Evans, Neil B. Mckeown, Frank Marken, Alan B. Dalton

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)31191-31199
Number of pages9
JournalACS Applied Materials and Interfaces
Volume11
Issue number34
Early online date2 Aug 2019
DOIs
Publication statusPublished - 28 Aug 2019

Keywords

  • catalysis
  • charge transfer
  • graphene oxide
  • microporous polymers
  • nanoparticles

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Rong, Y., Large, M. J., Tripathi, M., Ogilvie, S. P., Amorim Graf, A., Mao, B., Tunesi, J., Salvage, J. P., King, A. A. K., Pasquazi, A., Peccianti, M., Malpass-Evans, R., Mckeown, N. B., Marken, F., & Dalton, A. B. (2019). Charge Transfer Hybrids of Graphene Oxide and the Intrinsically Microporous Polymer PIM-1. ACS Applied Materials and Interfaces, 11(34), 31191-31199. https://doi.org/10.1021/acsami.9b09832