• 文献标题:   Charge Transfer Hybrids of Graphene Oxide and the Intrinsically Microporous Polymer PIM-1
  • 文献类型:   Article
  • 作  者:   RONG YY, LARGE MJ, TRIPATHI M, OGILVIE SP, GRAF AA, MAO BY, TUNESI J, SALVAGE JP, KING AAK, PASQUAZI A, PECCIANTI M, MALPASSEVANS R, MCKEOWN NB, MARKEN F, DALTON AB
  • 作者关键词:   graphene oxide, microporous polymer, nanoparticle, charge transfer, catalysi
  • 出版物名称:   ACS APPLIED MATERIALS INTERFACES
  • ISSN:   1944-8244 EI 1944-8252
  • 通讯作者地址:   Univ Sussex
  • 被引频次:   0
  • DOI:   10.1021/acsami.9b09832
  • 出版年:   2019

▎ 摘  要

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.