• 文献标题:   A density functional theory study of simplest nanocomposites formed by graphene oxide and polyvinyl alcohol: geometry, interaction energy and vibrational spectrum
  • 文献类型:   Article
  • 作  者:   GORB L, ILCHENKO M, LESZCZYNSKI J
  • 作者关键词:   density functional theory, graphene oxide, polyvinyl alcohol, intercalate, interaction energy, ir spectra
  • 出版物名称:   JOURNAL OF MOLECULAR MODELING
  • ISSN:   1610-2940 EI 0948-5023
  • 通讯作者地址:   Jackson State Univ
  • 被引频次:   0
  • DOI:   10.1007/s00894-020-04447-9
  • 出版年:   2020

▎ 摘  要

A density functional theory augmented by the long-range corrected hybrid density functional omega B97XD and 6-31G(d,p) basis set has been applied to generate sandwich structures consist of nanocomposites between graphene oxide and polyvinyl alcohol. We predicted the interaction energies and discuss the contribution of electrostatic and dispersion components. Also, we computationally generated IR spectra of intercalates and compared them with those experimentally obtained. Two sources of interaction energy to stabilize the intercalates between graphene oxide and PVA are suggested. They are the electrostatic and dispersion (van-der-Waals) components. We also revealed that omega B97XD density functional in conjunction with 6-31G(d,p) basis set is qualitatively able to describe IR spectra of considered species.