Adsorption and stability of malonic acid on rutile TiO2 (110), studied by near edge X-ray absorption fine structure and photoelectron spectroscopy

Research output: Contribution to journalArticle

  • External authors:
  • Karen L. Syres
  • Ben F. Spencer
  • Mark J. Jackman
  • Vinod R. Dhanak


The adsorption of malonic acid on rutile TiO2 (110) has been studied using photoelectron spectroscopy and C K-edge, near edge X-ray fine structure spectroscopy (NEXAFS). Analysis of the O 1s and Ti 2p spectra suggest that the molecule adsorbs dissociatively in a doubly-bidentate adsorption geometry as malonate. The data are unable to distinguish between a chelating bonding mode with the backbone of the molecule lying along the [001] azimuth or a bridging geometry along the direction. Work carried out on a wiggler beamline suggests that the molecule is unstable under irradiation by high-flux synchrotron radiation from this type of insertion device.

Bibliographical metadata

Original languageEnglish
Pages (from-to)14-20
Number of pages6
JournalSurface Science
StatePublished - Aug 2014