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@ARTICLE{Creutzburg:483080,
      author       = {Creutzburg, Marcus and Konuk, Mine and Tober, Steffen and
                      Chung, Simon and Arndt, Bjoern and Noei, Heshmat and
                      Meissner, Robert and Stierle, Andreas},
      title        = {{A}dsorption of {O}leic {A}cid on {M}agnetite {F}acets},
      journal      = {Communications chemistry},
      volume       = {5},
      issn         = {2399-3669},
      address      = {[London]},
      publisher    = {Macmillan Publishers Limited, part of Springer Nature},
      reportid     = {PUBDB-2022-05102},
      pages        = {134},
      year         = {2022},
      abstract     = {The microscopic understanding of the atomic structure and
                      interaction at carboxylic acid/oxide interfaces is an
                      important step towards tailoring the mechanical properties
                      of nanocomposite materials assembled from metal oxide
                      nanoparticles functionalized by organic molecules. We have
                      studied the adsorption of oleic acid (C$_{17}$H$_{33}$COOH)
                      on the most prominent magnetite (001) and (111) crystal
                      facets at room temperature using low energy electron
                      diffraction, surface X-ray diffraction and infrared
                      vibrational spectroscopy complemented with molecular
                      dynamics simulations used to infer specific hydrogen bonding
                      motifs between oleic acid and oleate. Our experimental and
                      theoretical results give evidence that oleic acid adsorbs
                      dissociatively on both facets at lower coverages. At higher
                      coverages, the more pronounced molecular adsorption causes
                      hydrogen bond formation between the carboxylic groups,
                      leading to a more upright orientation of the molecules on
                      the (111) facet in conjunction with the formation of a
                      denser layer, as compared to the (001) facet. This is
                      evidenced by the C=O double bond infrared line shape, in
                      depth molecular dynamics bond angle orientation and hydrogen
                      bond analysis, as well as X-ray reflectivity layer electron
                      density profile determination. Such a higher density can
                      explain the higher mechanical strength of nanocomposite
                      materials based on magnetite nanoparticles with larger (111)
                      facets.},
      cin          = {FS-NL},
      ddc          = {540},
      cid          = {I:(DE-H253)FS-NL-20120731},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / SFB 986 A07 - Adsorption organischer
                      Säuren auf Oxidoberflächen und Nanostrukturen (A07)
                      (318017425) / SFB 986 A08 - Molekulardynamische Simulation
                      der Selbstassemblierung von organisch funktionalisierten
                      keramischen Nanopartikeln (A08) (407591998)},
      pid          = {G:(DE-HGF)POF4-632 / G:(GEPRIS)318017425 /
                      G:(GEPRIS)407591998},
      experiment   = {EXP:(DE-H253)Nanolab-01-20150101 /
                      EXP:(DE-H253)Nanolab-02-20150101 /
                      EXP:(DE-H253)Nanolab-04-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36697717},
      UT           = {WOS:000871217600001},
      doi          = {10.1038/s42004-022-00741-0},
      url          = {https://bib-pubdb1.desy.de/record/483080},
}