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@ARTICLE{Amende:829281,
      author       = {Amende, M. and Gleichweit, C. and Xu, T. and Höfert, O.
                      and Wasserscheid, P. and Steinrück, H.-P. and Papp,
                      Christian and Libuda, Jörg and Koch, M.},
      title        = {{D}icyclohexylmethane as a {L}iquid {O}rganic {H}ydrogen
                      {C}arrier: {A} {M}odel {S}tudy on the {D}ehydrogenation
                      {M}echanism over {P}d(111)},
      journal      = {Catalysis letters},
      volume       = {146},
      number       = {4},
      issn         = {1572-879X},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {FZJ-2017-03011},
      pages        = {851 - 860},
      year         = {2016},
      abstract     = {We have studied the dehydrogenation of the liquid organic
                      hydrogen carrier (LOHC) dicyclohexylmethane (DCHM) to
                      diphenylmethane (DPM) and its side reactions on a Pd(111)
                      single crystal surface. The adsorption and thermal evolution
                      of both DPM and DCHM was measured in situ in ultrahigh
                      vacuum (UHV) using synchrotron radiation-based
                      high-resolution X-ray photoelectron spectroscopy (HR-XPS).
                      We found that after deposition at 170 K, the hydrogen-lean
                      DPM undergoes C-H bond scission at the methylene bridge at
                      200 K and, starting at 360 K, complete dehydrogenation of
                      the phenyl rings occurs. Above 600 K, atomic carbon
                      incorporates into the Pd bulk. For the hydrogen-rich DCHM,
                      the first stable dehydrogenation intermediate, a double
                      π-allylic species, forms already at 190 K. Until 340 K,
                      further dehydrogenation of the phenyl rings and of the
                      methylene bridge occurs, yielding the same intermediate that
                      is formed upon heating of DPM to this temperature, that is,
                      DPM dehydrogenated at the methylene bridge. The onset for
                      the complete dehydrogenation of this intermediate occurs at
                      a much higher temperature than after adsorption of DPM. This
                      behavior is mainly attributed to coadsorbed hydrogen from
                      DCHM dehydrogenation. The results are discussed in
                      comparison to our previous study of DPM and DCHM on Pt(111)
                      revealing strong material dependencies.},
      cin          = {IEK-11},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-11-20140314},
      pnm          = {134 - Electrolysis and Hydrogen (POF3-134)},
      pid          = {G:(DE-HGF)POF3-134},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000372267200015},
      doi          = {10.1007/s10562-016-1711-z},
      url          = {https://juser.fz-juelich.de/record/829281},
}