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@ARTICLE{Pronkin:53213,
      author       = {Pronkin, S. and Hara, M. and Wandlowski, Th.},
      title        = {{E}lectrocatalytical properties of {A}u(111-25nm) - {P}d
                      quasi-single crystal film electrodes as probed by
                      {ATR}-{SEIRAS}},
      journal      = {Russian journal of electrochemistry},
      volume       = {42},
      issn         = {1023-1935},
      address      = {Moscow},
      publisher    = {MAIK Nauka/Interperiodica Publ.},
      reportid     = {PreJuSER-53213},
      pages        = {1177 - 1192},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Electrochemical and electrocatalytic properties of thin
                      films Au(111-25 nm), which are quasi-single-crystal
                      electrodes 25 nm thick made of gold with the (I 11)
                      preferential orientation, and same electrodes modified with
                      a monolayer (ML) of palladium are studied in 0.1 M solutions
                      of HClO4 and H2SO4 employing voltammetric techniques and
                      surface enhanced infrared reflection absorption spectroscopy
                      (ATR-SEIRAS). Spectroscopic experiments demonstrate strong
                      adsorption of electrolyte species (H2O, OHads, anions) on
                      the Pd surface. The weak and reversible adsorption of CO on
                      Au(111-25 nm) does not change the interfacial-water
                      structure. Adsorption of CO on the Pd-modified film results
                      in an irreversibly adsorbed CO adlayer stabilized by
                      co-adsorbed isolated water species. Various electrooxidation
                      mechanisms are discussed. Electrochemical and spectroscopic
                      investigations on the adsorption and electrooxidation of
                      HCOOH on bare and I ML Pd-Au(111-25 nm) electrodes reveal
                      that electrooxidation proceeds in both cases via a direct or
                      dehydrogenation pathway. This mechanism involves the
                      formation of formate as intermediate, which is detected by
                      in situ ATR-SEIRAS. The reactivity on Pd-modified surfaces
                      is higher than on bare gold. The specifically adsorbed
                      anions (sulfate/bisulfate) and the oxide formation on the
                      substrate surface lower the reactivity for CO and HCOOH on
                      both surfaces.},
      keywords     = {J (WoSType)},
      cin          = {ISG-3 / CNI},
      ddc          = {540},
      cid          = {I:(DE-Juel1)VDB43 / I:(DE-Juel1)VDB381},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Electrochemistry},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000242234800004},
      doi          = {10.1134/S1023193506110048},
      url          = {https://juser.fz-juelich.de/record/53213},
}