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@ARTICLE{Huang:917504,
      author       = {Huang, Jun},
      title        = {{Z}ooming into the {I}nner {H}elmholtz {P}lane of
                      {P}t(111)-{A}queous {S}olution {I}nterfaces: {C}hemisorbed
                      {W}ater and {P}artially-{C}harged {I}ons},
      journal      = {JACS Au},
      volume       = {3},
      number       = {2},
      issn         = {2691-3704},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {FZJ-2023-00717},
      pages        = {550-564},
      year         = {2023},
      abstract     = {The double layer on transition metals, i.e., platinum,
                      features chemical metal–solvent interactions and partially
                      charged chemisorbed ions. Chemically adsorbed solvent
                      molecules and ions are situated closer to the metal surface
                      than electrostatically adsorbed ions. This effect is
                      described tersely by the concept of an inner Helmholtz plane
                      (IHP) in classical double layer models. The IHP concept is
                      extended here in three aspects. First, a refined statistical
                      treatment of solvent (water) molecules considers a
                      continuous spectrum of orientational polarizable states,
                      rather than a few representative states, and
                      non-electrostatic, chemical metal–solvent interactions.
                      Second, chemisorbed ions are partially charged, rather than
                      being electroneutral or having integral charges as in the
                      solution bulk, with the coverage determined by a
                      generalized, energetically distributed adsorption isotherm.
                      The surface dipole moment induced by partially charged,
                      chemisorbed ions is considered. Third, considering different
                      locations and properties of chemisorbed ions and solvent
                      molecules, the IHP is divided into two planes, namely, an
                      AIP (adsorbed ion plane) and ASP (adsorbed solvent plane).
                      The model is used to study how the partially charged AIP and
                      polarizable ASP lead to intriguing double-layer capacitance
                      curves that are different from what the conventional
                      Gouy–Chapman–Stern model describes. The model provides
                      an alternative interpretation for recent capacitance data of
                      Pt(111)–aqueous solution interfaces calculated from cyclic
                      voltammetry. This revisit brings forth questions regarding
                      the existence of a pure double-layer region at realistic
                      Pt(111). The implications, limitations, and possible
                      experimental confirmation of the present model are
                      discussed.},
      cin          = {IEK-13},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-13-20190226},
      pnm          = {1215 - Simulations, Theory, Optics, and Analytics (STOA)
                      (POF4-121)},
      pid          = {G:(DE-HGF)POF4-1215},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36873696},
      UT           = {WOS:000923981500001},
      doi          = {10.1021/jacsau.2c00650},
      url          = {https://juser.fz-juelich.de/record/917504},
}