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@INPROCEEDINGS{Park:1020352,
      author       = {Park, Inhee and Henke, Kira and Weinrich, Hennng and de
                      Haart, L. G. J. and Tempel, Hermann and Eichel, Rüdiger-A.
                      and Hausen, Florian},
      title        = {{C}haracterization of {E}lectro- and {P}hoto-catalytic
                      materials by {S}canning {E}lectrochemical {M}icroscopy and
                      {S}canning {T}unneling {S}pectroscopy},
      reportid     = {FZJ-2024-00085},
      year         = {2023},
      abstract     = {The electrochemical reduction of carbon dioxide (CO2RR) has
                      gained tremendous attention in the past years as a possible
                      route to produce valuable chemicals and replacing fossil
                      fuels. In order to steer the selectivity of the final
                      products, a proper catalytic material should be chosen and
                      the electrochemical conditions such as electrolyte’s
                      buffer capacity and local pH should be controlled 1-3.
                      Furthermore, the photocatalytic materials can convert the
                      solar energy to the chemical fuels through CO2RR and water
                      splitting. Therefore, the understanding of processes at the
                      micro- and nanometer scale during electrochemical reaction
                      at the catalysts is of utmost importance and key to improve
                      the reaction efficiency.It has been shown by M. Koper’s
                      group that Scanning Electrochemical Microscopy (SECM) can
                      contribute to understanding the shift of local pH during
                      CO2RR 1, 4. Referring it, we present a SECM study of the
                      interface between different materials to investigate the
                      local selectivity. In addition to it, taking BiVO4 5, as an
                      example of photo-catalysts, we investigate the density of
                      states using Scanning Tunneling Spectroscopy (STS) depending
                      on the preparation method of BiVO4 films, which gives us a
                      hint for the critical factors related to the efficiency such
                      as defects and dominant phases.},
      month         = {Sep},
      date          = {2023-09-03},
      organization  = {74th annual ISE Meeting, Lyon
                       (France), 3 Sep 2023 - 8 Sep 2023},
      subtyp        = {After Call},
      cin          = {IEK-9},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {1223 - Batteries in Application (POF4-122) / iNEW2.0
                      (BMBF-03SF0627A)},
      pid          = {G:(DE-HGF)POF4-1223 / G:(DE-Juel1)BMBF-03SF0627A},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1020352},
}