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@ARTICLE{Gleissner:580644,
      author       = {Gleissner, Robert and Chung, Simon and Dalla Lana Semione,
                      Guilherme and Jacobse, Leon and Wagstaffe, Michael and
                      Tober, Steffen and Neumann, Anika Joanne and Gizer, Goekhan
                      and Goodwin, Christopher and Soldemo, Markus and Shipilin,
                      Mikhail and Loemker, Patrick and Schlueter, Christoph and
                      Gutowski, Olof and Muntwiler, Matthias and Amann, Peter and
                      Noei, Heshmat and Vonk, Vedran and Stierle, Andreas},
      title        = {{R}ole of {O}xidation–{R}eduction {D}ynamics in the
                      {A}pplication of {C}u/{Z}n{O}-{B}ased {C}atalysts},
      journal      = {ACS applied nano materials},
      volume       = {6},
      number       = {9},
      issn         = {2574-0970},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {PUBDB-2023-01346},
      pages        = {8004 - 8016},
      year         = {2023},
      abstract     = {We investigated Cu nanoparticles (NPs) on vicinal and basal
                      ZnO supports to obtain anatomistic picture of the
                      catalyst’s structure under in situ oxidizing and reducing
                      conditions.The Cu/ZnO model catalysts were investigated at
                      elevated gas pressures by highenergy grazing incidence X-ray
                      diffraction and ambient pressure X-ray
                      photoelectronspectroscopy (AP-XPS). We find that the Cu
                      nanoparticles are fully oxidized to Cu$_2$Ounder atmospheric
                      conditions at room temperature. As the nanoparticles swell
                      duringoxidation, they maintain their epitaxy on basal ZnO
                      (000±1) surfaces, whereas on thevicinal ZnO (10$\bar{14}$)
                      surface, the nanoparticles undergo a coherent tilt. We find
                      thatthe oxidation process is fully reversible under H$_2$
                      flow at 500 K, resulting in predominantlywell-aligned
                      nanoparticles on the basal surfaces, whereas the orientation
                      of CuNPs on vicinal ZnO was only partially restored. The
                      analysis of the substrate crystaltruncation rods evidences
                      the stability of basal ZnO surfaces under all gas
                      conditions.No Cu-Zn bulk alloy formation is observed. Under
                      CO$_2$ flow, no diffraction signalfrom the nanoparticles is
                      detected, pointing to their completely disordered state.
                      TheAP-XPS results are in line with the formation of CuO.
                      Scanning electron microscopyimages show that massive mass
                      transport has set in, leading to the formation of
                      largeragglomerates.},
      cin          = {FS-NL / U HH / PSI / FS-PETRA-S / Hereon},
      ddc          = {540},
      cid          = {I:(DE-H253)FS-NL-20120731 / $I:(DE-H253)U_HH-20120814$ /
                      I:(DE-H253)PSI-20200229 / I:(DE-H253)FS-PETRA-S-20210408 /
                      I:(DE-H253)Hereon-20210428},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      DFG project 390715994 - EXC 2056: CUI: Advanced Imaging of
                      Matter (390715994) / DFG project 194651731 - EXC 1074:
                      Hamburger Zentrum für ultraschnelle Beobachtung (CUI):
                      Struktur, Dynamik und Kontrolle von Materie auf atomarer
                      Skala (194651731) / HIRS-0018 - Helmholtz-Lund International
                      School - Intelligent instrumentation for exploring matter at
                      different time and length scales (HELIOS) $(2020_HIRS-0018)$
                      / SWEDEN-DESY - SWEDEN-DESY Collaboration
                      $(2020_Join2-SWEDEN-DESY)$},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      G:(GEPRIS)390715994 / G:(GEPRIS)194651731 /
                      $G:(DE-HGF)2020_HIRS-0018$ /
                      $G:(DE-HGF)2020_Join2-SWEDEN-DESY$},
      experiment   = {EXP:(DE-H253)P-P07-20150101 / EXP:(DE-H253)P-P22-20150101 /
                      EXP:(DE-H253)Nanolab-01-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000985512600001},
      doi          = {10.1021/acsanm.3c01306},
      url          = {https://bib-pubdb1.desy.de/record/580644},
}