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@ARTICLE{Gder:189774,
      author       = {Güder, Firat and Frei, Elias and Kücükbayrak, Umut M.
                      and Menzel, Andreas and Thomann, Ralf and Luptak, Roman and
                      Holländer, Bernhard and Krossing, Ingo and Zacharias,
                      Margit},
      title        = {{E}ngineered {H}igh {A}spect {R}atio {V}ertical {N}anotubes
                      as a {M}odel {S}ystem for the {I}nvestigation of {C}atalytic
                      {M}ethanol {S}ynthesis {O}ver {C}u/{Z}n{O}},
      journal      = {ACS applied materials $\&$ interfaces},
      volume       = {6},
      number       = {3},
      issn         = {1944-8252},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2015-02804},
      pages        = {1576 - 1582},
      year         = {2014},
      abstract     = {Catalytically synthesized methanol from H2 and CO2 using
                      porous Cu/ZnO aggregates is a promising, carbon neutral, and
                      renewable alternative to replace fossil fuel based transport
                      fuels. However, the absence of surface-engineered model
                      systems to understand and improve the industrial Cu/ZnO
                      catalyst poses a big technological gap in efforts to
                      increase industrial methanol conversion efficiency. In this
                      work, we report a novel process for the fabrication of
                      patterned, vertically aligned high aspect ratio 1D
                      nanostructures on Si that can be used as an engineered model
                      catalyst. The proposed strategy employs near-field phase
                      shift lithography (NF-PSL), deep reactive ion etching
                      (DRIE), and atomic layer deposition (ALD) to pattern, etch,
                      and coat Si wafers to produce high aspect ratio 1D
                      nanostructures. Using this method, we produced a model
                      system consisting of high aspect ratio Cu-decorated ZnO
                      nanotubes (NTs) to investigate the morphological effects of
                      ZnO catalyst support in comparison to the planar Cu/ZnO
                      catalyst in terms of the catalytic reactions. The engineered
                      catalysts performed 70 times better in activating CO2 than
                      the industrial catalyst. In light of the obtained results,
                      several important points are highlighted, and
                      recommendations are made to achieve higher catalytic
                      performance.},
      cin          = {PGI-9},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-9-20110106},
      pnm          = {421 - Frontiers of charge based Electronics (POF2-421)},
      pid          = {G:(DE-HGF)POF2-421},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000331493200033},
      doi          = {10.1021/am4042959},
      url          = {https://juser.fz-juelich.de/record/189774},
}