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@ARTICLE{Hou:837916,
      author       = {Hou, Tingting and Luo, Nagchao and Li, Hongji and Heggen,
                      Marc and Lu, Jianmin and Wang, Yehong and Wang, Feng},
      title        = {{Y}in and {Y}ang {D}ual {C}haracters of {C}u{O}x {C}lusters
                      for {C}-{C} {B}and {O}xidation {D}riven by {V}isible
                      {L}ight},
      journal      = {ACS catalysis},
      volume       = {7},
      number       = {6},
      issn         = {2155-5435},
      address      = {Washington, DC},
      publisher    = {ACS},
      reportid     = {FZJ-2017-06686},
      pages        = {3850 - 3859},
      year         = {2017},
      abstract     = {Selective cleavage of C–C bonds is pursued as a useful
                      chemical transformation method in biomass utilization.
                      Herein, we report a hybrid CuOx/ceria/anatase nanotube
                      catalyst in the selective oxidation of C–C bonds under
                      visible light irradiation. Using the lignin β-1 model as a
                      substrate offers $96\%$ yields of benzaldehydes.
                      Characterization results by high angle annular dark field
                      scanning transmission electron microscopy (HAADF-STEM) and
                      energy-dispersive X-ray spectroscopy element (EDX) mapping
                      reveal that CuOx clusters are highly dispersed on the
                      exposed anatase surface as well as on the nanosized ceria
                      domains. In-depth investigations by Raman and ultraviolet
                      visible diffuse reflectance spectra (UV−vis DRS), together
                      with density functional theory (DFT) calculations, further
                      verify that the CuOx clusters present on the ceria domains
                      increase the concentration of surface defects (Ce3+ ions and
                      oxygen vacancies) and accordingly improve the photocatalytic
                      activity (Yang character); the CuOx clusters decorating on
                      anatase suppress the side reaction (oxy-dehydrogenation
                      without C–C bond cleavage) because of an upward shift in
                      the valence band (VB) edge of anatase (Yin character).
                      Mechanism investigation indicates hydrogen abstraction from
                      β-carbon by photogenerated holes is a vital step in the
                      conversion.},
      cin          = {ER-C-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000402851600014},
      doi          = {10.1021/acscatal.7b00629},
      url          = {https://juser.fz-juelich.de/record/837916},
}