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@ARTICLE{Cui:173074,
      author       = {Cui, Chunhua and Gan, Lin and Neumann, Maximilian and
                      Heggen, Marc and Strasser, Peter},
      title        = {{C}arbon {M}onoxide-{A}ssisted {S}ize-{C}onfinement of
                      {B}imetallic {A}lloy {N}anoparticles},
      journal      = {Journal of the American Chemical Society},
      volume       = {136},
      issn         = {0002-7863},
      address      = {Washington, DC},
      publisher    = {American Chemical Society},
      reportid     = {FZJ-2014-06487},
      pages        = {4813 4816},
      year         = {2014},
      abstract     = {Colloid-based chemical synthesis methodsof bimetallic alloy
                      nanoparticles (NPs) provide goodmonodispersity, yet
                      generally show a strong variation ofthe resulting mean
                      particle size with alloy composition.This severely
                      compromises accurate correlation betweencomposition of alloy
                      particles and their size-dependentproperties. To address
                      this issue, a general CO adsorptionassistedcapping
                      ligand-free solvothermal synthesis methodis reported which
                      provides homogeneous bimetallic NPswith almost perfectly
                      constant particle size over anunusually wide compositional
                      range. Using Pt−Ni alloyNPs as an example, we show that
                      variation of the reactiontemperature between 160 and 240 °C
                      allows for precisecontrol of the resulting alloy particle
                      bulk compositionbetween 15 and 70 atomic $\%$ Ni, coupled
                      with a constantmean particle size of ∼4 nm. The
                      size-confining and Nicontent-controlling role of CO during
                      the nucleation andgrowth processes are investigated and
                      discussed. Datasuggest that size-dependent CO surface
                      chemisorption andreversible Ni-carbonyl formation are key
                      factors for theachievement of a constant particle size and
                      temperaturecontrolledNi content. To demonstrate the
                      usefulness ofthe independent control of size and
                      composition, sizedeconvolutedrelations between composition
                      and electrocatalyticproperties are established. Refining
                      earlier reports,we uncover intrinsic monotonic relations
                      between catalyticactivity and initial Ni content, as
                      expected from theoreticalconsiderations.},
      cin          = {PGI-5},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {424 - Exploratory materials and phenomena (POF2-424)},
      pid          = {G:(DE-HGF)POF2-424},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000333947900005},
      doi          = {10.1021/ja4124658},
      url          = {https://juser.fz-juelich.de/record/173074},
}