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@ARTICLE{Stierle:462477,
      author       = {Stierle, Andreas and Kim, Young Yong and Keller, Thomas F.
                      and Goncalves, Tiago J. and Abuin, Manuel and Runge, Henning
                      and Gelisio, Luca and Carnis, Jerome and Vonk, Vedran and
                      Plessow, Philipp N. and Vartaniants, Ivan},
      title        = {{S}ingle {A}lloy {N}anoparticle {X}-ray {I}maging during a
                      {C}atalytic {R}eaction},
      journal      = {Science advances},
      volume       = {7},
      number       = {40},
      issn         = {2375-2548},
      address      = {Washington, DC [u.a.]},
      publisher    = {Assoc.},
      reportid     = {PUBDB-2021-03436},
      pages        = {eabh0757},
      year         = {2021},
      abstract     = {The imaging of active nanoparticles represents a milestone
                      in decoding heterogeneous catalysts’ dynamics. We report
                      the facet resolved, surface strain state of a single PtRh
                      alloy nanoparticle on SrTiO3 determined by coherent x-ray
                      diffraction imaging under catalytic reaction conditions.
                      Density functional theory calculations allow us to correlate
                      the facet surface strain state to its reaction environment
                      dependent chemical composition. We find that the initially
                      Pt 20 terminated nanoparticle surface gets Rh enriched under
                      CO oxidation reaction conditions. The local composition is
                      facet orientation dependent and the Rh enrichment is
                      non-reversible under subsequent CO reduction. Tracking facet
                      resolved strain and composition under operando conditions is
                      crucial for a rational design of more efficient
                      heterogeneous catalysts with tailored activity, selectivity
                      and lifetime.},
      cin          = {FS-NL / FS-PS / CFEL-I / Eur.XFEL},
      ddc          = {500},
      cid          = {I:(DE-H253)FS-NL-20120731 / I:(DE-H253)FS-PS-20131107 /
                      I:(DE-H253)CFEL-I-20161114 / $I:(DE-H253)Eur_XFEL-20120731$},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / $NFFA-Europe_supported$ - Technically
                      supported by Nanoscience Foundries and Fine Analysis Europe
                      $(2020_Join2-NFFA-Europe_funded)$ / DFG project 426888090 -
                      SFB 1441: Verfolgung der aktiven Zentren in heterogenen
                      Katalysatoren für die Emissionskontrolle (TrackAct)
                      (426888090)},
      pid          = {G:(DE-HGF)POF4-632 /
                      $G:(DE-HGF)2020_Join2-NFFA-Europe_funded$ /
                      G:(GEPRIS)426888090},
      experiment   = {EXP:(DE-H253)Nanolab-04-20150101 /
                      EXP:(DE-H253)Nanolab-02-20150101 /
                      EXP:(DE-H253)Nanolab-03-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:34597137},
      UT           = {WOS:000703091100013},
      doi          = {10.1126/sciadv.abh0757},
      url          = {https://bib-pubdb1.desy.de/record/462477},
}