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@ARTICLE{Rang:626127,
      author       = {Rang, Fabian and Delrieux, Tim and Maurer, Florian and
                      Flecken, Franziska and Grunwaldt, Jan-Dierk and Hanf,
                      Schirin},
      title        = {{S}upported {B}inuclear {G}old {P}hosphine {C}omplexes as
                      {CO} {O}xidation {C}atalysts: {I}nsights into the
                      {F}ormation of {S}urface‐{S}tabilized {A}u {P}articles},
      journal      = {Small science},
      volume       = {4},
      number       = {12},
      issn         = {2688-4046},
      address      = {Weinheim},
      publisher    = {Wiley-VCH GmbH},
      reportid     = {PUBDB-2025-01318},
      pages        = {2400345},
      year         = {2024},
      abstract     = {Atomically precise gold phosphine complexes as precursors
                      for supported Au catalysts tested in CO oxidation are
                      presented. Using a variety of analytical techniques,
                      including in situ and operando X-ray absorption
                      spectroscopy, it is discovered that minor changes in the
                      ligand of the molecular complexes result in significantly
                      different activation behaviors of supported Au catalysts
                      under reaction conditions. When using
                      [Au$_2$(μ$_2$-POP)$_2$]OTf$_2$
                      (POP = tetraphenylphosphoxane) as single-source
                      precursor, an active supported oxidation catalyst in second
                      light-off is obtained, outperforming a commercial Au/TiO$_2$
                      and a P-free Au/Al$_2$O$_3$ reference catalyst. Conversely,
                      using [Au$_2$(μ$_2$-dppe)$_2$]OTf$_2$
                      (dppe = diphenylphosphinoethane) on alumina leads to a
                      significant decrease in CO oxidation activity. This
                      difference is attributed to the formation of P-containing
                      ligand residues on the support in the case of
                      [Au$_2$(μ$_2$-POP)$_2$]OTf$_2$/Al$_2$O$_3$, which enhances
                      the thermal stability of the Au particles and affects the
                      particle's electronic properties through charge transfer
                      processes. This work provides insights into the dynamic
                      ligand decomposition of molecular gold complexes under
                      reaction conditions and demonstrates the delicate balance
                      between the stabilization of Au particles, clusters, and
                      complexes using ligands and the blocking of active sites.
                      This knowledge will pave the way for the targeted use of
                      molecular transition metal complexes as precursors in
                      synthesizing surface-stabilized nanoparticles.},
      cin          = {FS DOOR-User},
      ddc          = {500},
      cid          = {$I:(DE-H253)FS_DOOR-User-20241023$},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / SFB 1441 C02 -
                      Monolithische Katalysatoren mit enger
                      Partikelgrößenverteilung in Schichten mit definierten
                      Gradienten (C02) (446705995) / DFG project
                      G:(GEPRIS)460248799 - DAPHNE4NFDI - DAten aus PHoton- und
                      Neutronen Experimenten für NFDI (460248799) / DFG project
                      G:(GEPRIS)441926934 - NFDI4Cat – NFDI für Wissenschaften
                      mit Bezug zur Katalyse (441926934)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(GEPRIS)446705995 /
                      G:(GEPRIS)460248799 / G:(GEPRIS)441926934},
      experiment   = {EXP:(DE-H253)P-P65-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {40213476},
      UT           = {WOS:001330692500001},
      doi          = {10.1002/smsc.202400345},
      url          = {https://bib-pubdb1.desy.de/record/626127},
}