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@ARTICLE{Thalinger:200838,
      author       = {Thalinger, Ramona and Opitz, Alexander K. and Kogler,
                      Sandra and Heggen, Marc and Stroppa, Daniel and Schmidmair,
                      Daniela and Tappert, Ralf and Fleig, Jürgen and Klötzer,
                      Bernhard and Penner, Simon},
      title        = {{W}ater-{G}as {S}hift and {M}ethane {R}eactivity on
                      {R}educible {P}erovskite-{T}ype {O}xides},
      journal      = {The journal of physical chemistry / C},
      volume       = {119},
      number       = {21},
      issn         = {1932-7455},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2015-03218},
      pages        = {11739 - 11753},
      year         = {2015},
      abstract     = {Comparative (electro)catalytic, structural, and
                      spectroscopic studies in hydrogen electro-oxidation, the
                      (inverse) water-gas shift reaction, and methane conversion
                      on two representative mixed ionic–electronic conducting
                      perovskite-type materials La0.6Sr0.4FeO3−δ (LSF) and
                      SrTi0.7Fe0.3O3−δ (STF) were performed with the aim of
                      eventually correlating (electro)catalytic activity and
                      associated structural changes and to highlight intrinsic
                      reactivity characteristics as a function of the reduction
                      state. Starting from a strongly prereduced (vacancy-rich)
                      initial state, only (inverse) water-gas shift activity has
                      been observed on both materials beyond ca. 450 °C but no
                      catalytic methane reforming or methane decomposition
                      reactivity up to 600 °C. In contrast, when starting from
                      the fully oxidized state, total methane oxidation to CO2 was
                      observed on both materials. The catalytic performance of
                      both perovskite-type oxides is thus strongly dependent on
                      the degree/depth of reduction, on the associated reactivity
                      of the remaining lattice oxygen, and on the
                      reduction-induced oxygen vacancies. The latter are clearly
                      more reactive toward water on LSF, and this higher
                      reactivity is linked to the superior electrocatalytic
                      performance of LSF in hydrogen oxidation. Combined electron
                      microscopy, X-ray diffraction, and Raman measurements in
                      turn also revealed altered surface and bulk structures and
                      reactivities.},
      cin          = {PGI-5},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000355495600053},
      pubmed       = {pmid:26045733},
      doi          = {10.1021/acs.jpcc.5b02947},
      url          = {https://juser.fz-juelich.de/record/200838},
}