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@ARTICLE{Escolstico:849644,
      author       = {Escolástico, S. and Stournari, V. and Malzbender, J. and
                      Haas-Santo, K. and Dittmeyer, R. and Serra, J. M.},
      title        = {{C}hemical stability in {H} 2 {S} and creep
                      characterization of the mixed protonic conductor {N}d 5.5
                      {WO} 11.25-δ},
      journal      = {International journal of hydrogen energy},
      volume       = {43},
      number       = {17},
      issn         = {0360-3199},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2018-03785},
      pages        = {8342 - 8354},
      year         = {2018},
      abstract     = {The integration of hydrogen permeable membranes in
                      catalytic membrane reactors for thermodynamically limited
                      reactions such as steam methane reforming can improve the
                      per-pass yield and simultaneously produce a high-purity H2
                      stream. Mixed protonic-electronic materials based membranes
                      are potential candidates for these applications due to their
                      elevated temperature operation, good stability and
                      potentially low cost. However, a specific mechanical
                      behavior and stability under harsh atmospheres is needed to
                      guarantee sufficient lifetime in real-world processes. This
                      work presents the mechanical characterization and a study of
                      the chemical stability under H2S containing atmospheres for
                      the compound Nd5.5WO11.25-δ. Mechanical characterization
                      was performed by micro-indentation and creep measurements in
                      air. Chemical stability was evaluated by XRD and SEM and the
                      effect of the H2S on the transport properties was evaluated
                      by impedance spectroscopy. Under H2S atmospheres, the total
                      conductivity increases at 600 °C and 700 °C. The
                      conductivity increase is attributed to the incorporation of
                      S2− ions in oxide-ion sublattice.},
      cin          = {IEK-2},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-2-20101013},
      pnm          = {111 - Efficient and Flexible Power Plants (POF3-111)},
      pid          = {G:(DE-HGF)POF3-111},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000431747600016},
      doi          = {10.1016/j.ijhydene.2018.03.060},
      url          = {https://juser.fz-juelich.de/record/849644},
}