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@INPROCEEDINGS{Jeong:841666,
      author       = {Jeong, Hyeondeok and Menzler, Norbert H. and Lenser,
                      Christian and Guillon, Olivier},
      title        = {{S}olid {O}xide {F}uel {C}ell ({SOFC}) {C}ermet {A}nodes
                      {R}esistant to {C}arbon {D}eposition and {S}ulfur
                      {P}oisoning},
      reportid     = {FZJ-2017-08696},
      year         = {2017},
      abstract     = {Due to their high operating temperature (700-1000 ̊C),
                      solid oxide fuel cells (SOFCs) are in principle able to work
                      with various types of hydrocarbon fuels, such as natural
                      gas, reformed coal gas (syngas) and biofuels, without high
                      cost catalysts or external reformer. Furthermore, SOFCs have
                      high converting efficiency and environmental compatibility.
                      Because of these attractive features, SOFCs are expected to
                      take over a major role in energy converting technologies in
                      near future. However, for the direct use of commercial hydro
                      carbon fuels in SOFCs, there are several technical
                      challenges still remaining such as sulfur poisoning and
                      carbon deposition on anode surface. Currently,
                      Ni/yttria-stabilized zirconia (YSZ) cermet is typically used
                      as an SOFC anode material [1]. Although Ni shows good
                      catalytic activity for reformation and oxidation of
                      hydrocarbon fuels, the carbon deposition and sulfur
                      poisoning on Ni surface remarkably degrades the
                      electrochemical performance. Therefore, in this study, SOFC
                      with alternative anode materials to prevent sulfur poisoning
                      and carbon deposition were manufactured.This work is
                      financed by the Deutsche Forschungsgemeinschaft (DFG), a
                      collaborative work of Jülich research center (JÜLICH) and
                      Technical University of Munich (TUM) and is aiming for the
                      coupling of a biomass gasification system and an SOFC. The
                      new cells were manufactured by JÜLICH, and the cells have
                      been tested at TUM. As an alternative anode,
                      Ni/gadolinia-doped-ceria (GDC) anode is attempted instead of
                      Ni/YSZ due to the previous reports due to the better
                      poisoning resistivity and higher conductivity of GDC than
                      YSZ [2-3]. The new cell with Ni/GDC alternative anode was
                      manufactured by tape casting and screen printing according
                      to procedures established in JÜLICH [4]. The single cell
                      measurement result of Ni/GDC anode cell shows about 57 $\%$
                      of current density with 0.7 V than Ni/YSZ anode cell at 800
                      °C. The reason of low performance was YSZ-GDC mixed phase
                      formation and different anode microstructure according to
                      different diffusion velocity between YSZ electrolyte and GDC
                      in anode. To improve the cell performance, an additional GDC
                      layer was applied as a diffusion barrier between anode and
                      electrolyte. The modified cell shows similar anode structure
                      as standard Ni/YSZ cell with single GDC phase in anode. This
                      Ni/GDC anode cells will be tested with hydrocarbon fuel at
                      TUM. The poster summarizes the results obtained so far.},
      month         = {Jul},
      date          = {2017-07-26},
      organization  = {Europe-Korea Conference on Science and
                       Technology, Kista, Stockholm (Sweden),
                       26 Jul 2017 - 28 Jul 2017},
      subtyp        = {After Call},
      cin          = {IEK-1 / JARA-ENERGY},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
                      (SOFC-20140602) / HITEC - Helmholtz Interdisciplinary
                      Doctoral Training in Energy and Climate Research (HITEC)
                      (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602 /
                      G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/841666},
}