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@ARTICLE{Dixon:13715,
      author       = {Dixon, D. and Schröder, A. and Schökel, A. and Söhn, M.
                      and Manke, I. and Karjilov, N. and Sanders, T. and Loos, V.
                      and Hoogers, G. and Stolten, D. and Wippermann, K. and Roth,
                      C.},
      title        = {{D}esign of in-situ experimentation for the study of fuel
                      cells with {X}-rays and neutrons},
      journal      = {Materials testing: Materialprüfung ; materials and},
      volume       = {52},
      issn         = {0025-5300},
      address      = {München},
      publisher    = {Hanser},
      reportid     = {PreJuSER-13715},
      pages        = {725 - 735},
      year         = {2010},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {In situ neutron and X-ray measurements are of essential
                      importance for the rational design of tailor-made catalysts
                      and cell components, in particular when they can be
                      performed with spatial resolution. Neutron radiography
                      allows the investigation of the local fluid distribution in
                      direct methanol fuel cells (DMFCs) under operating
                      conditions with spatial resolutions in the order of some
                      tens of micrometers. In the through-plane mode, an overview
                      of the local water and gas distribution in the flow field
                      channels is obtained, while the in-plane mode provides
                      information on spatially and time resolved fluid
                      distribution across the cell, hydration/dehydration
                      processes and water distribution across the walls of flow
                      field channels. Combined studies of high resolution neutron
                      radiography and segmented cell measurements are especially
                      valuable, because they enable a correlation of the local
                      fluid distribution and local performance. This knowledge is
                      essential in order to optimise water management and
                      performance and to establish a homogeneous fluid, current
                      and temperature distribution in order to achieve high
                      performance and durability of DMFCs. While the neutron
                      studies focus on the cell components, additional information
                      about the catalyst performance and stability is obtained by
                      in situ X-ray absorption spectroscopy (XAS), thus nicely
                      complementing the neutron measurements. Particle size and
                      particle composition as well as degradation processes by
                      oxidation, de-alloying, and particle growth can be probed
                      with spatial resolution during operation. However, both for
                      neutron and X-ray investigations dedicated cell and
                      experiment design are crucial for the success of the
                      measurements.},
      keywords     = {J (WoSType)},
      cin          = {IEK-3 / JARA-ENERGY},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-3-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {Rationelle Energieumwandlung},
      pid          = {G:(DE-Juel1)FUEK402},
      shelfmark    = {Materials Science, Characterization $\&$ Testing},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000285023800010},
      url          = {https://juser.fz-juelich.de/record/13715},
}