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@ARTICLE{Gehring:864208,
      author       = {Gehring, Markus and Tempel, Hermann and Merlen, Alexandre
                      and Schierholz, Roland and Eichel, Rüdiger-A. and Kungl,
                      Hans},
      title        = {{C}arbonisation temperature dependence of electrochemical
                      activity of nitrogen-doped carbon fibres from
                      electrospinning as air-cathodes for aqueous-alkaline
                      metal–air batteries},
      journal      = {RSC Advances},
      volume       = {9},
      number       = {47},
      issn         = {2046-2069},
      address      = {London},
      publisher    = {RSC Publishing},
      reportid     = {FZJ-2019-04046},
      pages        = {27231 - 27241},
      year         = {2019},
      abstract     = {Poly-acrylonitrile (PAN)-derived carbon fibres were
                      characterised as air electrode frameworks for
                      aqueous-alkaline metal–air batteries, focussing on the
                      influence of the carbonisation temperature on the structure
                      and electrochemical properties. Elemental composition,
                      (atomic) structure, electrical conductivity, and
                      electrochemical performance related to the oxygen reduction
                      were investigated for electrodes carbonised in the range
                      from 300 °C to 1400 °C. Chemical and structural properties
                      were analysed using elemental analysis, XPS, SEM, and Raman
                      spectroscopy; electrical conductivities of the fibre
                      networks were examined by four-point probe measurements.
                      Electrochemical properties were evaluated using linear sweep
                      voltammetry in 6 M KOH by the open circuit potentials, the
                      cathodic current densities at given overpotentials, and
                      required overpotentials at given current densities. The
                      highest current density was obtained from fibres carbonised
                      at 850 °C. The connection between the fibre characteristics
                      and electrochemical properties are discussed, highlighting
                      the importance of the nitrogen bonding state. The results
                      provide a base for thedevelopment of high performance air
                      electrodes.},
      cin          = {IEK-9},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {131 - Electrochemical Storage (POF3-131) / HITEC -
                      Helmholtz Interdisciplinary Doctoral Training in Energy and
                      Climate Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-131 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000487054800011},
      doi          = {10.1039/C9RA03805A},
      url          = {https://juser.fz-juelich.de/record/864208},
}