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@ARTICLE{Viell:875018,
      author       = {Viell, Jörn and Szekely, Noemi K. and Mangiapia, Gaetano
                      and Hövelmann, Claas and Marks, Caroline and Frielinghaus,
                      Henrich},
      title        = {{I}n operando monitoring of wood transformation during
                      pretreatment with ionic liquids},
      journal      = {Cellulose},
      volume       = {27},
      issn         = {0969-0239},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {FZJ-2020-01766},
      pages        = {4889–4907},
      year         = {2020},
      abstract     = {The conversion of lignocellulosic biomass or wood into
                      chemicals still poses a challenge due to the recalcitrance
                      of this composite-like material consisting of lignin,
                      hemicellulose and cellulose. A very high accessibility of
                      cellulose is reported by a pretreatment with ionic liquids
                      that enables high conversion rates by enzymatic hydrolysis.
                      However, the underlying mechanisms have not yet been
                      monitored in operando nor are they fully understood. We
                      monitored the transformation of wood in ionic liquids using
                      small angle neutron scattering to observe changes in the
                      material in operando and to elucidate the intrinsic effects.
                      The data analysis shows three different stages that is (i)
                      impregnation, (ii) the formation of voids and (iii)
                      increasing structure size within cellulose fibrils. This
                      consecutive mechanism coincides with macroscopic
                      disintegration of the tissue. The analysis further reveals
                      that the reduction of order in longitudinal direction along
                      the fiber axis is a prerequisite for disintegration of cells
                      along the radial direction. This understanding supports
                      further research and development of pretreatment processes
                      starting from lignocellulosic raw material.},
      cin          = {JCNS-FRM-II / MLZ / JCNS-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6G15 - FRM II / MLZ (POF3-6G15) / 6215 - Soft Matter,
                      Health and Life Sciences (POF3-621)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15 /
                      G:(DE-HGF)POF3-6215},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000527461000003},
      doi          = {10.1007/s10570-020-03119-4},
      url          = {https://juser.fz-juelich.de/record/875018},
}