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@ARTICLE{Bahadur:868315,
      author       = {Bahadur, Jitendra and Das, Avik and Prakash, Jyoti and
                      Singh, Pankaj and Khan, Arshad and Sen, Debasis},
      title        = {{R}ole of trapped water on electroresponsive characteristic
                      of silica-graphene oxide composite microspheres},
      journal      = {Journal of applied physics},
      volume       = {126},
      number       = {20},
      issn         = {1089-7550},
      address      = {Melville, NY},
      publisher    = {American Inst. of Physics},
      reportid     = {FZJ-2019-06865},
      pages        = {204301 -},
      year         = {2019},
      abstract     = {Electroresponsive microspheres containing nanosilica and
                      graphene oxide (GO) sheets have been achieved by the
                      one-step evaporation induced assembly of mixed colloids
                      using spray drying. The interlocking of the nanostructured
                      constituents by the attractive capillary force during drying
                      of dispersion droplets results in the formation of powder
                      grains with correlated nanoparticles and nanosheets. The
                      presence of GO sheets arrests the buckling of the drying
                      droplets during evaporative assembly and results in
                      well-defined spherical shaped grains. Interestingly, this
                      approach of random jamming in colloidal droplets is capable
                      of preventing the spontaneous stacking of the GO sheets and,
                      therefore, facilitates a way to confine the atomic-thick GO
                      sheet in the solid matrix. A plausible mechanism for the
                      formation of silica-GO binary composite microspheres is
                      elucidated. Microspheres dispersed in insulating oil show
                      interesting electroresponsive characteristics where the
                      microspheres form a chainlike percolation path under the
                      applied electric field. It has been established that the
                      adsorbed water in the microspheres plays a profound role as
                      far its electroresponsive behavior is concerned. GO sheets
                      in the microspheres allow for tuning of electroresponse
                      strength owing to the increased interaction of water
                      molecules to the oxygen-containing functional groups
                      anchored on the GO sheets.},
      cin          = {JCNS-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS)
                      (POF3-623)},
      pid          = {G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)KWS3-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000504006000015},
      doi          = {10.1063/1.5124910},
      url          = {https://juser.fz-juelich.de/record/868315},
}