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@ARTICLE{Khodan:916426,
      author       = {Khodan, Anatole and Kanaev, Andrei and Esaulkov, Mikhail
                      and Kiselev, Mikhail and Nadtochenko, Victor},
      title        = {{E}ffects of {S}urface {C}hemical {M}odification by
                      {E}thoxysilanes on the {E}volution of 3{D} {S}tructure and
                      {C}omposition of {P}orous {M}onoliths {C}onsisting of
                      {A}lumina {H}ydroxide {N}anofibrils in the {T}emperature
                      {R}ange 25–1700 °{C}},
      journal      = {Nanomaterials},
      volume       = {12},
      number       = {20},
      issn         = {2079-4991},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2022-06226},
      pages        = {3591 -},
      year         = {2022},
      abstract     = {Bulk nanomaterials with an open porosity offer exciting
                      prospects for creating new functional materials for various
                      applications in photonics, IR-THz optics, metamaterials,
                      heterogeneous photocatalysis, monitoring and cleaning toxic
                      impurities in the environment. However, their availability
                      is limited by the complexity of controlling the process of
                      synthesis of bulk 3D nanostructures with desired
                      physicochemical and functional properties. In this paper, we
                      performed a detailed analysis of influence of a silica
                      monolayer chemically deposited on the surface of a
                      monolithic ultraporous nanostructure, consisting of a 3D
                      nanofibril network of aluminum oxyhydroxide, on the
                      evolution of structure and morphology, chemical composition
                      and phase transformations after heat treatment in the
                      temperature range of 20−1700 °C. The experimental results
                      are interpreted in the framework of a physical model taking
                      into account surface and volume mass transport and sintering
                      kinetics of nanofibrils, which made it possible to estimate
                      activation energies of the surface diffusion and sintering
                      processes. It is shown that the presence of a surface silica
                      monolayer on the surface affects the kinetics of aluminum
                      oxyhydroxide dehydration and inhibits diffusion mass
                      transfer and structural phase transformations. As a result,
                      the overall evolution of the 3D nanostructure significantly
                      differs from that of nanomaterials without surface chemical
                      modification.},
      cin          = {JCNS-4 / JCNS-FRM-II / MLZ},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-4-20201012 /
                      I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
                      (POF4-6G4)},
      pid          = {G:(DE-HGF)POF4-6G4},
      experiment   = {EXP:(DE-MLZ)KWS3-20140101 / EXP:(DE-MLZ)KWS2-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36296780},
      UT           = {WOS:000875933400001},
      doi          = {10.3390/nano12203591},
      url          = {https://juser.fz-juelich.de/record/916426},
}