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@ARTICLE{vanderDonk:259,
      author       = {van der Donk, G. and Serra, J. M. and Marler, B. and
                      Meulenberg, W. A. and Gies, H.},
      title        = {{F}ormation of clathrasil layers by secondary growth of
                      {DOH}-type nuclei for gas separation applications},
      journal      = {Microporous and mesoporous materials},
      volume       = {115},
      issn         = {1387-1811},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {PreJuSER-259},
      pages        = {3 - 10},
      year         = {2008},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Doclecasil 1 H (D1H) possessing the zeolite framework type
                      DOH is one of the all-silica zeolites and therefore offers
                      high chemical, thermal and hydrothermal stability. D1H is a
                      6-ring clathrasil with small pore apertures of about 3 A and
                      may be able to selectively transport hydrogen or helium
                      while rejecting other gasses such as CO2. These properties
                      make D1H an interesting microporous membrane material for
                      pre-combustion applications. Moreover, it has been shown
                      that D1H crystals can be prepared practically structure
                      directing agent-free.Prior to the attempt to prepare
                      complete layers of D1H crystals, the general crystallisation
                      behaviour of D1H was investigated. To obtain optimal
                      crystallisation conditions a large number of synthesis
                      experiments were performed aiming, in particular, at the
                      preparation of pure material consisting of small and very
                      thin crystals with a reduced number of organic molecules
                      occupying the cage-like voids of the structure. The
                      syntheses were performed in the system
                      aminoadamantane/silica/ethylenediamine or ammonia/water and
                      by systematically varying synthesis parameters like
                      temperature, gel composition, aging of the synthesis
                      mixture, seeding and the type of agitation during the
                      synthesis run. In some additional runs aminoadamantane was
                      replaced by other structure directing agents.Moreover, the
                      removal the organics filling the zeolite cages was studied
                      by different approaches, including calcination at
                      atmospheric pressure and by applying high pressure cycling
                      and calcination of ball milled crystals. The obtained
                      materials were then characterized by powder XRD, SEM,
                      thermal analysis, chemical analysis and optical microscopy.
                      Knowing favourable synthesis conditions, D1H layers have
                      been prepared on a alpha-Al2O3 support by using secondary
                      growth of small D1H nuclei. (C) 2008 Elsevier Inc. All
                      rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {IEF-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB809},
      pnm          = {Rationelle Energieumwandlung},
      pid          = {G:(DE-Juel1)FUEK402},
      shelfmark    = {Chemistry, Applied / Chemistry, Physical / Nanoscience $\&$
                      Nanotechnology / Materials Science, Multidisciplinary},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000259135800002},
      doi          = {10.1016/j.micromeso.2007.11.052},
      url          = {https://juser.fz-juelich.de/record/259},
}