Structured hierarchical zeolites overgrown on expanded obsidian or perlite.

Автор(и)

  • M. M. Kurmach L.V. Pisarzhevsky Institute of Physical Chemistry of the NAS of Ukraine, 31 Prosp. Nauky, 03028 Kyiv, Ukraine
  • K. M. Konysheva L.V. Pisarzhevsky Institute of Physical Chemistry of the NAS of Ukraine, 31 Prosp. Nauky, 03028 Kyiv, Ukraine
  • P. S. Yaremov L.V. Pisarzhevsky Institute of Physical Chemistry of the NAS of Ukraine, 31 Prosp. Nauky, 03028 Kyiv, Ukraine
  • O. V. Shvets L.V. Pisarzhevsky Institute of Physical Chemistry of the NAS of Ukraine, 31 Prosp. Nauky, 03028 Kyiv, Ukraine

Анотація

Hierarchical zeolites are materials in which orderly combined two or more types of pore systems, for example zeolitic micropores and transport mesopores. The latter facilitate the transport of molecules to active centers and reduce diffusion limitations, what allow to expect high activity of such materials in different acid-base and redox process including “bulk” (with diameter more than 1 nm) molecules. At the same time, these materials are quite expensive for use in industry. Synthesis of hierarchical zeolites overgrown on obsidian or perlite could significantly reduce the value of such materials.

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