A continuous electron density approach in rietveld analysis for structure investigations of the mesoporous silicate materials : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2001

Аннотация: A procedure of the structure factor simulation from a continuous electron density representation in combination with the full-profile structure refinement (Rietveld technique) was developed and applied to structural characterization of pure siliceous mesoporous mesophase materials C16-SiO2-MMM of the MCM-41 type. An analytical funcПоказать полностьюtion was exploited to simulate the continuous electron density. The function arguments were used as refinable structure parameters. The technique allows both the least-squares refinement of structural parameters using the fullprofile fitting and the E-map calculations providing additional information on the structure details. Determined pore sizes were in good agreement with those obtained by independent absorption-based method. The pore shape was found to be close to hexagonal geometry.

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Издание

Журнал: Advances in X-Ray Analysis

Выпуск журнала: Т. 44

Номера страниц: 110-115

ISSN журнала: 10970002

Персоны

  • Solovyov L.A. (Institute of Chemistry and Chemical Engineering, K.Marx str., 42, Krasnoyarsk 660049, Russia?)
  • Kirik S.D. (Institute of Chemistry and Chemical Engineering, K.Marx str., 42, Krasnoyarsk 660049, Russia?)
  • Shmakov A.N. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
  • Romannikov V.N. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)

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