Measuring location, size, distribution, and loading of NiO crystallites in individual SBA-15 pores by electron tomography

Heiner Friedrich, Jelle R.A. Sietsma, Petra E. De Jongh, Arie J. Verkleij, Krijn P. De Jong

Research output: Contribution to journalArticleAcademicpeer-review

81 Citations (Scopus)

Abstract

By the combination of electron tomography with image segmentation, the properties of 299 NiO crystallites contained in 6 SBA-15 pores were studied. A statistical analysis of the particle size showed that crystallites between 2 and 6 nm were present with a distribution maximum at 3 and 4 nm, for the number-weighted and volume-weighted curves, respectively. Interparticle distances between nearest neighbors were 1-3 nm with very few isolated crystallites. In the examined pores, a local loading twice the applied average of 24 wt % NiO was found. This suggests that a very high local loading combined with a high dispersion is achievable.

Original languageEnglish
Pages (from-to)10249-10254
Number of pages6
JournalJournal of the American Chemical Society
Volume129
Issue number33
DOIs
Publication statusPublished - 22 Aug 2007
Externally publishedYes

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