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Direct Measurement of Size, Three‐Dimensional Shape, and Specific Surface Area of Anatase Nanocrystals
Author(s) -
Feldhoff Armin,
Mendive Cecilia,
Bredow Thomas,
Bahnemann Detlef
Publication year - 2007
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200700084
Subject(s) - nanocrystal , anatase , transmission electron microscopy , surface (topology) , crystal (programming language) , nanotechnology , materials science , crystal structure , crystallography , chemical physics , chemistry , computer science , mathematics , geometry , photocatalysis , organic chemistry , catalysis , programming language
Little is different : The specific surface areas of individual crystal facets on anatase nanocrystals (see picture) are estimated quantitatively by the combination of transmission electron microscope measurements with a Wulff‐type construction of the three‐dimensional shape. The results demonstrate that the crystal facets that are most abundant for macroscopic crystals are not necessarily those that predominate in nanocrystals.