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An electron microscopy three‐dimensional characterization of titania nanotubes
Author(s) -
Andrzejczuk Mariusz,
Rasiński Marcin,
Roguska Agata,
Pisarek Marcin,
Lewandowska Malgorzata
Publication year - 2019
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.23093
Subject(s) - materials science , anatase , porosity , electron tomography , nanostructure , amorphous solid , focused ion beam , characterization (materials science) , scanning electron microscope , electron microscope , nanotechnology , resolution (logic) , chemical engineering , ion , crystallography , composite material , optics , chemistry , scanning transmission electron microscopy , biochemistry , physics , organic chemistry , engineering , photocatalysis , artificial intelligence , computer science , catalysis
To characterize complex, three‐dimensional nanostructures, modern microscopy techniques are needed, such as electron tomography and focused ion beam (FIB) sectioning. The aim of this study was to apply these two techniques to characterize TiO 2 nanotubes in terms of their size, shape, volume, porosity, geometric surface area, and specific surface area (SSA). For these experiments, titania nanotubes were fabricated by means of the electrochemical oxidation of titanium at a voltage of 20 V for 2 hr followed by heat treatment at 450°C for 3 hr to change the amorphous structure into a crystalline anatase structure. The quantitative data obtained from the FIB and electron tomography reconstructions show a high similarity in porosity and some differences in SSA. These might be the result of differences in resolution between the two reconstruction techniques.