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Self‐Organized High‐Aspect‐Ratio Nanoporous Zirconium Oxides Prepared by Electrochemical Anodization
Author(s) -
Tsuchiya Hiroaki,
Macak Jan M.,
Sieber Irina,
Schmuki Patrik
Publication year - 2005
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200400163
Subject(s) - anodizing , nanoporous , materials science , electrochemistry , zirconium , electrolyte , nanotechnology , porosity , morphology (biology) , fluoride , chemical engineering , inorganic chemistry , aluminium , chemistry , metallurgy , composite material , electrode , engineering , biology , genetics
Getting organized : Highly ordered porous ZrO 2 layers and nanotubes with very high aspect ratios (see SEM image) can be prepared by direct anodization of Zr in fluoride‐containing electrolyte. The morphology of the layers is strongly affected by the electrochemical parameters used. Under optimized conditions, the ZrO 2 layers have a cubic structure and are candidates for use in applications such as catalysis, due to their high surface area and defined geometry.