Self-organized high aspect ratio porous hafnium oxide prepared by electrochemical anodization

2005 ◽  
Vol 7 (1) ◽  
pp. 49-52 ◽  
Author(s):  
Hiroaki Tsuchiya ◽  
Patrik Schmuki
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Hafnium Oxide ◽  
Electrochemical Anodization ◽  
Self Organized

Effect of Electrolyte Composition in Electrochemical Synthesis of Self-Organized Tio2 Nanotubes

2011 ◽  
Vol 364 ◽  
pp. 298-302 ◽  
Author(s):  
Chin Lim Ying ◽  
Zulkarnain Zainal ◽  
Mohd Zobir Hussein ◽  
Weetee Tan
Keyword(s):  
Heat Treatment ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Treatment Condition ◽  
Aqueous Electrolyte ◽  
Heat Treatment Condition ◽  
Electrolyte Composition ◽  
Electrochemical Anodization ◽  
Self Organized ◽  
Neutral Electrolyte

In this paper, self-organized TiO2 nanotubes (TNT) were synthesized by electrochemical anodization in different electrolytes comprising acidic fluorinated aqueous electrolyte and organic neutral electrolyte. The structural, morphological and composition of TNT were characterized with XRD, FESEM and EDX. Compared with aqueous electrolyte, much smoother tubes with an increase of over 30 times in nanotube length can be obtained by anodization in organic electrolyte. Besides the high aspect ratio, variation of nanotube length within the array could be observed. Interestingly, under the same heat treatment condition, choice of electrolyte has an influence on the crystalline structure of TNT.

Self-Organized High-Aspect-Ratio Nanoporous Zirconium Oxides Prepared by Electrochemical Anodization

Small ◽  
2005 ◽  
Vol 1 (7) ◽  
pp. 722-725 ◽  
Author(s):  
Hiroaki Tsuchiya ◽  
Jan M. Macak ◽  
Irina Sieber ◽  
Patrik Schmuki
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Electrochemical Anodization ◽  
Zirconium Oxides ◽  
Self Organized

Formation of GaN Self-Organized Nanotips by Nanomasking Effect

2001 ◽  
Vol 707 ◽  
Author(s):  
Harumasa Yoshida ◽  
Tatsuhiro Urushido ◽  
Hideto Miyake ◽  
Kazumasa Hiramtsu
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Aspect Ratio ◽  
Formation Mechanism ◽  
High Aspect Ratio ◽  
Photoelectron Spectroscopy ◽  
Nanometer Scale ◽  
Xps Analysis ◽  
X Ray ◽  
Self Organized

ABSTRACTWe have successfully fabricated self-organized GaN nanotips by reactive ion etching using chlorine plasma, and have revealed the formation mechanism. Nanotips with a high density and a high aspect ratio have been formed after the etching. We deduce from X-ray photoelectron spectroscopy (XPS) analysis that the nanotip formation is attributed to nanometer-scale masks of SiO2 on GaN. The structures calculated by Monte Carlo simulation of our formation mechanism are very similar to the experimental nanotip structures.

Self-organized micropatterns of high aspect ratio polymer nanofibers by wetting of nanopores

2008 ◽  
Vol 46 (12) ◽  
pp. 1280-1289 ◽  
Author(s):  
Jie Kong ◽  
Kai-Leung Yung ◽  
Yan Xu ◽  
Lan He ◽  
K. H. Lau ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Polymer Nanofibers ◽  
Self Organized

Formation of GaN Self-Organized Nanotips by Nanomasking Effect

2001 ◽  
Vol 693 ◽  
Author(s):  
Harumasa Yoshida ◽  
Tatsuhiro Urushido ◽  
Hideto Miyake ◽  
Kazumasa Hiramtsu
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Aspect Ratio ◽  
Formation Mechanism ◽  
High Aspect Ratio ◽  
Photoelectron Spectroscopy ◽  
Nanometer Scale ◽  
Xps Analysis ◽  
X Ray ◽  
Self Organized

AbstractWe have successfully fabricated self-organized GaN nanotips by reactive ion etching using chlorine plasma, and have revealed the formation mechanism. Nanotips with a high density and a high aspect ratio have been formed after the etching. We deduce from X-ray photoelectron spectroscopy (XPS) analysis that the nanotip formation is attributed to nanometer-scale masks of SiO2 on GaN. The structures calculated by Monte Carlo simulation of our formation mechanism are very similar to the experimental nanotip structures.

Controlled Growth and Application in Lithium and Sodium Batteries of High-Aspect-Ratio, Self-Organized Titania Nanotubes

2013 ◽  
Vol 160 (9) ◽  
pp. A1390-A1398 ◽  
Author(s):  
José R. González ◽  
Ricardo Alcántara ◽  
Gregorio F. Ortiz ◽  
Francisco Nacimiento ◽  
José L. Tirado
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Titania Nanotubes ◽  
Controlled Growth ◽  
Self Organized ◽  
Sodium Batteries

Fabrication of high aspect ratio and open-ended TiO2 nanotube photocatalytic arrays through electrochemical anodization

AIChE Journal ◽  
2015 ◽  
Vol 62 (2) ◽  
pp. 415-420 ◽  
Author(s):  
Roong Jien Wong ◽  
Sanly Liu ◽  
Yun Hau Ng ◽  
Rose Amal
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Tio2 Nanotube ◽  
Electrochemical Anodization

Self-Organized and High Aspect Ratio Nanoporous Zinc Oxide Prepared by Anodization

2019 ◽  
Vol 13 (3) ◽  
pp. 183-189 ◽  
Author(s):  
Sachiko Ono ◽  
Yuta Kobayashi ◽  
Hidetaka Asoh
Keyword(s):  
Zinc Oxide ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Self Organized
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