Split TiO2 nanotubes − Evidence of oxygen evolution during Ti anodization

Huang, Wenqiang; Xu, Hai; Zhang, Ying; Dan, Yuxin; Zhou, Qinyi; Zhang, Jiajun; Zhu, Xufei

doi:10.1016/j.elecom.2019.106532

Cited by 45 publications

(34 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was proposed that the presence of these species promotes the decomposition of Al(OH) 3 , pointing to the similarity observed during the anodization of titanium [ 127 ]. An important discovery that provides a new insight has been brought due to the work reported by group of Zhu [ 126 , 128 ]. For the first time it was possible to observe cavities between double walls of nanotubes, strongly supporting the oxygen bubble formation theory.…”

Section: Nanoporous Anodic Alumina (Naa): Definition and Formationmentioning

confidence: 99%

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

2021

View full text Add to dashboard Cite

The development of aluminum anodization technology features many stages. With the story stretching for almost a century, rather straightforward—from current perspective—technology, raised into an iconic nanofabrication technique. The intrinsic properties of alumina porous structures constitute the vast utility in distinct fields. Nanoporous anodic alumina can be a starting point for: Templates, photonic structures, membranes, drug delivery platforms or nanoparticles, and more. Current state of the art would not be possible without decades of consecutive findings, during which, step by step, the technique was more understood. This review aims at providing an update regarding recent discoveries—improvements in the fabrication technology, a deeper understanding of the process, and a practical application of the material—providing a narrative supported with a proper background.

show abstract

Section: Nanoporous Anodic Alumina (Naa): Definition and Formationmentioning

confidence: 99%

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

2021

View full text Add to dashboard Cite

show abstract

“…In the stage (Ⅱ), J total starts to climb because of the increase of the electronic current and oxygen bubbles start to release between the interface of the anion contaminated layer and the barrier oxide layer. 16,63 Under the pressure of the anion contaminated layer and the electrolyte, oxygen bubbles are not able to release from the surface at once. Thus, oxygen bubbles serve as a mold.…”

Section: Nanoscale Advances Accepted Manuscriptmentioning

confidence: 99%

“…15 Therefore, the fluoride ions and water play a crucial role in the formation of nanotubes or porous structure. 15 But Huang et al 16 obtained both the nanotube structure and the porous structure of TiO 2 by anodizing in the exact same NH 4 F electrolyte. 16 Secondly, the formation mechanisms of the popular porous anodic oxides are all developed from the field-assisted dissolution theory of porous anodic alumina.…”

Section: Introductionmentioning

confidence: 99%

“…15 But Huang et al 16 obtained both the nanotube structure and the porous structure of TiO 2 by anodizing in the exact same NH 4 F electrolyte. 16 Secondly, the formation mechanisms of the popular porous anodic oxides are all developed from the field-assisted dissolution theory of porous anodic alumina. For example, the field-assisted reaction of porous anodic alumina is Al 2 O 3 + 6H + → 2Al 3+ + 3H 2 O.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evidence of oxygen bubbles forming nanotube embryos in porous anodic oxides

Gong

et al. 2021

Nanoscale Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In a fluoride salt solution, the chemical dissolution rate of TiO 2 reduced and 24 μm-long nanotubes can be obtained [ 23 ]. F − ions are more aggressive in aqueous solutions than in organic media; typically side walls of the nanotubes appear distorted in water, while they grow more smoothly in organic solutions [ 26 ]. The lower water content in organic electrolytes increases the growth rate of the nanotubes [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Highly Ordered TiO2 Nanotube Arrays with Engineered Electrochemical Energy Storage Performances

2021

View full text Add to dashboard Cite

Nanoscale engineering of regular structured materials is immensely demanded in various scientific areas. In this work, vertically oriented TiO2 nanotube arrays were grown by self-organizing electrochemical anodization. The effects of different fluoride ion concentrations (0.2 and 0.5 wt% NH4F) and different anodization times (2, 5, 10 and 20 h) on the morphology of nanotubes were systematically studied in an organic electrolyte (glycol). The growth mechanisms of amorphous and anatase TiO2 nanotubes were also studied. Under optimized conditions, we obtained TiO2 nanotubes with tube diameters of 70–160 nm and tube lengths of 6.5–45 μm. Serving as free-standing and binder-free electrodes, the kinetic, capacity, and stability performances of TiO2 nanotubes were tested as lithium-ion battery anodes. This work provides a facile strategy for constructing self-organized materials with optimized functionalities for applications.

show abstract

Split TiO2 nanotubes − Evidence of oxygen evolution during Ti anodization

Cited by 45 publications

References 44 publications

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

Recent Advances in Nanoporous Anodic Alumina: Principles, Engineering, and Applications

Evidence of oxygen bubbles forming nanotube embryos in porous anodic oxides

Highly Ordered TiO2 Nanotube Arrays with Engineered Electrochemical Energy Storage Performances

Contact Info

Product

Resources

About