Facile method to synthesize a carbon layer embedded into titanium dioxide nanotubes with metal oxide decoration for electrochemical applications

Abstract

We report a facile and economical method to form a carbon layer embedded into self-organized titanium dioxide nanotubes (C/TiO2 NTs) with a double-walled morphology using a one-step pyrolysis method.

Three-dimensional nanotube electrode arrays for hierarchical tubular structured high-performance pseudocapacitors

“…In this regard, fabrication of nanostructured electrodes has been widely explored, mainly due to the fact that they have a large electrode surface area and thus can significantly improve overall device capacitance. [9][10][11][12][13][14][15][16][17][18] Among different nanostructures, ordered three-dimensional (3-D) tubular arrays are regarded as one of the most promising structures as electrochemical electrodes, [19][20][21][22][23][24][25][26][27][28][29][30][31][32] mainly due to the facts that (i) this structure has a large internal surface area for more pseudo-capacitive material deposition; 18,33 (ii) an ordered tubular structure with a uniform pore size can help to improve accessibility of the electrolyte to electrodes and thus favors fast ion diffusion and electron transport; 33,34 (iii) pseudocapacitive material deposited on 3-D nanostructures can withstand more volumetric expansion during the electrochemical reaction as 3-D structures can help to release mechanical stress. 33,34 These features bring in synergic improvement of electrode performance based on the combination of effective nanostructures and pseudocapacitive materials.…”

“…Meanwhile, bottom-up approaches in principle are much more cost-effective. Among various types of bottom-up approaches, anodization of valve metals, including aluminum (Al), titanium (Ti), etc., can lead to the formation of highly packed oxide nanotubular structures via self-organizing mechanisms, 25,35,36 and this approach has been proven highly scalable with cost-effectiveness. 37 In this work, anodic aluminum oxide (AAO) membranes with highly ordered 3-D nanotube arrays were fabricated by a nanoimprint process in conjunction with electrochemical anodization.…”

Deployment of MIL-88B(Fe)/TiO2 Nanotube-Supported Ti Wires as Reusable Electrochemiluminescence Microelectrodes for Noninvasive Sensing of H2O2 from Single Cancer Cells

“…The functionalization of the TiNT surface with poly(sodium 4-styrenesulfonate) (PSS) was carried out according to a previous study with some modification. 32 In brief, the TiNT/Ti ME was first immersed in 5 wt % PSS solution for 2 h at room temperature, followed by rinsing with deionized (DI) water. The resulting PSS−TiNTs/Ti ME was then incubated in 0.1 M FeCl 3 for 3 h, washed with DI water, and dried under N 2 flow.…”

Quantum dot sensitized electrospun mesoporous titanium dioxide hollow nanofibers for photocatalytic applications

“…Such modications of TiO 2 enhance its photocatalytic property due to either charge separation or increasing solar absorption or both. TiO 2 has been prepared by different methodologies such as hydrothermal, 28 electrospinning, 9,29 electrochemical, 30 etc. Various shaped nanostructures of TiO 2 have been developed such as nanoparticles, 31 nanooctahedra, 32 nanosheets, 33 hollow spheres, 34 nanobers, and nanotubes, 4 etc.…”