Synthesis and field emission of diamond-like carbon nanorods on TiO2/Ti nanotube arrays

Chen, Jianbiao; Wang, Chengwei; Wang, Jian; Li, Yan; Guo, Ruisheng; Ma, Bao‐Hong; Zhou, Feng; Liu, Weimin

doi:10.1016/j.apsusc.2009.07.049

Cited by 15 publications

(7 citation statements)

References 31 publications

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“…The obtained TiO 2 /CNT showed fast photocurrent response and photocatalytic decomposition of organic substances. Chen and Dwivedi et al 10,17 showed synthesis of diamond like carbon (DLC) nanorods onto TiO 2 /Ti nanotubes and DLC films on nanostructured titanium.Yuan et al 11,12 proposed a direct deposition of titania nanotubes onto boron-doped diamond (BDD) films by a liquid-phase deposition z E-mail: rbogdan@eti.pg.gda.pl with ZnO nanorod arrays as the template. It was shown that BDD/TiO 2 structures have photoluminescence spectrum in a visible emission in a range of 550-750 nm, and also significant improvement of photoactivity.…”

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confidence: 99%

“…Recently, there is interest in synthesis of a different type of titania/carbon composite materials such as nanotubes, [9][10][11][12] and porous titanium carbides 13,14 which showed the enhanced effectiveness of those materials in photocatalysis, 15 electrochemical biosensing, 16 photoluminescence 17 and energy storage. 18,19 Zhao et al 9 prepared 5 mm long titanium oxide/carbon nanotube arrays by electrochemically coating the CNTs with a uniform layer of anatase TiO 2 nanoparticles.…”

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Formation of Highly Conductive Boron-Doped Diamond on TiO₂Nanotubes Composite for Supercapacitor or Energy Storage Devices

Sawczak

Sobaszek

Siuzdak

et al. 2015

J. Electrochem. Soc.

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In the present paper, we report the phenomena of the formation of the novel composite nanostructures based on TiO 2 nanotubes (NTs) over-grown by thin boron-doped diamond (BDD) film produced in Microwave Plasma Enhanced Chemical Vapor Deposition (PE MWCVD). The TiO 2 nanotube array overgrown by boron-doped diamond immersed in 0.1 M NaNO 3 can deliver high specific capacitance of 7.46 mF cm −2 . The composite electrodes were characterized by scanning electron microscopy (SEM), Raman spectroscopy, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) techniques. The depth-resolved investigations reveal that the primary anatase structure of TiO 2 NTs was partially transformed into Ti 2 O 3 and non-stoichiometric TiC fractions. The explanation for this effect is the decomposing of TiO 2 NTs in the presence of activated hydrogen and carbon in the plasma leading to enhanced dehydration of NTs and carbon bonding originating from dissociated methane. This phenomena description fits also to processes demonstrated at hydrogenated TiO 2 (H-TiO 2 ) nanotube arrays used as electrode material for supercapacitors. Nevertheless, the increase of electrochemical performance can be attributed to several reasons: (1) the unique morphology of titania nanotubes and columnar BDD with intergrain defects and valley increasing specific area of electrode and (2) presence of TiC and Ti 2 O 3 fractions introducing additional capacitance.Nowadays, the world is directed towards green energy and its efficient storage. Supercapacitors are notably useful due to the highly reversible charge storage process, long cycle-life and ability of rapid charging and discharging. 1 Presently, the supercapacitors are divided into two main types: electrical double layer capacitors (EDLC) 2 and redox supercapacitors (pseudocapacitors), followed by Faradic reactions carried out at the electrode material. 3 Moreover, they can store substantially more energy than conventional capacitors due to the very small distance of charge separation in the electrical double layer and highly extended surface area of electrode material. 4 EDLC provide far larger charging and discharging times than typical capacitors or batteries up to 10 −6 s, charge/discharge efficiency close to ∼100% and nearly infinite cycle-life. 4 The titania nanotubes provide a large specific surface area, a direct pathway of charge transport but the specific capacitances are generally limited to less than 1 mF cm −2 without intentional doping or treatment. Lu and Li et al. 5,6 reported that hydrogenated TiO 2 by heating in hydrogen atmosphere resulted in an improvement of specific capacitance up to 3.24 mF cm −2 . Moreover, Wang and Leshuk et al. 7,8 received similar hydrogenated TiO 2 under hydrogen plasma treatment.Recently, there is interest in synthesis of a different type of titania/carbon composite materials such as nanotubes, 9-12 and porous titanium carbides 13,14 which showed the enhanced effectiveness of those materials in photocatalysis, 15 electrochemical biosensing, 16 photolum...

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Formation of Highly Conductive Boron-Doped Diamond on TiO₂Nanotubes Composite for Supercapacitor or Energy Storage Devices

Sawczak

Sobaszek

Siuzdak

et al. 2015

J. Electrochem. Soc.

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“…It is clearly observed that there are two Raman peaks centered around 1370 cm −1 (D peak) and 1570 cm −1 (G peak), which are characteristic of typical DLC structure. 35,36 Ferrari and Robertson 37 have suggested that the G peak is due to the bond stretching of all pairs of sp 2 atoms in both rings and chains. The D peak is due to the breathing modes of A 1g symmetry involving phonons near the K zone boundary.…”

Section: Resultsmentioning

confidence: 99%

Effects of SiN_x interlayer on characterisation of amorphous diamond-like carbon films

Chen

Shih

Shen

et al. 2015

Materials Science and Technology

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The magnetron sputtering amorphous diamond-like carbon film is successfully deposited by SiNx interlayer approach. The scanning electron microscopy study reveals the creation of high uniform surface micrograph diamond-like carbon films with SiNx interlayer. For comparison, diamond-like carbon films with different interlayers are also grown. The Raman spectra are analyzed in order to characterize the stressed induce peak shifts of the films. The interactions of C atom with Si(100) and SiNx surface are studied by density functional theory simulation. The effects of interlayers on the films deposition and the considering deposition mechanism are discussed. It is suggested that the diamond-like carbon and SiNx bilayer structure can help to render applications in protective coatings and high quality silicon on diamond related radiation tolerance devices.

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“…Thus, the anodization technique has also been used to treat the metal titanium, and the anodic TiO 2 nanotubes were firstly prepared by Zwilling and co-workers in chromic acid electrolytes containing hydrofluoric (HF) acid (Zwilling et al , 1999a, 1999b). The typical morphology of TiO 2 nanotube is shown in Figure 9(A) (Chen et al , 2009), and the thickness is limited due to the rapid dissolution of TiO 2 in the acidic fluoride-containing electrolyte. Then neutral aqueous electrolytes containing alkaline fluorides were used as electrolytes to reduce the dissolution of TiO 2 , and increase the length of nanotube (Ghicov et al , 2005).…”

Section: The Anodization Of Other Oxidizable Metalsmentioning

confidence: 99%

The technical support of nanoart: anodization process

Shao-hua

Wang

2019

ACMM

Self Cite

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Purpose The novel structures and properties of nanostructure and nanomaterials give people perfect artistic expression of feeling and sense, then the nanoart discipline is developed and is closely related on the nanotechniques. The many achieved novel nanostructures with strong anti-corrosion prepared by the anodization have been reviewed. The paper would raise public awareness of nanotechnology, nanomaterial and their impact on our lives. Design/methodology/approach Anodization is a very effective and simple technique to form various nanostructures of metal oxide. It includes hard anodization, mild anodization and pulse anodization. Many measures have been introduced anodization process to improve the quality of formed nanostructure and enhance its properties, such as anti-corrosion. Findings The formation mechanism of anodic aluminum oxide (AAO) by using the mild, hard and pulse anodization has been discussed. The pretexture process and many other measures have been taken in mild and hard anodization to improve the regularity of pore array and greatly accelerate the formation rate of AAO. The pulse anodization has been used to prepare the multilayer Y-branched AAO film, which exhibits steady rich and vivid structure colors and gives a very good artistic expression. Furthermore, many other metal oxide nanostructures such as TiO2 and CuO have also been fabricated using the anodization techniques. Originality/value Various nanostructures of metal oxide prepared by anodization have been reviewed and are itself a perfect artwork in mesoscale. Also, many nanostructures have exhibited steady, rich and vivid structure colors and give people a very good artistic expression.

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Synthesis and field emission of diamond-like carbon nanorods on TiO2/Ti nanotube arrays

Cited by 15 publications

References 31 publications

Formation of Highly Conductive Boron-Doped Diamond on TiO₂Nanotubes Composite for Supercapacitor or Energy Storage Devices

Formation of Highly Conductive Boron-Doped Diamond on TiO₂Nanotubes Composite for Supercapacitor or Energy Storage Devices

Effects of SiN_x interlayer on characterisation of amorphous diamond-like carbon films

The technical support of nanoart: anodization process

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Synthesis and field emission of diamond-like carbon nanorods on TiO2/Ti nanotube arrays

Cited by 15 publications

References 31 publications

Formation of Highly Conductive Boron-Doped Diamond on TiO2Nanotubes Composite for Supercapacitor or Energy Storage Devices

Formation of Highly Conductive Boron-Doped Diamond on TiO2Nanotubes Composite for Supercapacitor or Energy Storage Devices

Effects of SiNx interlayer on characterisation of amorphous diamond-like carbon films

The technical support of nanoart: anodization process

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Product

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Formation of Highly Conductive Boron-Doped Diamond on TiO₂Nanotubes Composite for Supercapacitor or Energy Storage Devices

Formation of Highly Conductive Boron-Doped Diamond on TiO₂Nanotubes Composite for Supercapacitor or Energy Storage Devices

Effects of SiN_x interlayer on characterisation of amorphous diamond-like carbon films