Functionalization of Carbon Nanotubes:  Methods, Mechanisms and Technological Realization

Dyachkova, T. P.; Рухов, А. В.; Ткачев, А. Г.; Туголуков, Е. Н.

doi:10.17277/amt.2018.02.pp.018-041

Cited by 18 publications

(22 citation statements)

References 37 publications

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“…Functionalization may be performed by chemical oxidative processes when CNTs are dispersed in water and organic solvents, by other chemical and physical modifications, or by separating metallic SWNT and semiconductive SWNT [173,174].…”

Section: Carbon Nanotubes-modified Electrodesmentioning

confidence: 99%

Carbonaceous Nanomaterials Employed in the Development of Electrochemical Sensors Based on Screen-Printing Technique—A Review

Bounegru

Apetrei

2020

Catalysts

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This paper aims to revise research on carbonaceous nanomaterials used in developing sensors. In general, nanomaterials are known to be useful in developing high-performance sensors due to their unique physical and chemical properties. Thus, descriptions were made for various structural features, properties, and manner of functionalization of carbon-based nanomaterials used in electrochemical sensors. Of the commonly used technologies in manufacturing electrochemical sensors, the screen-printing technique was described, highlighting the advantages of this type of device. In addition, an analysis was performed in point of the various applications of carbon-based nanomaterial sensors to detect analytes of interest in different sample types.

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Section: Carbon Nanotubes-modified Electrodesmentioning

confidence: 99%

Carbonaceous Nanomaterials Employed in the Development of Electrochemical Sensors Based on Screen-Printing Technique—A Review

Bounegru

Apetrei

2020

Catalysts

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“…There are technologies that allow you to weave nanotubes in the form of filaments of unlimited length. They may look like one or several tubular rolled graphene planes with a hemispherical head at the end, and considered as part of a fullerene molecule [20][21][22][23][24][25]. At present, the mechanism of fullerene formation has not been established.…”

Section: Main Partmentioning

confidence: 99%

Study of the properties of nanomaterials

Kiyamov¹,

Vachitova²,

Saracheva³

et al. 2020

Nanobuild

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To improve physical and mechanical properties of pavements new materials with nanomodified additives are being actively developed. The authors are investigating the properties of road petroleum bitumen with nanomaterial Taunit. At the initial stage, oil bitumen was heated to 100 о C. Then carbon nanomaterial «Taunit» was added. After that, the mixture was stirred in an ultrasonic homogenizer until even distribution of the carbon nanomaterial in the total volume. The process of cooling of the final structure was carried out until the end of the crystallization process. Then, the specimens are exposed to tension and strength tests with a constant rate of deformation or loading until the moment of rupture on the testing machines. Mixing with other components of asphalt concrete in the standard mode follows the nanomodification of the bituminous mixture. Under increased temperatures the bitumen mixture keeps properties of an effective binder. It was revealed that the modified carbon bitumen has good thermal properties, namely, it has a higher softening temperature (∆t is in the range from 6 to 10ºС). The indicator, which indirectly characterizes the degree of hardness of bitumen solutions, is within the limits of GOST standards, decreases by 15-20%.

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“…These facts complicate their functional use, both in pure form and as a dispersed phase in a composite, since this causes the electrophysical, mechanical and hydrophobic properties of the CNT to deteriorate. The authors have written a number of papers on possible options for cleaning and modification of CNTs [24,25].…”

Section: Functionalization Of Cnt With Nitric Acidmentioning

confidence: 99%

“…To obtain and study hydrophobic coatings, the authors of [25] functionalization of the CNTs with nitric acid (НNO3) at a temperature of 120C, followed by decantation and drying, as described in [25]. The processing time in the liquid phase of the acidic medium was 10, 30, 40, 60, 90, 180, 240 minutes, respectively.…”

Section: Functionalization Of Cnt With Nitric Acidmentioning

confidence: 99%

Simple Method of Creating Hydrophobic Surfaces Based on Modified MW-CNTs

Есеев¹,

Goshev²,

Kapustin³

2019

Preprint

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The creation of hydrophobic, antifreeze and self-cleaning coatings is currently being pursued by many industrial sectors. The potential applications include the production of liquid and gas separators and filters, new materials, optical and microelectronic devices, and textiles and clothing. These coatings will also have wide application in the construction and automobile industries, shipping, and energy and agricultural sectors. The article proposes a simple approach to the creation of superhydrophobic and antifreeze coatings, by applying powder from multi-walled carbon nanotubes (MW-CNTs) to the sample surface. This method enables combination of the necessary factors: low surface energy, micro–nano-roughness and hierarchical multi-scale. The authors investigated the dependence of the wetting angle of such a surface on the time, type and degree of functionalization. The electrophysical properties of modified MW-CNTs were studied over wide frequency and temperature ranges. This method of obtaining hydrophobic coatings differs from currently available methods in that it is simpler to prepare, is of lower cost and has less environmental impact. The proposed approach can be used to create superhydrophobic coatings that have the additional function of removing static charge and therefore reducing surface heating, and which can be used in the field of energetics for protection against the freezing of wind turbine blades and aircraft surfaces.

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Functionalization of Carbon Nanotubes: Methods, Mechanisms and Technological Realization

Cited by 18 publications

References 37 publications

Carbonaceous Nanomaterials Employed in the Development of Electrochemical Sensors Based on Screen-Printing Technique—A Review

Carbonaceous Nanomaterials Employed in the Development of Electrochemical Sensors Based on Screen-Printing Technique—A Review

Study of the properties of nanomaterials

Simple Method of Creating Hydrophobic Surfaces Based on Modified MW-CNTs

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