A Comprehensive Review on CNTs and CNT-Reinforced Composites: Syntheses, Characteristics and Applications

Soni, Sourabh Kumar; Thomas, Benedict; Kar, Vishesh Ranjan

doi:10.1016/j.mtcomm.2020.101546

Cited by 165 publications

(89 citation statements)

References 289 publications

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“…More specifically, CNTs allow for increasing the electrical conductivity of the nanocomposite by several orders of magnitude by adding low filler contents (below 1 wt.%) [ 9 ]. There are different kinds of CNTs depending on their morphology, which are commonly classified as single-walled (SWCNTs), double-walled (DWCNTs) and multi-walled carbon nanotubes (MWCNTs) [ 10 ]. CNTs’ morphology could influence the electromechanical behavior of nanocomposites since they present different aspect ratios, which directly affect the electrically conductive networks created by CNTs, so the conductive mechanism may vary [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Complex Geometry Strain Sensors Based on 3D Printed Nanocomposites: Spring, Three-Column Device and Footstep-Sensing Platform

et al. 2021

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Electromechanical sensing devices, based on resins doped with carbon nanotubes, were developed by digital light processing (DLP) 3D printing technology in order to increase design freedom and identify new future and innovative applications. The analysis of electromechanical properties was carried out on specific sensors manufactured by DLP 3D printing technology with complex geometries: a spring, a three-column device and a footstep-sensing platform based on the three-column device. All of them show a great sensitivity of the measured electrical resistance to the applied load and high cyclic reproducibility, demonstrating their versatility and applicability to be implemented in numerous items in our daily lives or in industrial devices. Different types of carbon nanotubes—single-walled, double-walled and multi-walled CNTs (SWCNTs, DWCNTs, MWCNTs)—were used to evaluate the effect of their morphology on electrical and electromechanical performance. SWCNT- and DWCNT-doped nanocomposites presented a higher Tg compared with MWCNT-doped nanocomposites due to a lower UV light shielding effect. This phenomenon also justifies the decrease of nanocomposite Tg with the increase of CNT content in every case. The electromechanical analysis reveals that SWCNT- and DWCNT-doped nanocomposites show a higher electromechanical performance than nanocomposites doped with MWCNTs, with a slight increment of strain sensitivity in tensile conditions, but also a significant strain sensitivity gain at bending conditions.

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Section: Introductionmentioning

confidence: 99%

Complex Geometry Strain Sensors Based on 3D Printed Nanocomposites: Spring, Three-Column Device and Footstep-Sensing Platform

et al. 2021

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“…[ 153,155 ] However, proper dispersion of CNTs on systems has shown to be a challenge since it tends to entangle and agglomerate together even in small concentrations (less than 1 wt%) due to strong Van der Waals forces. [ 153,154,156 ] Zhang, Y. et al. [ 157 ] examined how various concentrations of CNTs impacts the printability, microwave absorption and electromagnetic properties of his samples.…”

Section: Fillers In Bioresinsmentioning

confidence: 99%

Nanomaterials for 3D Printing of Polymers via Stereolithography: Concept, Technologies, and Applications

Rosa

Rosace

2021

Macro Materials & Eng

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Stereolithography (SLA) is an additive manufacturing method with one of the highest accuracies (down to 100 nm) of all solid freeform techniques and has been used in various areas, such as medicine, automotive, aerospace, electronics, and others. However, most resins available nowadays are derived from petroleum. Its toxicity, low biocompatibility, and growing environmental concerns are limiting its application. This review discusses the development of biobased and biocompatible materials for different SLA processes as well as the usage of nanocomposites to increase their applicability. A comprehensive overview of the SLA technologies, photopolymerization chemistry, and resin properties are also provided. Finally, various examples using different types of materials are explored, to show the current and future capabilities of the SLA technique.

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“…CNTs are on the cutting edge of nano science research and finding enormous applications in energy storage devices. Excellent adsorption capabilities, high surface area, better electrical conductivity, high mechanical strength, corrosion resistance, high aspect ratio and good chemical and physical properties of CNTs have grabbed tremendous attention worldwide [14,15]. Their charge transfer properties make them favorable for energy conversion applications.…”

Section: Cnts For Energy Storage Devicesmentioning

confidence: 99%

Applications of Carbon Based Materials in Developing Advanced Energy Storage Devices

Tariq¹,

Hussain²,

Mujahid³

et al. 2021

Carbon Nanotubes - Redefining the World of Electronics

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With the increasing pressure of population, the energy demand is growing explosively. By 2050, it is expected that the world population may reach to about 9 billion which may result in the increase of energy requirement to about 12.5 trillion watts. Due to increasing pressures of population, industries and technology, concerns to find possibilities to cope with increasing demand of energy resources, arise. Although the renewable energy resources including fossil fuels, wind, water and solar energy have been used for a long time to fulfill the energy requirements, but they need efficient conversions and storage techniques and are responsible for causing environmental pollution due to greenhouse gases as well. It is thus noteworthy to develop methods for the generation and storage of renewable energy devices that can replace the conventional energy resources to meet the requirement of energy consumption. Due to high energy demands, the sustainable energy storage devices have remained the subject of interest for scientists in the history, however, the traditional methods are not efficient enough to fulfill the energy requirements. In the present era, among other variety of advanced treatments, nano-sciences have attracted the attention of the scientists. While talking about nano-science, one cannot move on without admiring the extraordinary features of carbon nanotubes (CNTs) and other carbon based materials. CNTs are on the cutting edge of nano science research and finding enormous applications in energy storage devices. Excellent adsorption capabilities, high surface area, better electrical conductivity, high mechanical strength, corrosion resistance, high aspect ratio and good chemical and physical properties of CNTs have grabbed tremendous attention worldwide. Their charge transfer properties make them favorable for energy conversion applications. The limitation to the laboratory research on CNTs for energy storage techniques due to low specific capacitance and limited electrochemical performance can be overcome by surface functionalization using surface functional groups that can enhance their electrical and dispersion properties. In this chapter, ways CNTs employed to boost the abilities of the existing material used to store and transfer of energy have been discussed critically. Moreover, how anisotropic properties of CNTs play important role in increasing the energy storage capabilities of functional materials. It will also be discussed how various kinds of materials can be combined along CNTs to get better results.

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A Comprehensive Review on CNTs and CNT-Reinforced Composites: Syntheses, Characteristics and Applications

Cited by 165 publications

References 289 publications

Complex Geometry Strain Sensors Based on 3D Printed Nanocomposites: Spring, Three-Column Device and Footstep-Sensing Platform

Complex Geometry Strain Sensors Based on 3D Printed Nanocomposites: Spring, Three-Column Device and Footstep-Sensing Platform

Nanomaterials for 3D Printing of Polymers via Stereolithography: Concept, Technologies, and Applications

Applications of Carbon Based Materials in Developing Advanced Energy Storage Devices

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