Synthesis, Structure, and Properties of Single‐Walled Carbon Nanotubes

Zhou, Weiya; Bai, Xuedong; Wang, Enge; Xie, Sishen

doi:10.1002/adma.200901071

Cited by 139 publications

(90 citation statements)

References 260 publications

(272 reference statements)

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“…Dependence of external applied potential on the PL spectra of the film containing (7,5), (7,6), and ( …”

Section: Fig 2 (A)mentioning

confidence: 99%

“…From the near-IR PL spectrum of the film (Fig. 1), it contained isolated SWNTs whose chiralities are (6,5), (8,3), (7,5), (8,4), (10,2), (7,6), (9,4), (10,3), (8,6), (9,5), (12,1), (11,3), (8,7), (10,5), and (9,7). We carried out in situ near-IR PL spectroelectrochemistry.…”

Section: Pl Spectroelectrochemistry For Redox Potential Determinamentioning

confidence: 99%

“…As another approach, chemical reduction is also applicable to determine electronic states of SWNTs through the PL quenching process [31], in which the electron transfer reactions of sodium dithionite with SWNTs quench PL from 14 individually dissolved SWNTs in an aqueous solution of sodium dodecyl sulfate (SDS): (6,5), (8,3), (7,5), (8,4), (10,2), (7,6), (9,4), (8,6), (9,5), (12,1), (11,3), (8,4), (10,5) and (9,7)-SWNTs [32]. Based on the analysis using the Nernst equation for the PL change, the conduction band (c1) levels of the 14 isolated SWNTs were determined and the obtained results agreed well with the Fermi levels based on the first principle calculations [33].…”

Section: Fig 2 (A)mentioning

confidence: 99%

“…The CNTs have been central materials in the field of nano-materials science and nanotechnology because of their remarkable electronic, mechanical and thermal properties that far exceed existing materials. In particular, SWNTs have been widely investigated in various fields including electronics, chemistry and energy storage [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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<i>In Situ </i>Photoluminescence Spectroelectrochemistry for Determination of Electronic States of Single-Walled Carbon Nanotubes

Shiraki

Nakashima

2015

e-J. Surf. Sci. Nanotech.

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The determination of electronic states of single-walled carbon nanotubes (SWNTs) has been a central issue in nanoscience of carbon nanotubes. We have established an in situ photoluminescence (PL) spectroelectrochemistry to determine the electronic properties of the SWNTs. This review article focuses on the fundamentals of the in situ PL spectroelectrochmical method to determine electrochemical potentials of isolated SWNTs and microenviromental effects on the electronic states of the SWNTs, electronic states of SWNTs with a single chirality, and empirical prediction for the electronic potentials of the SWNTs. Such electronic state determination is important for detailed understanding about fundamental properties of the SWNTs and their applications, especially in electronic device applications of the nanotubes.

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“…Dependence of external applied potential on the PL spectra of the film containing (7,5), (7,6), and ( …”

Section: Fig 2 (A)mentioning

confidence: 99%

Section: Pl Spectroelectrochemistry For Redox Potential Determinamentioning

confidence: 99%

Section: Fig 2 (A)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

<i>In Situ </i>Photoluminescence Spectroelectrochemistry for Determination of Electronic States of Single-Walled Carbon Nanotubes

Shiraki

Nakashima

2015

e-J. Surf. Sci. Nanotech.

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“…Many other articles have reviewed the growth of singleand multi-walled carbon nanotubes, using either arc discharge, laser ablation, or catalytic CVD techniques [4][5][6][7][8][9][10][11][12][13][14][15][16].…”

mentioning

confidence: 99%

A review of the large-scale production of carbon nanotubes: The practice of nanoscale process engineering

et al. 2011

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Carbon nanotubes (CNTs) are nanomaterials that have attracted great research interest because of their unique properties and promising applications. The controllable synthesis of CNTs is a precondition for their broad application. In this review, we consider nanoscale process engineering and assess recent progress in the mass production of ultra-long, inexpensive CNTs with good alignment as well as tunability in wall number and diameter for fundamental and engineering science applications across multiple scales. Cutting-edge nanoscale process engineering research in the areas of physics, chemistry, materials, engineering, ecology, and social science will allow us to obtain high added value and multi-functional advanced CNTs. The synthesis of CNTs with controllable chirality, good-alignment, and predetermined sizes and lengths still presents great challenges. Through multidisciplinary scientific research, advanced CNT-based materials will promote the development of a sustainable society. According to the wall number of a CNT, it can be classified as a SWCNT, double-walled CNT (DWCNT), triple-walled CNT (TWCNT), or multi-walled CNT (MWCNT). Because of the covalent sp 2 bonds between individual carbon atoms, a nanotube can have a Young's modulus between 1.2-5.5 TPa, a tensile strength about a hundred times greater than that of steel, and can tolerate large strains before mechanical failure. A CNT can be a metal, semiconductor, or small-gap semiconductor. The state of the CNT depends heavily on the (m, n) indices, and, therefore, on the diameter and chirality. CNTs also possess tunable surfaces characteristics, well-defined hollow interiors, and high biocompatibility with living systems. Based on these properties, many potential applications, including both large-volume applications (such as conductive, electromagnetic, microwave absorbing, high-strength composites; super capacitor, or battery electrodes; catalyst and catalyst support; field emission displays; and transparent conducting films) and limited-volume applications (such as scanning probe tips; drug delivery systems; electronic devices; sensors; and actuators) have been proposed [2]. Controllable mass production of CNTs with the desired structures and properties is essential for future applications. In the past 20 years, arc discharge, laser ablation, and chemical vapor deposition (CVD) methods have been developed to produce CNTs in sizeable quantities. In CVD methods, the catalytic decomposition of a carbon feedstock into carbon and hydrogen atoms is initiated on an active catalyst surface, where the tubular CNTs grown. CVD growth can be achieved under mild conditions (such as normal pressure

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Hierarchical Nanocomposites Derived from Nanocarbons and Layered Double Hydroxides ‐ Properties, Synthesis, and Applications

Zhao

Zhang

Huang

et al. 2012

Adv Funct Materials

559

311

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A good arrangement and construction of different low-dimensional nanomaterials (e.g., zero-dimensional (0D) nanoparticles (NPs), one-dimensional (1D) nanotubes, nanowires, nanorods, and two-dimensional (2D) flakes) as building blocks with two or more levels from the nanometer to the macroscopic scale leads to the formation of three-dimensional (3D) hierarchical nanocomposites. Hierarchical composites are widely observed in nature, e.g., in plant cell walls, bone, animal shells, and skeletons, showing that a high mechanical performance can be obtained by structuring matter across a range of length scales. The combination of low-dimensional nanomaterials with distinct physical and chemical properties into a composite with hierarchical structures can usually inherit full advantages of the component materials, or even lead to the formation of multifunctional materials with unexpected properties for unique applications. For instance, the combined clay/polymer, [1] carbon nanotube (CNT)/polymer, [2,3] or graphene/ polymer [4] nanocomposites show significantly improved mechanical, electrical, and energy-absorbing properties. Clay/ CNT nanocomposites obtained by growing CNTs on clays were demonstrated to be much more excellent nanofillers for polymer reinforcement [5] and were with better oil adsorption properties [6,7] compared with either clay or CNTs separately. They can even serve as an advanced material for shock-absorbing applications. [8] Tailored assembly of 1D CNTs and 2D graphene into 3D architectures can further explore the utilization and improve the performance of graphitic carbon materials in nanoelectronics, sensors, and energy storage/conversion devices. [9,10] Exploring hierarchical composites with multifunctional properties through combining various building blocks together into a well-designed structure has always been a hot topic for material science. Among various building blocks, nanocarbons and layered double hydroxides (LDHs) were intensly investigated recently. On one hand, nanocarbon materials including fullerene, CNTs, and graphene, have been of great interest in the physics, chemistry, and materials communities since the first discovery of fullerene in 1985. Recently, the rapid progress of graphene and graphene-based materials has again triggered tremendous interest in 2D nanomaterials. On the other hand, LDHs are amongst the most studied advanced functional materials Hierarchical Nanocomposites Derived from Nanocarbons and Layered Double Hydroxides -Properties, Synthesis, and ApplicationsThe combination of one-dimensional and two-dimensional building blocks leads to the formation of hierarchical composites that can take full advantages of each kind of material, which is an effective way for the preparation of multifunctional materials with extraordinary properties. Among various building blocks, nanocarbons (e.g., carbon nanotubes and graphene) and layered double hydroxides (LDHs) are two of the most powerful materials that have been widely used in human life. This Feature Article present...

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Synthesis, Structure, and Properties of Single‐Walled Carbon Nanotubes

Cited by 139 publications

References 260 publications

<i>In Situ </i>Photoluminescence Spectroelectrochemistry for Determination of Electronic States of Single-Walled Carbon Nanotubes

<i>In Situ </i>Photoluminescence Spectroelectrochemistry for Determination of Electronic States of Single-Walled Carbon Nanotubes

A review of the large-scale production of carbon nanotubes: The practice of nanoscale process engineering

Hierarchical Nanocomposites Derived from Nanocarbons and Layered Double Hydroxides ‐ Properties, Synthesis, and Applications

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