All carbon non-covalent exohedral hybrids: C60 aggregates on nanotube networks

Yekymov, Evgenee; Bounioux, Céline; Itzhak-Cohen, Racheli; Zeiri, Leila; Shahnazaryan, Emil; Katz, Eugene A.; Yerushalmi‐Rozen, Rachel

doi:10.1016/j.jechem.2017.10.035

Cited by 7 publications

(12 citation statements)

References 22 publications

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“…Statistical analysis of TEM images of more than 500 nanocrystals deposited on MWNTs scaffolds ( Figure S1 in the ESM) indicates that most of the crystallites are grown at defect points or MWNTs junctions, in accordance with previous observations [13].…”

Section: Nano-morphology and Raman Spectra Of As-prepared C 60 -Mwnt supporting

confidence: 89%

“…Figure 2 presents typical TEM images of as-prepared C 60 -MWNTs hybrids. Electron diffraction of the fullerene clusters confirmed their fcc crystalline structure [13]. Statistical analysis of ~ 100 TEM images (Fig.…”

Section: Nano-morphology and Raman Spectra Of As-prepared C 60 -Mwnt mentioning

confidence: 71%

“…Step 1: Solution assembly of 3D MWNTs scaffolds was carried out by deposition of CNTs from ortho-dichlorobenzene (odCB) dispersions following sonication (50 W, 43 kHz) at 0 °C of non-treated CNTs powders at concentrations ranging between 0.001 and 0.1 wt%, in accordance with a previously published procedure [13]. The scaffolds were deposited on gold-coated TEM grids, quartz substrates and mica.…”

Section: Preparation Of C 60 -Mwnts Hybridsmentioning

confidence: 99%

“…Recently, we reported [13] the preparation of all-carbon (C 60 -CNT) exohedral vdW hybrids. The hybrids comprise 3D scaffolds of multi-walled CNTs (MWNTs) and nanocrystals of C 60 fullerenes.…”

Section: Introductionmentioning

confidence: 99%

“…First, pristine CNTs are deposited from liquid dispersion onto a target substrate and random 3D scaffolds of individual tubes assemble as the solvent is rapidly evaporated. In the second step, fullerenes are sublimated and deposited from the vapor phase onto the pre-assembled scaffolds [13]. In this system, structural defects and junction points in the MWNTs scaffolds were observed to act as nucleation points for fullerite nanocrystals.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and stabilization of C60-carbon nanotube exohedral hybrids with controlled nano-morphology

2019

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Molecularly engineered non-covalent hybrids comprising carbon nanotubes (CNTs) and fullerenes may combine the electronic and mechanical properties of CNTs with the optical and excellent electron acceptor characteristics of the fullerenes. As was demonstrated by us in a previous study, a two-step process comprising solution processing of multi-wall nanotubes (MWNTs) followed by vacuum deposition of fullerenes can be used for the preparation of non-covalent C 60-MWNTs hybrids. Transmission electron microscopy measurements and Raman characterization indicate that the hybrids comprise random 3D scaffolds of individual MWNTs and fullerite nanocrystals. While surface migration of the fullerenes on the MWNTs surface leads to coarsening of the nanocrystals, we find that controlled induction of SP 3 point defects on the MWNTs surface (via UV/O 3 treatment) traps the initial nano-morphology and preserves the nano-dimensions and structure of the fullerene crystals. The nano-morphology of the treated nanotubes is preserved also when the hybrid is coated by a polymer layer (poly(3-hexylthiophene-2,5-diyl), P3HT, and the polymer-hybrid films show significant quenching of the photoluminescence, indicating that these hybrids could be useful in photovoltaic applications where the typical size of the nano-domains and the degree of crystallinity of the fullerenes play an important role in light-matter interactions.

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Section: Nano-morphology and Raman Spectra Of As-prepared C 60 -Mwnt supporting

confidence: 89%

Section: Nano-morphology and Raman Spectra Of As-prepared C 60 -Mwnt mentioning

confidence: 71%

Section: Preparation Of C 60 -Mwnts Hybridsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preparation and stabilization of C60-carbon nanotube exohedral hybrids with controlled nano-morphology

2019

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Self‐Assembled Fullerene Nanostructures: Synthesis and Applications

Baskar

Benzigar

Talapaneni

et al. 2021

Adv Funct Materials

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Functionalized fullerene nanostructures are a distinct class of materials that exhibit the combined properties of both fullerene and nanostructures including excellent optoelectronic features, modified band edges, high electron affinity, fast charge transfer capabilities, and tunable structural and textural properties. These fascinating properties allow for their utilization in many applications such as polymer solar cells, photovoltaics, photocatalysis, photodynamic therapy, electrocatalysis, environmental remediation, and drug and gene delivery. Numerous synthesis methods and anchoring groups are employed for functionalized fullerenes with nanostructures by using convergent bottom-up and top-down strategies. The supramolecular self-assembly and functionalization of fullerenes through robust chemistry approaches such as surface oxidation, grafting, polymer coating, doping of metals/nonmetal heteroatoms, noncovalent modification with 2D materials and nanoparticle attachment result in achieving fine control over its surface and bulk properties, including increased solubility, wettability, electron transport, acid-base properties, adsorption, electronic conductivity, and light absorption. This review analyzes the salient developments in the fabrication of nanostructured fullerenes and their functionalized derivatives for many applications including adsorption, catalysis, sensors, energy storage, solar cells, drug delivery, magnetic and superconducting devices. The contents of this review will allow the readers to cherish exciting possibilities and opportunities in field of functionalized nanofullerenes.

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Free‐Standing and Highly Tough 3D Network of Carbon Nanotubes and MXene Constructed by Facile “Egg‐Box” Coordination Mechanism for High‐Efficiency Solar Evaporator

Jin,

Gong,

et al. 2023

Solar RRL

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Solar steam generation to generating steam through solar light drived surface evaporation (SIE) can be an attractive methodology which utilizes green and inexhaustible solar energy to generate water steam and fresh water in superior efficiency compared with the solar evaporators explored before. However, some drawbacks of the current photothermal conversion materials such as complicated fabrication process, high cost, and low salt tolerance often heavily restrict their wide applications. Herein, we design and develop a green and low‐cost method for constructing free‐standing, elastic and highly tough 3D network of carbon nanotubes and MXene though an efficient “egg‐box” coordination mechanism in only one step for high‐efficiency water evaporation. When the mass ratios of MXene and carbon nanotubes (CNTs) are designed at 2:1, 1:1, 1:1.5 and 1:2, and cross‐linked with sodium alginate (SA) and CaCl2, four composite materials (MCS‐1, MCS‐2, MCS‐3 and MCS‐4) are obtained, among which MCS‐3 shows the most excellent light absorption and hydrophilicity, leading to the best evaporation rate of 1.644 kg m‐2 h‐1, and the highest photothermal conversion efficiency of 96%. Moreover, subject to different harsh environments and durability tests, MCS‐3 also shows desired structural stability and evaporation performance. As demonstrated by its extraordinary photothermal evaporation properties, MCS‐3 could envision a wide range of commercial applications covering wastewater purification and brine sea water desalination etc.This article is protected by copyright. All rights reserved.

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All carbon non-covalent exohedral hybrids: C60 aggregates on nanotube networks

Cited by 7 publications

References 22 publications

Preparation and stabilization of C60-carbon nanotube exohedral hybrids with controlled nano-morphology

Preparation and stabilization of C60-carbon nanotube exohedral hybrids with controlled nano-morphology

Self‐Assembled Fullerene Nanostructures: Synthesis and Applications

Free‐Standing and Highly Tough 3D Network of Carbon Nanotubes and MXene Constructed by Facile “Egg‐Box” Coordination Mechanism for High‐Efficiency Solar Evaporator

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