Preparation and characterization of polycarbonate/multiwalled carbon nanotube nanocomposites

• Claudio Larosa,
• Niranjan Patra,
• Marco Salerno,
• Lara Mikac,
• Remo Merijs Meri and
• Mile Ivanda

Beilstein J. Nanotechnol. 2017, 8, 2026–2031, doi:10.3762/bjnano.8.203

• observed shift and intensity clearly indicate a change in crystallinity of the nanocomposites after nanotube loading. The Raman spectra of the different PC/MWCNT composite films are shown in Figure 4. The blue curve represents the spectrum of bare PC, with the full fingerprint of the polymer in the region

Fabrication of carbon nanospheres by the pyrolysis of polyacrylonitrile–poly(methyl methacrylate) core–shell composite nanoparticles

• Dafu Wei,
• Youwei Zhang and
• Jinping Fu

Beilstein J. Nanotechnol. 2017, 8, 1897–1908, doi:10.3762/bjnano.8.190

• nanomaterials, such as rattle-type magnetic carbon nanospheres (45.15 mg/g) [49], magnetic oxidized multiwalled carbon nanotube- κ-carrageenan-Fe3O4 nanocomposites (46.36 mg/g) [51], graphene (185.00 mg/g) [52], γ-Fe2O3 nanocrystal-anchored macro/mesoporous graphene (216.3 mg/g) [53], Fe3O4-graphene@mesoporous

Effect of the fluorination technique on the surface-fluorination patterning of double-walled carbon nanotubes

• Lyubov G. Bulusheva,
• Yuliya V. Fedoseeva,
• Emmanuel Flahaut,
• Jérémy Rio,
• Christopher P. Ewels,
• Victor O. Koroteev,
• Gregory Van Lier,
• Denis V. Vyalikh and
• Alexander V. Okotrub

Beilstein J. Nanotechnol. 2017, 8, 1688–1698, doi:10.3762/bjnano.8.169

• (DWCNTs) display many advantages characteristic of single-walled carbon nanotubes (SWCNTs), particularly small diameter, high strength and flexibility [1]. Carbon nanotube (CNT) surfaces are rather inert to chemical functionalization. The highest possible concentration of attached surface species is

• to an optimal combination of hydrophobic properties and specific polar interactions [10]. The promises of the fluorinated CNTs may be fully realized only when the fluorine atoms would be controllably attached to the nanotube surface and the search of the appropriate ways for that is one of the key

• time should be carefully chosen to avoid nanotube damage [20]. Previously, we have revealed that the thermal behavior of the fluorinated DWCNTs strongly depends on the fluorination method [21]. An observation of fluorine removal within different temperature intervals has pointed on a difference in the

Miniemulsion copolymerization of (meth)acrylates in the presence of functionalized multiwalled carbon nanotubes for reinforced coating applications

• Bertha T. Pérez-Martínez,
• Lorena Farías-Cepeda,
• Víctor M. Ovando-Medina,
• José M. Asua,
• Lucero Rosales-Marines and
• Radmila Tomovska

Beilstein J. Nanotechnol. 2017, 8, 1328–1337, doi:10.3762/bjnano.8.134

• (hexadecane), finding that the surfactant was transferred to the latex during the reaction; this led to nanotube aggregation. Donescu et al. [34] carried out the miniemulsion polymerization of styrene, styrene/acrylonitrile and methyl methacrylate (MMA) in the presence of MWCNTs. Grafting of the polymer on

Synthesis of coaxial nanotubes of polyaniline and poly(hydroxyethyl methacrylate) by oxidative/initiated chemical vapor deposition

• Alper Balkan,
• Efe Armagan and
• Gozde Ozaydin Ince

Beilstein J. Nanotechnol. 2017, 8, 872–882, doi:10.3762/bjnano.8.89

• the annealing temperatures. For humidity experiments, circular gold electrodes were evaporated on the PANI films and the resistance was measured using a two-point probe to ensure consistency with the electrical characterization of the nanotube samples. The diameters of the gold electrodes were

• resistance on the humidity as observed in the thin films was also observed in the nanotube samples (Figure 9). This type of parabolic dependence of resistance on the humidity was previously reported for PANI nanotubes [53]. The competition between the doping and swelling effects determines at which RH% value

• of the inner pHEMA layer, leads to an overall increase in the nanotube diameter, and thus swelling of the outer PANI layer. The longer distances between PANI chains increase the hoping resistance of polymer structure so that the resistance of coaxial nanotubes increases with increasing humidity

Investigation of growth dynamics of carbon nanotubes

• Marianna V. Kharlamova

Beilstein J. Nanotechnol. 2017, 8, 826–856, doi:10.3762/bjnano.8.85

• peculiarities of the growth mechanism of carbon nanotubes. The physical and chemical states of the catalyst during the nanotube growth are discussed. The chirality selective growth of nanotubes is described. The main part of the review is dedicated to the analysis and systematization of the reported results on

• activation energy of the nanotube growth are summarized. Finally, the growth properties of inner tubes inside SWCNTs are considered. Keywords: activation energy; carbon nanotube; growth dynamics; growth rate; synthesis; Review Introduction Single-walled carbon nanotubes (SWCNTs) discovered in 1993 [1][2

• –solid–solid models, the tip- and base-growth models as well as the tangential and perpendicular growth modes. The physical and chemical states of the catalyst during the nanotube growth are considered. The chirality selective growth of nanotubes is described. The main part of the review is dedicated to

Measuring adhesion on rough surfaces using atomic force microscopy with a liquid probe

• Juan V. Escobar,
• Cristina Garza and
• Rolando Castillo

Beilstein J. Nanotechnol. 2017, 8, 813–825, doi:10.3762/bjnano.8.84

• measured for a contact line pinned on a strong defect on a carbon nanotube dipped in a liquid, also measured by AFM [35]. Just as before, dividing each measured pull-off force by 14.9 pN, we obtain numbers that are statistically close to integers. In this way, we get the approximate number of contacts

Vapor deposition routes to conformal polymer thin films

• Priya Moni,
• Ahmed Al-Obeidi and
• Karen K. Gleason

Beilstein J. Nanotechnol. 2017, 8, 723–735, doi:10.3762/bjnano.8.76

• ) on a commercial sponge using iCVD [46]. Figure 9b shows the iCVD coating conformally covering the sponge’s microstructure. Previously, Lau et al. demonstrated conformal coverage of iCVD grown fluoropolymers on vertically aligned carbon nanotube (CNT) forests to prevent capillary densification as seen

• in Figure 9c [43]. These coated nanotube forests were later shown to be beneficial to flexographic printing by Hart et al. [47]. Brown et al. showed that MLD could create 10 nm, conformal aluminum alkoxide derivative films on CNT sheets, as seen in Figure 9d, to create a composite material with 4

• -bead with conformal iCVD pHEMA coating, b) SEM image of commercial sponge with pHDFMA coating, c) SEM image of carbon nanotube forest with iCVD PTFE coating, d) TEM image of CNT bundle coated with MLD alucone coating, e) TEM image of lithium spinel oxide particle coated with iCVD pV4D4 coating, f) SEM

Synthesis of graphene–transition metal oxide hybrid nanoparticles and their application in various fields

• Arpita Jana,
• Elke Scheer and
• Sebastian Polarz

Beilstein J. Nanotechnol. 2017, 8, 688–714, doi:10.3762/bjnano.8.74

•  3a) via hydrothermal synthesis and chemical reduction of V2O5 by GO simultaneously in a Teflon lined autoclave [111]. When this hybrid is used as a cathode material in LIBs, it provides fast charging and discharging capability with long cycle performance (Figure 3b). VO2 (M) nanotube–graphene hybrids

Carbon nanotube-wrapped Fe₂O₃ anode with improved performance for lithium-ion batteries

• Guoliang Gao,
• Yan Jin,
• Qun Zeng,
• Deyu Wang and
• Cai Shen

Beilstein J. Nanotechnol. 2017, 8, 649–656, doi:10.3762/bjnano.8.69

• α-Fe2O3 microspheres was much better than that of commercial graphite (372 mAh·g−1) although further improvement in cyclic stability was needed [20]. An effective method to improve the electrical conductivity of Fe2O3 is to fabricate Fe2O3/carbon nanotube (CNT), Fe2O3/graphene or Fe2O3/graphene/CNT

Dispersion of single-wall carbon nanotubes with supramolecular Congo red – properties of the complexes and mechanism of the interaction

• Anna Jagusiak,
• Barbara Piekarska,
• Tomasz Pańczyk,
• Małgorzata Jemioła-Rzemińska,
• Elżbieta Bielańska,
• Barbara Stopa,
• Grzegorz Zemanek,
• Janina Rybarska,
• Irena Roterman and
• Leszek Konieczny

Beilstein J. Nanotechnol. 2017, 8, 636–648, doi:10.3762/bjnano.8.68

• ]. Covalent functionalization modifies CNT walls through introduction of different atoms or groups (e.g., fluoride, carboxyl, hydroxyl) to the carbon lattice. Noncovalent functionalization leaves the nanotube walls intact, but allows for separation of the bundles due to their interaction with different

• performed by sonication of pristine CNTs in an amphiphilic solution. Sonication leads both to the solubilization and shortening of carbon nanotubes. Shortening, resulting from long-term sonication, takes place at sites of structural defects present on nanotube surface. It is important to note that the

• carrier that indirectly links these molecules to CNTs, provided that its supramolecular character is preserved upon binding to the surface of the carbon nanotube. Such CR-conjugated CNTs could show increased drug capacity as compared to otherwise solubilized CNTs. Functionalized single-wall carbon

Gas sensing properties of MWCNT layers electrochemically decorated with Au and Pd nanoparticles

• Elena Dilonardo,
• Michele Penza,
• Marco Alvisi,
• Riccardo Rossi,
• Gennaro Cassano,
• Cinzia Di Franco,
• Francesco Palmisano,
• Luisa Torsi and
• Nicola Cioffi

Beilstein J. Nanotechnol. 2017, 8, 592–603, doi:10.3762/bjnano.8.64

• Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Laboratory Functional Materials and Technologies for Sustainable Applications - Brindisi Research Center, Brindisi, Italy, CNR-IFN Bari, Bari, Italy 10.3762/bjnano.8.64 Abstract Multiwalled carbon nanotube

Graphene functionalised by laser-ablated V₂O₅ for a highly sensitive NH₃ sensor

• Margus Kodu,
• Artjom Berholts,
• Tauno Kahro,
• Mati Kook,
• Peeter Ritslaid,
• Helina Seemen,
• Tea Avarmaa,
• Harry Alles and
• Raivo Jaaniso

Beilstein J. Nanotechnol. 2017, 8, 571–578, doi:10.3762/bjnano.8.61

• initiating or accelerating the desorption was introduced by Chen et al. [33] for carbon nanotube sensors. Thereafter, it was shown that the illumination is beneficial at the adsorption stage as well, acting to considerably enhance the magnitude of the response [34]. The benefits of UV excitation are also

Nanostructured carbon materials decorated with organophosphorus moieties: synthesis and application

• Giacomo Biagiotti,
• Vittoria Langè,
• Cristina Ligi,
• Stefano Caporali,
• Maurizio Muniz-Miranda,
• Anna Flis,
• K. Michał Pietrusiewicz,
• Giacomo Ghini,
• Alberto Brandi and
• Stefano Cicchi

Beilstein J. Nanotechnol. 2017, 8, 485–493, doi:10.3762/bjnano.8.52

• works describe the introduction of phosphorous moieties onto CNMs. Muleja et al. synthesized a MWCNTs-TPP system modifying the nanotube with the introduction of a phenyl bromide group via diazonium coupling and then of the phosphinating reagent [15]. Hamilton et al. described the functionalization of

• carbon nanotube with triphenylphosphine oxide (TPPO) using the carboxylic group, introduced with the oxidation, to covalently link the TPPO [16]. Only one example describes the functionalization of a graphene based material with a phosphine, the authors report the synthesis, characterization and test of

Role of oxygen in wetting of copper nanoparticles on silicon surfaces at elevated temperature

• Tapas Ghosh and
• Biswarup Satpati

Beilstein J. Nanotechnol. 2017, 8, 425–433, doi:10.3762/bjnano.8.45

• been observed in composite CuO–carbon nanotube and CuO–graphene systems [8][9]. CuO nanostructures find promising application in many other fields such as gas sensing, catalysis, and arsenic (As) removal in water purification [10][11][12]. Such differently shaped CuO nanostructures have been

Photo-ignition process of multiwall carbon nanotubes and ferrocene by continuous wave Xe lamp illumination

• Paolo Visconti,
• Patrizio Primiceri,
• Daniele Longo,
• Luciano Strafella,
• Paolo Carlucci,
• Mauro Lomascolo,
• Arianna Cretì and
• Giuseppe Mele

Beilstein J. Nanotechnol. 2017, 8, 134–144, doi:10.3762/bjnano.8.14

• promote an electron transfer by means of a photo-excitation process. The chemical physical feature of the multiwalled carbon nanotube/ferrocene nanocomposites (MWCNT/FeCp2) responsible for starting the ignition process could be ascribed to the charge-separated state, MWCNT .−–FeCp2 .+, as expected by

Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers

• Felix Pyatkov,
• Svetlana Khasminskaya,
• Vadim Kovalyuk,
• Frank Hennrich,
• Manfred M. Kappes,
• Gregory N. Goltsman,
• Wolfram H. P. Pernice and
• Ralph Krupke

Beilstein J. Nanotechnol. 2017, 8, 38–44, doi:10.3762/bjnano.8.5

Fundamental properties of high-quality carbon nanofoam: from low to high density

• Natalie Frese,
• Shelby Taylor Mitchell,
• Christof Neumann,
• Amanda Bowers,
• Armin Gölzhäuser and
• Klaus Sattler

Beilstein J. Nanotechnol. 2016, 7, 2065–2073, doi:10.3762/bjnano.7.197

• sponges [17]. Carbon nanofoams have first been produced using pulsed laser ablation of glassy carbon in argon atmosphere [18] and later, as graphite in liquid nitrogen [19]. Pulsed-laser deposition has also been used for the fabrication of carbon nanofoam electrodes [20]. Carbon nanotube foam in the form

• of aligned layered carbon nanotube structures infiltrated with pyrolytic carbon is considered useful in water treatment and oil spill cleanup [21]. Carbon nanofoam paper [22] is proposed for energy storage applications. Carbon nanofoam composites may be used for electrochemical capacitor electrodes

• ], nanoporous carbons [46], carbon nanotube scaffolds [47], and carbon foams [48][49]. The densities of these carbon materials are significantly lower compared to “heavy carbons” such as pristine graphite (2.26 g·cm−3), CVD grown carbon films (2.14 g·cm−3 [50]), or carbon nanotube forests (1.6 to 0.38 g·cm−3

A dioxaborine cyanine dye as a photoluminescence probe for sensing carbon nanotubes

• Mohammed Al Araimi,
• Petro Lutsyk,
• Anatoly Verbitsky,
• Yuri Piryatinski,
• Mykola Shandura and
• Aleksey Rozhin

Beilstein J. Nanotechnol. 2016, 7, 1991–1999, doi:10.3762/bjnano.7.190

• the PL detection towards the nanotube diameters. The energy diagram shown at the right-hand side of Figure 2a represents a two-component system consisting of the anionic surfactant SDBS and the SWNTs in water, where the anionic surfactant forms micelles around the nanotubes having typical exciton

• -covalent attachment of the dye to the nanotube results in the efficient RET at the excitation wavelength in the range of 700–760 nm and a strong redshift of the E11 levels (to E*11) in the NIR range (Table 1). The excitation energy of DOB-719 in this range (EDye) is transferred to the SWNT levels (E*11

• the nanotubes is diluted [25]. In the complex of DOB-719 with SWNT, the local increase of εbg can result from (i) a better access of water to the SWNTs and/or (ii) polar groups of the dye getting in close proximity to the nanotube surface. Thus, the nanotube transitions at E11 show significant

Nanoanalytics for materials science

• Thilo Glatzel and
• Tom Wirtz

Beilstein J. Nanotechnol. 2016, 7, 1674–1675, doi:10.3762/bjnano.7.159

• co-workers [6]. Finally, Mirzaei and Kiani described the vibration behavior of carbon-nanotube-reinforced composite structures highlighting the importance but also the feasibility of theoretical approaches in complex nanoanalytical studies [7]. Finally, we want to express our thanks to all authors

Nano- and microstructured materials for in vitro studies of the physiology of vascular cells

• Alexandra M. Greiner,
• Adria Sales,
• Hao Chen,
• Sarah A. Biela,
• Dieter Kaufmann and
• Ralf Kemkemer

Beilstein J. Nanotechnol. 2016, 7, 1620–1641, doi:10.3762/bjnano.7.155

• the feature geometry and size. Some studies reported that proliferation of SMCs was negatively affected by PDMS microgrooves [204][205] and titanium oxide (TiO2) nanotube surfaces [31]. However, nanopits positively regulated SMC proliferation and gene expression [30]. In other studies, human SMCs from

• regulated their gene expression [197]. On titanium oxide (TiO2) nanotube surfaces, vascular SMCs expressed more SMC α-actin (a marker of differentiation) [129]. YAP/TAZ (Yes-associated protein/transcriptional coactivator with PDZ-binding motif) is a protein complex that induces the expression of

The effect of dry shear aligning of nanotube thin films on the photovoltaic performance of carbon nanotube–silicon solar cells

• Benedikt W. Stolz,
• Daniel D. Tune and
• Benjamin S. Flavel

Beilstein J. Nanotechnol. 2016, 7, 1486–1491, doi:10.3762/bjnano.7.141

• South Australia, Adelaide 5042, Australia 10.3762/bjnano.7.141 Abstract Recent results in the field of carbon nanotube–silicon solar cells have suggested that the best performance is obtained when the nanotube film provides good coverage of the silicon surface and when the nanotubes in the film are

• aligned parallel to the surface. The recently developed process of dry shear aligning – in which shear force is applied to the surface of carbon nanotube thin films in the dry state, has been shown to yield nanotube films that are very flat and in which the surface nanotubes are very well aligned in the

• direction of shear. It is thus reasonable to expect that nanotube films subjected to dry shear aligning should outperform otherwise identical films formed by other processes. In this work, the fabrication and characterisation of carbon nanotube–silicon solar cells using such films is reported, and the

Improved lithium-ion battery anode capacity with a network of easily fabricated spindle-like carbon nanofibers

• Mengting Liu,
• Wenhe Xie,
• Lili Gu,
• Tianfeng Qin,
• Xiaoyi Hou and
• Deyan He

Beilstein J. Nanotechnol. 2016, 7, 1289–1295, doi:10.3762/bjnano.7.120

• combing pompon-like MnO nanocrystallites with carbon nanotube scaffolds [12]. Wang et al. and Zhao et al. claimed that the electrospun MnO–C composite nanofibers preformed high reversible capacities of 663 and 1082 mAh g−1, respectively, at a current density of 0.1 A g−1 [5][13]. On the whole, hybridizing

Fabrication and characterization of branched carbon nanostructures

• Sharali Malik,
• Yoshihiro Nemoto,
• Hongxuan Guo,
• Katsuhiko Ariga and
• Jonathan P. Hill

Beilstein J. Nanotechnol. 2016, 7, 1260–1266, doi:10.3762/bjnano.7.116

• electronic properties, it is well known that in carbon nanotube networks the junction resistance controls the overall performance [17]. Therefore, in addition to b-MWCNTs/composite applications, the enhanced electrical properties of networks arising within this new material has major potential benefits for

Reasons and remedies for the agglomeration of multilayered graphene and carbon nanotubes in polymers

• Rasheed Atif and
• Fawad Inam

Beilstein J. Nanotechnol. 2016, 7, 1174–1196, doi:10.3762/bjnano.7.109

• in the hexagonal lattice along the vectors a1 and a2, respectively [40]. If n = m, the nanotube is called “armchair”. If m = 0, it is called “zigzag”, and in all other cases it is chiral. The chirality affects the transport properties, especially electronic properties. If (2n + m) is a multiple of 3

• , the nanotube exhibits electron transport properties of a metal, while it behaves as a semiconductor if above condition is not satisfied. The semiconducting CNTs have varying bandgaps [36]. The bandgap for semi-conducting CNT is inversely proportional to the diameter of nanotube. The values of about

• (ABS) at 260 °C. Pellets were made from the extrudate and test samples were made by injection molding. TEM revealed a very good dispersion of the nanotubes [59]. The nanotube powder may adhere to walls of the mixer making shear mixing difficult. A combination of melting and solution techniques could be