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Search for "laser ablation" in Full Text gives 80 result(s) in Beilstein Journal of Nanotechnology.

Microwave-induced electric discharges on metal particles for the synthesis of inorganic nanomaterials under solvent-free conditions

  • Vijay Tripathi,
  • Harit Kumar,
  • Anubhav Agarwal and
  • Leela S. Panchakarla

Beilstein J. Nanotechnol. 2020, 11, 1019–1025, doi:10.3762/bjnano.11.86

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  • microscopy; Introduction The synthesis of nanomaterials in short time intervals with fewer chemicals has become increasingly important in materials science. Traditional routes of synthesizing nanomaterials, including sol–gel synthesis, solvothermal synthesis, arc-discharge synthesis, or laser ablation
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Published 13 Jul 2020

Soybean-derived blue photoluminescent carbon dots

  • Shanshan Wang,
  • Wei Sun,
  • Dong-sheng Yang and
  • Fuqian Yang

Beilstein J. Nanotechnol. 2020, 11, 606–619, doi:10.3762/bjnano.11.48

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  • residuals to synthesize carbon nanoparticles by hydrothermal carbonization (HTC), annealing at high temperature, and laser ablation (LA) in a NH4OH solution. The carbon nanoparticles synthesized with the HTC process (HTC-CDs) exhibit photoluminescent characteristics with strong blue emission. The annealing
  • to introduce N-surface-functional groups to carbon nanoparticles made from biomass and biowaste and to produce stable photoluminescent CDs with excellent water-wettability. Keywords: biomass; carbon dots; hydrothermal process; laser ablation; N-doping; photoluminescence; Introduction Carbon-based
  • synthesizing CDs, including oxidation and reduction [13][14][15], laser ablation [16], microwave irradiation [9], pyrolysis [17], and hydrothermal treatment [18]. Some of these methods are tedious and time consuming and use strong acids and/or surface treatment to improve their water solubility and
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Published 09 Apr 2020

Formation of metal/semiconductor Cu–Si composite nanostructures

  • Natalya V. Yumozhapova,
  • Andrey V. Nomoev,
  • Vyacheslav V. Syzrantsev and
  • Erzhena C. Khartaeva

Beilstein J. Nanotechnol. 2019, 10, 2497–2504, doi:10.3762/bjnano.10.240

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  • they are immiscible in the bulk state. In addition to chemical techniques [9][10][11][12], physical methods such as gas-phase methods [5][6][15], laser ablation [7][8][16], and magnetron-sputter gas-phase condensation [17] have been developed. When these methods are combined with the possibility of
  • core–shell nanoparticles upon the condensation of silicon atoms onto the core when a copper nanocluster is introduced into a gaseous medium consisting of silicon atoms. In [22], similar particles were obtained by laser ablation of Au nanoparticles onto larger Co-oxide particles and agglomeration with a
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Published 13 Dec 2019

Nanostructured and oriented metal–organic framework films enabling extreme surface wetting properties

  • Andre Mähringer,
  • Julian M. Rotter and
  • Dana D. Medina

Beilstein J. Nanotechnol. 2019, 10, 1994–2003, doi:10.3762/bjnano.10.196

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  • example, sol–gel synthesis, electrochemical deposition, anodization, electrochemical polymerization, electrospinning, plasma treatment, chemical or hydrothermal methods, vapor deposition, layer-by-layer assembly or laser ablation [19][27][28][29][30][31][32][33][34][35][36][37][38][39]. However, the
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Published 09 Oct 2019

Pulsed laser synthesis of highly active Ag–Rh and Ag–Pt antenna–reactor-type plasmonic catalysts

  • Kenneth A. Kane and
  • Massimo F. Bertino

Beilstein J. Nanotechnol. 2019, 10, 1958–1963, doi:10.3762/bjnano.10.192

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  • Kenneth A. Kane Massimo F. Bertino Department of Physics, Virginia Commonwealth University, Richmond, Virginia, 23220, USA 10.3762/bjnano.10.192 Abstract Ag, Pt, and Rh monometallic colloids were produced via laser ablation. Separate Ag–Rh and Ag–Pt heterostructures were formed by mixing and
  • –reactor; catalysis; heterostructures; laser ablation; multicomponent; nanoparticles; 4-nitrophenol; plasmonic; Pt; Rh; Introduction Metal nanoparticles can interact with visible light through an excitation of the localized surface plasmon resonance (LSPR). The LSPR is a resonant, collective oscillation
  • a “forced plasmon” that efficiently generates hot charge carriers, transforming the catalytic NP into a photocatalytic NP. Here, the facile synthesis of highly active Ag–Rh and Ag–Pt heterostructures for the reduction of 4-nitrophenol through pulsed laser ablation is reported. The synthesis method
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Published 26 Sep 2019

Gas sensing properties of individual SnO2 nanowires and SnO2 sol–gel nanocomposites

  • Alexey V. Shaposhnik,
  • Dmitry A. Shaposhnik,
  • Sergey Yu. Turishchev,
  • Olga A. Chuvenkova,
  • Stanislav V. Ryabtsev,
  • Alexey A. Vasiliev,
  • Xavier Vilanova,
  • Francisco Hernandez-Ramirez and
  • Joan R. Morante

Beilstein J. Nanotechnol. 2019, 10, 1380–1390, doi:10.3762/bjnano.10.136

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  • and high surface-to-volume ratio, obtained by sintering, are traditionally used as sensing materials. By means of preparation methods such as magnetron sputtering, laser ablation, and pulverization, layer-by-layer nanoparticle deposition can be achieved with adhesion to the substrate and to previously
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Published 08 Jul 2019
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  • plasmonic nanoparticles dispersed on a substrate [38], inside microcavities [39], or even while monitoring electrochemical reactions [40]. This work reports on the study of SERS tags obtained by laser ablation synthesis in liquid solution (LASiS) of gold (Au) nanoparticles, their coating with three
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Published 10 May 2019

Fabrication of silver nanoisland films by pulsed laser deposition for surface-enhanced Raman spectroscopy

  • Bogusław Budner,
  • Mariusz Kuźma,
  • Barbara Nasiłowska,
  • Bartosz Bartosewicz,
  • Malwina Liszewska and
  • Bartłomiej J. Jankiewicz

Beilstein J. Nanotechnol. 2019, 10, 882–893, doi:10.3762/bjnano.10.89

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  • nanoparticle films [12][13][14]. Metallic NPs of different sizes and shapes are prepared in solution mainly by chemical synthesis using various reducing agents and conditions [13]. However, physical methods such as laser ablation are also often used [15]. Other examples of nanoparticle fabrication using
  • fabricated NPs can be controlled very well [13]. One of the less commonly used physical methods for the fabrication of SERS active gold and silver nanoisland films is pulsed laser deposition (PLD) [19][20][21][22][23][24][25]. In PLD, the materials are deposited on a substrate through laser ablation from a
  • the Si substrate by laser ablation (PLD) registered in a wide range of binding energy, and Ag 3d and Ag-MNN Auger band registered in a narrow range of energy (insert). Reflectance spectra of fabricated Ag nanoisland films: a) for samples with the layers deposited at a laser fluence of 5.56 ± 0.37J/cm2
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Published 16 Apr 2019

Tungsten disulfide-based nanocomposites for photothermal therapy

  • Tzuriel Levin,
  • Hagit Sade,
  • Rina Ben-Shabbat Binyamini,
  • Maayan Pour,
  • Iftach Nachman and
  • Jean-Paul Lellouche

Beilstein J. Nanotechnol. 2019, 10, 811–822, doi:10.3762/bjnano.10.81

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  • carbon equivalent and found the toxicity of the former to be lower [23]. Wu et al. produced biocompatible MoS2 nanoparticles by a pulsed laser ablation technique [24]. Examples of medical applications with TMDC nanostructures are their addition as reinforcing agents to polymers for bone-tissue
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Published 02 Apr 2019

Study of silica-based intrinsically emitting nanoparticles produced by an excimer laser

  • Imène Reghioua,
  • Mattia Fanetti,
  • Sylvain Girard,
  • Diego Di Francesca,
  • Simonpietro Agnello,
  • Layla Martin-Samos,
  • Marco Cannas,
  • Matjaz Valant,
  • Melanie Raine,
  • Marc Gaillardin,
  • Nicolas Richard,
  • Philippe Paillet,
  • Aziz Boukenter,
  • Youcef Ouerdane and
  • Antonino Alessi

Beilstein J. Nanotechnol. 2019, 10, 211–221, doi:10.3762/bjnano.10.19

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  • , F-91297 Arpajon, France 10.3762/bjnano.10.19 Abstract We report an experimental study demonstrating the feasibility to produce both pure and Ge-doped silica nanoparticles (size ranging from tens up to hundreds of nanometers) using nanosecond pulsed KrF laser ablation of bulk glass. In particular
  • of a few nanometers. Keywords: Ge-doped; laser ablation; nanomaterials; optical materials; silica; Introduction In material science, laser–matter interaction encompasses not only the study of basic mechanisms but also material machining/engineering. Such emphasis is partially related to the
  • carried out using a laser ablation (or irradiation) technique in liquid, which was successfully employed in the past on different materials [38][39][40]. In detail, employing a preparation procedure similar to that used in one of our previous studies [18], the samples were immersed in distilled water (the
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Published 16 Jan 2019

Comparative biological effects of spherical noble metal nanoparticles (Rh, Pd, Ag, Pt, Au) with 4–8 nm diameter

  • Alexander Rostek,
  • Marina Breisch,
  • Kevin Pappert,
  • Kateryna Loza,
  • Marc Heggen,
  • Manfred Köller,
  • Christina Sengstock and
  • Matthias Epple

Beilstein J. Nanotechnol. 2018, 9, 2763–2774, doi:10.3762/bjnano.9.258

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  • polyol process where compounds like ethylene glycol act as the solvent, reducing, complexing and stabilizing agent at the same time [59]. In general, chemical methods are usually based on the reduction of dissolved cationic metal species by suitable reducing agents [1]. Physical methods like laser
  • ablation have also gained increasing importance in the last decade [60]. Rhodium nanoparticles can be prepared by reduction in the presence of suitable capping agents. The manipulation of the reaction kinetics by variation of synthesis parameters such as temperature and concentration leads to nanoparticles
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Published 29 Oct 2018

SERS active Ag–SiO2 nanoparticles obtained by laser ablation of silver in colloidal silica

  • Cristina Gellini,
  • Francesco Muniz-Miranda,
  • Alfonso Pedone and
  • Maurizio Muniz-Miranda

Beilstein J. Nanotechnol. 2018, 9, 2396–2404, doi:10.3762/bjnano.9.224

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  • , 41125 Modena, Italy Center for Molecular Modeling, Ghent University, Technologiepark 903, 9052 Zwijnaarde, Belgium 10.3762/bjnano.9.224 Abstract Highly stable Ag–SiO2 nanoparticle composites were first obtained by laser ablation of a silver target in an aqueous colloidal dispersion of silica and
  • computational DFT approach provided evidence of ligand adsorption on positively charged adatoms of the silver nanostructured surface, in a very similar way to the metal/molecule interaction occurring in the corresponding Ag(I) coordination compound. Keywords: 2,2’-bipyridine; DFT; laser ablation; silica
  • of the present work is to apply laser ablation to the fabrication of new materials for surface enhanced Raman scattering (SERS) [15][16], focusing on silver and silica nanoparticles in aqueous suspension. This research was undertaken for three main reasons. The first is that silver nanoparticles that
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Published 06 Sep 2018

Review on nanoparticles and nanostructured materials: history, sources, toxicity and regulations

  • Jaison Jeevanandam,
  • Ahmed Barhoum,
  • Yen S. Chan,
  • Alain Dufresne and
  • Michael K. Danquah

Beilstein J. Nanotechnol. 2018, 9, 1050–1074, doi:10.3762/bjnano.9.98

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  • morphologies such as hollow tubes, ellipsoids or spheres. Fullerenes (C60), carbon nanotubes (CNTs), carbon nanofibers, carbon black, graphene (Gr), and carbon onions are included under the carbon-based NMs category. Laser ablation, arc discharge, and chemical vapor deposition (CVD) are the important
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Published 03 Apr 2018

The role of ligands in coinage-metal nanoparticles for electronics

  • Ioannis Kanelidis and
  • Tobias Kraus

Beilstein J. Nanotechnol. 2017, 8, 2625–2639, doi:10.3762/bjnano.8.263

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  • to twelve times higher than in the unfilled polymer (Figure 8) [141]. Semaltianos et al. prepared ligand-free silver nanoparticles in deionized water by laser ablation. Their colloidal solution was mixed with the polymer mixture PEDOT:PSS, which coated the metal surface. The sulfur atom of the
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Published 07 Dec 2017

Au nanostructure fabrication by pulsed laser deposition in open air: Influence of the deposition geometry

  • Rumen G. Nikov,
  • Anna Og. Dikovska,
  • Nikolay N. Nedyalkov,
  • Georgi V. Avdeev and
  • Petar A. Atanasov

Beilstein J. Nanotechnol. 2017, 8, 2438–2445, doi:10.3762/bjnano.8.242

Graphical Abstract
  • material was deposited on quartz substrates. The laser ablation was performed using an Nd:YAG laser system (Lotis LS-2147) operating at a wavelength of 355 nm with a pulse duration of 15 ns and a repetition rate of 10 Hz. The PLD experiments were carried out in air at atmospheric pressure. The angle
  • geometries used in the experiments. Electrical resistance and hydrophobicity of the Au nanostructures produced under different geometries. Acknowledgements The authors acknowledge the financial support by project DFNP-184 “Nanostructured coatings fabricated by laser ablation in air” under the Assistance for
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Published 17 Nov 2017

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

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  • batteries [3][4][5], fuel cells [6][7], supercapacitors [8][9], catalysis carriers [10][11], drug delivery [12][13] and adsorption [14][15]. Various techniques, including arc discharge [16], laser ablation [17], chemical vapor deposition [18], and solvothermal method [19], have been developed for the
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Published 11 Sep 2017

Luminescent supramolecular hydrogels from a tripeptide and nitrogen-doped carbon nanodots

  • Maria C. Cringoli,
  • Slavko Kralj,
  • Marina Kurbasic,
  • Massimo Urban and
  • Silvia Marchesan

Beilstein J. Nanotechnol. 2017, 8, 1553–1562, doi:10.3762/bjnano.8.157

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  • electron transfer and redox properties. There are two main methods to synthesize CNDs: top-down (e.g., laser ablation, electrochemical synthesis) and bottom-up (e.g., combustion, microwave irradiation) [1][2]. In particular, the use of microwave (MW) irradiation is an interesting synthetic approach, which
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Published 01 Aug 2017

Growth, structure and stability of sputter-deposited MoS2 thin films

  • Reinhard Kaindl,
  • Bernhard C. Bayer,
  • Roland Resel,
  • Thomas Müller,
  • Viera Skakalova,
  • Gerlinde Habler,
  • Rainer Abart,
  • Alexey S. Cherevan,
  • Dominik Eder,
  • Maxime Blatter,
  • Fabian Fischer,
  • Jannik C. Meyer,
  • Dmitry K. Polyushkin and
  • Wolfgang Waldhauser

Beilstein J. Nanotechnol. 2017, 8, 1115–1126, doi:10.3762/bjnano.8.113

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  • (PVD) [27][28], which includes techniques such as magnetron sputter deposition, pulsed laser ablation or evaporation [3][29][30]. In this regard, PVD offers a wide processing window in terms of attainable deposition temperatures and substrates, constituent element fluxes and kinetic energies of the
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Published 22 May 2017

Investigation of growth dynamics of carbon nanotubes

  • Marianna V. Kharlamova

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

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  • developing the methods of their efficient synthesis. During last years, significant progress was made in this field. The arc-discharge, laser ablation and chemical vapor deposition (CVD) methods were optimized for the synthesis of SWCNTs in a high yield [5][6]. Synthesis parameters can be varied in a broad
  • summarized. Finally, the growth properties of inner tubes inside SWCNTs filled with fullerene and organometallic molecules are considered. Synthesis of carbon nanotubes The SWCNTs can be synthesized by the arc-discharge, laser ablation and chemical vapour deposition (CVD) techniques. A detailed overview of
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Published 11 Apr 2017

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

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  • response time, sensitivity and reversibility were essentially enhanced due to graphene functionalisation by laser deposited V2O5. This can be explained by an increased surface density of gas adsorption sites introduced by high energy atoms in laser ablation plasma and formation of nanophase boundaries
  • ≈20 nm in diameter from the laser-deposited nanostructured material can be distinguished in the image. It is well known that gas phase species created by laser ablation of solids have a wide distribution of kinetic energy [17]. A considerable fraction of particles can have sufficient energy (≈100 eV
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Published 07 Mar 2017

The longstanding challenge of the nanocrystallization of 1,3,5-trinitroperhydro-1,3,5-triazine (RDX)

  • Florent Pessina and
  • Denis Spitzer

Beilstein J. Nanotechnol. 2017, 8, 452–466, doi:10.3762/bjnano.8.49

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  • sensitivity tests have been reported, provoking the question about whether a nanopowder could have be obtained from those colloidal suspensions. Laser ablation For the first time, Gottfried et al. [74] successfully produced RDX nanoparticles using laser ablation. A near-infrared, nanosecond pulsed laser was
  • toward electrostatic discharge. Conclusion As displayed in Table 6, the smallest diameter of RDX is either obtained from wet techniques or from small-scale approaches which cannot be transferred to industry (PVD and laser ablation). Even if PVD has been successfully used in the semiconductor sector for
  • our everyday electronic devices for decades, PVD applied on energetic materials will never be able to reach a production of several hundred of grams per hour. However, PVD is suitable for the current trend to create ”pyrotechnic integrated circuits”. Femtosecond laser ablation is used for nanoparticle
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Published 17 Feb 2017

Laser irradiation in water for the novel, scalable synthesis of black TiOx photocatalyst for environmental remediation

  • Massimo Zimbone,
  • Giuseppe Cacciato,
  • Mohamed Boutinguiza,
  • Vittorio Privitera and
  • Maria Grazia Grimaldi

Beilstein J. Nanotechnol. 2017, 8, 196–202, doi:10.3762/bjnano.8.21

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  • annealing treatment, according to the most common synthesis techniques [21]. Recently, we proposed laser ablation in water as a synthesis route for efficient TiO2-based catalysts by using a high energy 1064 nm wavelength laser [22][24][25]. In the present work, we focus our attention on the synthesis of a
  • samples have a surface area of 0.7 cm2. The synthesis of platinum nanoparticles (PtNps) was performed by pulsed laser ablation in liquid by irradiating a Pt metal foil (Sigma Aldrich, purity 99%) with a Nd:YAG laser (Giant G790-30) at 1064 nm (10 ns pulse duration, 10 Hz repetition rate). The laser was
  • ; (b) synthesis of Pt nanoparticles via laser ablation in water; (c) schematic representation of the black TiOx/Ti/PtNp multilayer structure after the deposition of the Pt nanoparticles on the rear side of the irradiated Ti foil. Left: Photograph of the irradiated sample. Middle: low-magnification SEM
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Published 19 Jan 2017

Grazing-incidence optical magnetic recording with super-resolution

  • Gunther Scheunert,
  • Sidney. R. Cohen,
  • René Kullock,
  • Ryan McCarron,
  • Katya Rechev,
  • Ifat Kaplan-Ashiri,
  • Ora Bitton,
  • Paul Dawson,
  • Bert Hecht and
  • Dan Oron

Beilstein J. Nanotechnol. 2017, 8, 28–37, doi:10.3762/bjnano.8.4

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  • recording layer, became paramagnetic. Polarization dependence of absorptivity (λ = 785 nm): p-polarized light is 3.5–4 times better absorbed than s-polarized light. Large powers damaged the sample irreversibly by laser ablation, leaving a topographical trench (not shown) and strong artefacts in the magnetic
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Published 04 Jan 2017

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

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  • 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
  • addition, the hydrothermal technique leads directly to carbon nanofoam with no further treatment necessary. This is important since nanocarbon materials often need to be purified after synthesis. For example, production methods such as arc discharge [63] and laser ablation [64] may lead to carbon soot
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Published 27 Dec 2016

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

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  • can be dissolved in HSO3Cl within minutes [36]. Synthesis There are three different methods for the production of CNTs: (1) arc discharge, (2) CVD, and (3) laser ablation. The size, shape, yield, structure and orientation of CNTs and MLG are largely dependent on the process variables. Therefore, fine
  • currently highest volume and surface densities of 60–70 kg·m−3 and 1016 m−2, respectively [44]. Laser ablation: Laser ablation was employed to produce fullerene. It was later applied to produce SWNTs on metal particles as catalyst. The high price of CNTs limits their widespread application. This is mainly
  • caused by limited mass production [130]. Laser ablation is capable of the production of SWNTs in large quantities with average diameters of about 1.2 nm [36]. Laser ablation produces refined CNT but at a lower yield. Composites Some of the processes to produce nanocomposites are described in Table 4. The
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Published 12 Aug 2016
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