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Easy method to prepare N-doped carbon nanotubes by

2015-9-1  Abstract. N-doped carbon materials are promising metal-free catalysts for a number of applications. In this work, a cost effective and easy method to prepare N-doped carbon nanotubes by ball milling was developed, which avoids the use of solvents and production of wastes. Melamine and urea were used as nitrogen precursors.

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Preparation of short carbon nanotubes by mechanical ball ...

2003-1-1  Among them, ball milling appears to be the simplest and cleanest process for cutting and opening CNTs on a large scale without any chemical or thermal treatment , , , , , , , . In this paper we performed a ball-milling treatment on multi-wall carbon nanotubes (MWNTs) prepared by the

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Effect of ball-milling time on mechanical properties of ...

2012-12-1  Carbon nanotubes reinforced pure Al (CNT/Al) composites were produced by ball-milling and powder metallurgy. Microstructure and its evolution of the mixture powders and the fabricated composites were examined and the mechanical properties of the composites were tested.

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Ball milling effect on the structure of single-wall carbon ...

2004-1-1  Ball milling is regularly applied to carbon materials. Applying graphite, it was used to produce highly curved nanostructures [1], [2], to insert lithium [3] or to improve the hydrogen storage capacity of the material [4], [5]. In this paper, we propose to use this grinding method on single-wall carbon nanotubes (SWNTs).

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Incorporation of carbon nanotubes into polyethylene by ...

2007-1-24  High energy ball milling (HEBM) was utilized, as an innovative process, to incorporate carbon nanotubes (CNTs) into a polyethylene (PE) matrix avoiding: high temperatures, solvents, ultrasonication, chemical modification of carbon nanotubes. Composites with 1,

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Effect of Ball Milling Parameters on the Synthesization of ...

Recently, carbon nanotubes (CNTs) are attracting much interest as fibrous materials for reinforcing aluminium matrix composites due to unique properties such as high strength, elastic modulus, flexibility and high aspect ratios. However, the quality of the dispersion is the major concern factor which determines the homogeneity of the enhanced mechanical and tribological properties of the ...

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Ball-milling of graphite and muilti-wall carbon nanotubes

The structural modification of graphite and multi-wall carbon nanotubes (MWCNTs) during ball-milling was examined. A comparison of structures after ball-milling was made between graphite and MWCNTs. The ball milling parameters were also examined: milling atmospheres, milling methods, milling mode an

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Ball‐Milling Modification of Single‐Walled Carbon ...

2011-2-2  Ball-Milling Modification of Single-Walled Carbon Nanotubes: Purification, Cutting, and Functionalization Noelia Rubio , Departamento de Química Orgánica, Facultad de Químicas-IRICA, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain

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PVDF/BaTiO3/carbon nanotubes ternary nanocomposites ...

2019-4-7  PVDF/BaTiO 3 /carbon nanotubes ternary nanocomposites prepared by ball milling: Piezo and dielectric responses Javier González-Benito, Corresponding Author. ... (PVDF) filled with barium titanate, BaTiO 3, (BT) particles, and multiwalled carbon nanotubes (MWCNTs) were prepared by high-energy ball milling (HEBM) and subsequent hot pressing ...

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Effect of ball milling parameters on the synthesization of ...

Recently, carbon nanotubes (CNTs) are attracting much interest as fibrous materials for reinforcing aluminium matrix composites due to unique properties such as high strength, elastic modulus, flexibility and high aspect ratios. However, the quality of the dispersion is the major concern factor which determines the homogeneity of the enhanced mechanical and tribological properties of the ...

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Carbon Nanotube Synthesis Using Mining Waste

2020-1-28  Currently, there are numerous methods for synthesizing carbon nanotubes, from laser methods and ball milling to catalyzed chemical vapor deposition. However, a new method has emerged that demonstrates the ability to create carbon nanotubes from mining waste, allowing troublesome waste products to find another use.

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High energy ball milling process for nanomaterial synthesis

2021-3-8  For all nanocrystalline materials prepared by high-energy ball milling synthesis route, surface and interface contamination is a major concern. In particular, mechanical attributed contamination by the milling tools (Fe or WC) as well as ambient gas (trace impurities such as O 2, N 2 in rare gases) can be problems for high-energy ball milling ...

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Study on the ball milling modification of attapulgite ...

2020-11-20  Specifically, the ball milling method has been employed worldwide to treat diverse particles. Typical cases include ball milling of multi-walled carbon nanotubes to improve their dispersion, dispersion of TiO 2 in polymers via ball milling, improved dispersion of ATP via ball milling treatment [14–16]. However, the nanoparticles treated by ...

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A facile approach to the scalable preparation of ...

2020-2-24  Disentangling and dispersing multiwalled carbon nanotubes (MWCNTs) in thermoplastics by the existing melt compounding facilities where neither solvent nor liquid chemicals are allowed remains a great challenge. This challenge is addressed herein by combining ball milling with melt compounding.

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A study of nanocrystalline nickel powders developed via ...

2019-2-20  Liu ZY, Xu SJ, Xiao BL, Xue P, Wang WG, Ma ZY (2012) Effect of ball-milling time on mechanical properties of carbon nanotubes reinforced aluminum matrix composites. Compos A: Appl Sci Manuf 43:2161–2168. Article Google Scholar 15. Cao W (2007) Synthesis of nanomaterials by high energy ball milling. Skyspring Nanomaterials, Inc

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Carbon nanotube reinforced metal matrix composites - a

2015-2-21  in Ag matrix composite.30 Carbon nanotubes were shortened in length due to this treatment, but no damage to the wall was reported. Morsi and Esawi34,35 have used ball milling to disperse CNTs in Al matrix. composites

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Nanotubes and Nanosheets: Functionalization and ...

2021-3-31  A world-renowned expert on nanotubes and ball milling, Dr. Chen invented the ball-milling and annealing method for mass production of boron nitride nanotubes, which led to the world’s first commercialization of boron nitride nanotubes in 2002. Professor Chen contributed to three bestselling nanotechnology books published by CRC Press.

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Mechanochemical Routes to Functionalized Graphene ...

Whereas dry ball‐milling of graphite under argon completely disrupted the graphite platelet structure and formed large agglomerates of spherical carbon nanoparticles, prolonged ball‐milling under NH 3 (8.3 bar) even for the long duration of 96 h barely broke up the graphite flakes while dry ball‐milling under carbon dioxide and nitrogen ...

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Enhanced adsorption of antimonate by ball-milled ...

2020-3-2  Ball-milling is considered as an economical and simple technology to produce novel engineered materials. The ball-milled microscale zero valent iron/pyrite composite (BM-ZVI/FeS 2) had been synthesized through ball-milling technology and applied for highly efficient sequestration of antimonate (Sb(V)) in aqueous solution.BM-ZVI/FeS 2 exhibited good Sb(V) removal efficiency (≥

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Ball-Milling Modification of Single-Walled Carbon ...

Stainless steel 304L alloy powder and multiwalled carbon nanotubes were mixed by ball-milling under ambient atmosphere and in a broad range of milling times, which spans from 0 to 120 min.

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Effect of planetary ball milling process parameters on the ...

2013-2-12  The dependence of multiwall carbon nanotube (MWCNT) length distribution and some nitrogen derived morphological descriptors on various planetary ball milling process parameters was investigated. Ball milling was found to cut nanotubes into smaller pieces, narrow their length distribution and increase their specific surface area and surface fractal dimension. Typical length reduction was

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Effects of ball-milling on lithium insertion into multi ...

The effects of ball-milling on Li insertion into multi-walled carbon nanotubes (MWNTs) are presented. The MWNTs are synthesized on supported catalysts by thermal chemical vapour deposition, purified, and mechanically ball-milled by the high energy ball-milling. The purified MWNTs and the ball-milled MWNTs were electrochemically inserted with Li.

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Ball-Milling of Graphite and Multi-Wall Carbon Nanotubes ...

The ball-milling of MWCNTs under impact mode usually resulted in the formation of an amorphous phase, whereas that under friction mode induced the fattening of nanotubes. The results showed that a variety of carbon nanomaterials could be obtained by the proper controlling of ball milling.

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Effect of Ball Milling Parameters on the Synthesization of ...

Recently, carbon nanotubes (CNTs) are attracting much interest as fibrous materials for reinforcing aluminium matrix composites due to unique properties such as high strength, elastic modulus, flexibility and high aspect ratios. However, the quality of the dispersion is the major concern factor which determines the homogeneity of the enhanced mechanical and tribological properties of the ...

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The Effect of High-Energy Ball Milling Conditions on ...

The milling was carried out at various milling speeds, namely 300, 660, and 900 rpm. Results suggested that the structure of the nanotubes is preserved with prolonged grinding of magnesium hydride and SWCNT in a ball mill for 180 min at a relatively low grinding speed of 300 rpm.

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Incorporation of Carbon Nanotubes into Polyethylene by ...

2007-1-25  Incorporation of Carbon Nanotubes into Polyethylene by High Energy Ball Milling: Morphology and Physical Properties GIULIANA GORRASI, 1MARIA SARNO, ANTONIO DI BARTOLOMEO,2 DIANA SANNINO, PAOLO CIAMBELLI,1 VITTORIA VITTORIA1 1Department of Chemical and Food Engineering, University of Salerno, Via Ponte don Melillo, 84084 Fisciano (SA),

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Electrochemical property studies of carbon nanotube films ...

2021-11-7  Co2B2O5 was synthesized by the rheological phase treatment, followed by ball-milling and subsequent calcination in oxygen atmosphere. The electrochemical properties of this material as a negative electrode for lithium-ion battery were investigated. There are two plateaus with potentials at 0.83 and 0.75 V, respectively, on the first discharge ...

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Microstructural Characterization of Aluminum-Carbon ...

Figure 2 Scanning electron microscopic images of mixture of aluminum and carbon nanotubes produced by ultrasonication (a,b) and ball milling (c,d). Figure 3 shows the particle size data for the Al powders and for the mixtures of Al and CNTs by ultrasonication and ball milling; the mean particle sizes are 15, 18, and 10 μ m, respectively.

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Carbon Nanotube-Reinforced Aluminum Matrix

2017-5-12  Although multiwall carbon nanotubes (MWCNT) are promising materials to strengthen lightweight aluminum matrix composites, their dispersion into the metallic matrix is challenge. In the present work, MWCNT were dispersed into age-hardenable AA6061 aluminum alloy by high-energy ball milling and the blend was subsequently hot-extruded. The composite bars obtained were heat-treated

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